Page 1
Cisco Small Business 200 Series Smart Switch
Administration Guide Release 1.1
10/100 Switches SF200-24, SF200-24P, SF200-48, SF200-48P
Gigabit Switches SG200-18, SG200-26, SG200-26P, SG200-50, SG200-50P
ADMINISTRATION
GUIDE
Page 2
Contents
Chapter 1: Getting Started 1
Starting the Web-based Switch Configuration Utility 1
Launching the Configuration Utility 1
Logging In 2
Password Expiration 5
Logging Out 5
Quick Start Switch Configuration 6
Window Navigation 7
Application Header 7
Management Buttons 9
Chapter 2: Viewing Statistics 12
Viewing Ethernet Interface 12
Viewing Etherlike Statistics 15
Viewing 802.1X EAP Statistics 17
Managing RMON Statistics 18
Viewing RMON Statistics 19
Configuring RMON History 21
Viewing the RMON History Table 23
Defining RMON Events Control 25
Viewing the RMON Events Logs 27
Defining RMON Alarms 28
Chapter 3: Managing System Logs 31
Setting System Log Settings 31
Setting Remote Logging Settings 34
Viewing Memory Logs 36
RAM Memory 36
Flash Memory 38
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Contents
Chapter 4: Managing System Files 39
Upgrade/Backup Firmware/Language 42
Downloading or Backing-up a Configuration or Log 45
Displaying Configuration File Properties 49
Copying Configuration Files 50
Setting DHCP Auto Configuration 52
Chapter 5: System Time 55
System Time Options 56
Configuring System Time 57
Adding an SNTP Server 59
Defining SNTP Authentication 63
Chapter 6: General Administrative Information and Operations 66
System Information 67
Displaying the System Summary 67
Configuring the System Settings 69
Switch Models 70
Rebooting the Switch 71
Monitoring the Fan Status 73
Defining Idle Session Timeout 74
Pinging a Host 75
Chapter 7: Configuring Discovery 77
Configuring Bonjour Discovery 77
Configuring LLDP 78
Setting LLDP Properties 80
Editing LLDP Port Settings 81
LLDP MED Protocol 85
Setting LLDP MED Network Policy 85
Configuring LLDP MED Port Settings 88
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Displaying LLDP Port Status 90
Displaying LLDP Local Information 92
Displaying LLDP Neighbors Information 96
Accessing LLDP Statistics 101
LLDP Overloading 102
Contents
Chapter 8: Port Management 106
Configuring Ports 106
Port Management Workflow 106
Setting the Basic Port Configuration 107
Configuring Link Aggregation 111
Static and Dynamic LAG Workflow 112
Defining LAG Management 113
Defining Member Ports in a LAG 114
Configuring LAG Settings 115
Configuring LACP 117
Setting Port LACP Parameter Settings 118
Green Ethernet 120
Setting Global Green Ethernet Properties 121
Setting Green Ethernet Properties for Ports 123
Chapter 9: Managing Device Diagnostics 125
Testing Copper Ports 125
Displaying Optical Module Status 129
Configuring Port and VLAN Mirroring 131
Viewing CPU Utilization 134
Chapter 10: Managing Power-over-Ethernet Devices 135
PoE on the Switch 135
PoE Features 135
PoE Operation 136
PoE Configuration Considerations 136
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 4
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Contents
Configuring PoE Properties 137
Configuring the PoE Power, Priority, and Class 139
Chapter 11: VLAN Management 143
VLANs 143
Configuring Default VLAN Settings 145
Creating VLANs 147
Configuring VLAN Interface Settings 150
Defining VLAN Membership 153
Configuring Port to VLAN 154
Configuring VLAN to Port 155
Viewing VLAN Membership 158
Voice VLAN 159
Voice VLAN Options 160
Configuring Voice VLAN Properties 161
Configuring Telephony OUI 163
Chapter 12: Configuring the Spanning Tree Protocol 165
STP Flavors 165
Configuring STP Status and Global Settings 166
Defining Spanning Tree Interface Settings 169
Configuring Rapid Spanning Tree Settings 172
Chapter 13: Managing MAC Address Tables 176
Configuring Static MAC Addresses 176
Dynamic MAC Addresses 178
Configuring Dynamic MAC Address Parameters 179
Querying Dynamic Addresses 179
Chapter 14: Configuring Multicast Forwarding 182
Multicast Forwarding 182
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Typical Multicast Setup 183
Multicast Operation 183
Multicast Registration 184
Multicast Address Properties 185
Contents
Defining Multicast Properties 185
Adding MAC Group Address 188
Adding IP Multicast Group Address 192
Configuring IGMP Snooping 195
Configuring MLD Snooping 199
Viewing GMP/MLD IP Multicast GroupsI 202
Defining Multicast Router Ports 203
Defining Forward All Multicast 205
Defining Unregistered Multicast Settings 207
Chapter 15: Configuring IP Information 210
Management and IP Interfaces 210
IP Addressing 212
Defining an IPv4 Interface 213
Defining IPv6 Global Configuration 215
Defining an IPv6 Interface 216
Defining IPv6 Addresses 218
Viewing the IPv6 Default Router List 220
Configuring IPv6 Tunnels 223
Defining IPv6 Neighbors Information 225
Viewing IPv6 Route Tables 229
Configuring ARP 230
Domain Name Systems 233
Defining DNS Servers 233
Mapping DNS Hosts 235
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Contents
Chapter 16: Configuring Security 238
Defining Users 240
Setting User Accounts 240
Setting Password Complexity Rules 242
Configuring RADIUS Parameters 244
Configuring Management Access Authentication 248
Defining Access Profiles 250
Displaying, Adding, or Activating an Access Profile 251
Defining Profile Rules 254
Configuring TCP/UDP Services 257
Defining Storm Control 259
Configuring Port Security 262
Configuring 802.1X 265
802.1X Parameters Workflow 266
Defining 802.1X Properties 267
Defining 802.1X Port Authentication 268
Defining Host and Session Authentication 271
Viewing Authenticated Hosts 274
Chapter 17: Configuring Quality of Service 275
QoS Features and Components 275
Configuring QoS 277
Displaying QoS Properties 277
Defining QoS InterfaceSettings 279
Configuring QoS Queues 281
Mapping CoS/802.1p to a Queue 283
Mapping DSCP to Queue 285
Configuring Bandwidth 286
Configuring Egress Shaping per Queue 288
Managing QoS Statistics 290
Viewing Queues Statistics 290
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 7
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Getting Started
This section provides an introduction to the user interface, and includes the
following topics:
• Starting the Web-based Switch Configuration Utility
• Quick Start Switch Configuration
• Window Navigation
1
Starting the Web-based Switch Configuration Utility
This section describes how to navigate the web-based switch configuration utility.
If you are using a pop-up blocker, make sure it is disabled.
Browser Restrictions
Browsers have the following restrictions:
• If you are using Internet Explorer 6, you cannot directly use an IPv6 address
to access the switch. You can, however, use the DNS (Domain Name
System) server to create a domain name that contains the IPv6 address,
and then use that domain name in the address bar in place of the IPv6
address.
• In Firefox, the automatic pop-up on top option is disabled by default. Certain
add-ons enable this feature during installation. To disable this option, go to
ToolsOptionsContentEnable JavaScriptAdvance.
• If you have multiple IPv6 interfaces on your management station, use the
IPv6 global address instead of IPv6 link local address to access the switch
from your browser.
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Getting Started
Starting the Web-based Switch Configuration Utility
Launching the Configuration Utility
To open the user interface:
STEP 1 Open a Web browser.
STEP 2 Enter the IP address of the switch you are configuring in the address bar on the
browser, and then press Enter. The
NOTE When the switch is using the factory default IP address of 192.168.1.254, its power
LED flashes continuously. When the switch is using a DHCP assigned IP address or
an administrator-configured static IP address, the power LED is on solid.
Logging In
1
Login
page opens.
Logging In
The default username is cisco and the default password is cisco. The first time
that you log in with the default username and password, you are required to enter
a new password.
To log in to the device configuration utility:
STEP 1 Enter the username/password. The password can contain up to 64 ASCII
characters. Password-complexity rules are described in the Setting Password
Complexity Rules section of the Configuring Security chapter.
STEP 2 If you are not using English, select the desired language from the Language drop-
down menu. To add a new language to the switch or update a current one, refer to
the Upgrade/Backup Firmware/Language section.
STEP 3 If this is the first time that you logged on with the default user ID (cisco) and the
default password (cisco) or your password has expired, the
Page opens. See Password Expiration for additional information.
STEP 4 Choose whether to select Disable Password Complexity Enforcement or not.
For more information on password complexity, see the Setting Password
Complexity Rules section.
Change Password
STEP 5 Enter the new password and click Apply.
When the login attempt is successful, the Getting Started page opens.
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Getting Started
!
Starting the Web-based Switch Configuration Utility
If you entered an incorrect username or password, an error message is displayed
and the Login page remains displayed on the window. If you are having problems
logging in, please see the Launching the Configuration Utility section in the
Administration Guide for additional information.
1
Select Don’t show this page on startup to prevent the
being displayed each time that you logon to the system. If you select this option,
the System Summary page is opened instead of the Getting Started page.
Getting Started
page from
Password Expiration
Password Expiration
The New Password page is displayed:
• The first time you access the switch with the default username cisco and
password cisco. This page forces you to replace the factory default
password.
• When the password expires, this page forces you to select a new
password.
Logging Out
Logging Out
By default, the application logs out after ten minutes of inactivity. You can change
this default value as described in the Defining Idle Session Timeout section in the
General Administrative Information and Operations chapter.
CAUTION Unless the Running Configuration is copied to the Startup Configuration, all
changes made since the last time the file was saved are lost if the switch is
rebooted. Save the Running Configuration to the Startup Configuration before
logging off to preserve any changes you made during this session.
A flashing red X icon displayed to the left of the Save application link indicates that
Running Configuration changes have been made that have not yet been saved to
the Startup Configuration file. The flashing can be disabled by clicking on the
Disable Save Icon Blinking button on the Copy/Save Configuration page
When the switch auto-discovers a device, such as an IP phone, it configures the
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Getting Started
Quick Start Switch Configuration
port appropriately for the device. These configuration commands are written to the
Running Configuration file. This causes the Save icon to begin blinking when the
user logs on even though the user did not make any configuration changes.
When you click Save, the Copy/Save Configuration page is displayed. Save the
Running Configuration file by copying it to the Startup Configuration file. After this
save, the red X icon and the Save application link are no longer displayed.
To logout, click Logout in the top right corner of any page. The system logs out of
the switch.
When a timeout occurs or you intentionally log out of the system, a message is
displayed and the
state. After you log in, the application returns to the initial page.
The initial page displayed depends on the “Do not show this page on startup”
option in the Getting Started page. If you did not select this option, the initial page
is the Getting Started page. If you did select this option, the initial page is the
System Summary page.
Login
1
page opens, with a message indicating the logged-out
Quick Start Switch Configuration
To simplify switch configuration through quick navigation, the Getting Started
page provides links to the most commonly used pages.
Links on the Getting Started page
Category Link Name (on the Page) Linked Page
Initial Setup Change Device IP Address
Create VLAN
Configure Port Settings
Device
Status
System Summary
Port Statistics
RMON Statistics
IPv4 Interface
Create VLAN
Port Setting
System Summary
interface
Statistics
page
page
page
page
page
page
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Getting Started
Quick Start Switch Configuration
Links on the Getting Started page (Continued)
Category Link Name (on the Page) Linked Page
1
View Log
Quick
Access
There are two hot links on the Getting Started page that take you to Cisco web
pages for more information. Clicking on the Support link takes you to the switch
product support page, and clicking on the Forums link takes you to the Small
Business Support Community page.
Change Device Password
Upgrade Device Software
Backup Device Configuration
Configure QoS
Configure Port Mirroring
RAM Memory
User Accounts
Upgrade/Backup Firmware/
Language
Download/Backup
Configuration/Log
QoS Properties
Port and VLAN Mirroring
page
page
page
page
page
page
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Getting Started
Window Navigation
Window Navigation
This section describes the features of the web-based switch configuration utility.
Application Header
Application Header
The Application Header is displayed on every page. It provides the following
application links:
Application Links
1
Application Link
Name
Username Displays the name of the user logged on to the switch. The
Language Menu Select a language or load a new language file into the
Description
A flashing red X icon displayed to the left of the Save
application link indicates that Running Configuration
changes have been made that have not yet been saved to
the Startup Configuration file. The flashing of the red X can
be disabled on the Copy/Save Configuration page.
Click Save to display the Copy/Save Configuration page.
Save the Running Configuration file type by copying it to
the Startup Configuration file type on the switch. After this
save, the red X icon and the Save application link are no
longer displayed. When the switch is rebooted, it copies
the Startup Configuration file type to the Running
Configuration and sets the switch parameters according to
the data in the Running Configuration.
default username is cisco. (The default password is cisco.)
switch. If the language required is displayed in the menu,
select it. If it is not displayed, select Download Language.
For more information about adding a new language, refer
to the Upgrade/Backup Firmware/Language.
Logout Click to logout of the web-based switch configuration
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 6
utility.
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Getting Started
Window Navigation
1
Application Links (Continued)
Application Link
Name
About Click to display the switch name and switch version
Help Click to display the online help.
Description
number.
The SYSLOG Alert Status icon is displayed when a
SYSLOG message, above the critical severity level, is
logged. Click the icon to open the RAM Memory page.
After you access this page, the SYSLOG Alert Status icon
is no longer displayed. To display the page when there is
not an active SYSLOG message, follow the Status and
Statistics > View Log > RAM Memory page path.
Management Buttons
Management Buttons
The following table describes the commonly-used buttons that appear on various
pages in the system.
Management Buttons
Button Name Description
The Administrator can use the pull-down menu to
configure how many entries per page they wish to see at a
time.
Indicates a mandatory field.
Add Click to display the related Add page and add an entry to a
table. Enter the information and click Apply to save it to the
Running Configuration. Click Close to return to the main
page. Click Save to display the Copy/Save Configuration
page and save the Running Configuration to the Startup
Configuration file type on the switch.
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Getting Started
Window Navigation
1
Management Buttons (Continued)
Button Name Description
Apply Click to apply changes to the Running Configuration on the
switch. If the switch is rebooted, the Running Configuration
is lost, unless it is saved to the Startup Configuration file
type or another file type. Click Save to display the Copy/
Save Configuration page and save the Running
Configuration to the Startup Configuration file type on the
switch.
Cancel Click to reset changes made on the page.
Clear All
Interfaces
Counters
Clear Interface
Counters
Clear Logs Clears log files.
Clear Table Clears table entries.
Close Returns to main page. If there are changes that were not
Copy Settings A table typically contains one or more entries containing
Click to clear the statistic counters for all interfaces.
Click to clear the statistic counters for the selected
interface.
applied to the Running Configuration, a message is
displayed.
configuration settings. Instead of modifying each entry
individually, it is possible to modify one entry and then
copy it to multiple entries, as described below:
1. Select the entry to be copied. Click Copy Settings to
display the popup.
2. Enter the destination entry numbers in the to field.
Delete Select the entry in the table to be deleted and click Delete
Details Click to display the details associated with the entry
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 8
3. Click Apply to save the changes and click Close to
return to the main page.
to remove entries from a table. The entry is deleted.
selected on the main page.
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Getting Started
Window Navigation
1
Management Buttons (Continued)
Button Name Description
Edit Select the entry and click Edit to open the entries for
editing. The Edit page opens, and the entry can be
modified.
1. C li ck Apply to save the changes to the Running
Configuration.
2. Click Close to return to the main page.
Go Enter the query filtering criteria and click Go. The results
are displayed on the page.
Te st Click Te s t to perform the related tests.
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Viewing Statistics
This section describes how to view switch statistics.
It contains the following sections:
• Viewing Ethernet Interface
• Viewing Etherlike Statistics
• Viewing 802.1X EAP Statistics
2
• Managing RMON
Viewing Ethernet Interface
The Interface page displays traffic statistics per port. The refresh rate of the
information can be selected.
This page is useful for analyzing the amount of traffic that is both sent and
received and its dispersion (Unicast, Multicast, and Broadcast).
To display Ethernet statistics:
STEP 1 Click Status and Statistics > Interface. The Interface page opens.
STEP 2 Enter the parameters.
• Interface—Select the type of interface and specific interface for which
Ethernet statistics are to be displayed.
• Refresh Rate—Select the time period that passes before the interface
Ethernet statistics are refreshed. The available options are:
- No Refresh—Statistics are not refreshed.
- 15 Sec—Statistics are refreshed every 15 seconds.
- 30 Sec—Statistics are refreshed every 30 seconds.
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Viewing Statistics
Viewing Etherlike Statistics
2
- 60 Sec—Statistics are refreshed every 60 seconds.
The Receive Statistics area displays information about incoming packets.
• Tot al By t es (O c te ts )—Octets received, including bad packets and FCS
octets, but excluding framing bits.
• Unicast Packets—Good Unicast packets received.
• Multicast Packets—Good Multicast packets received.
• Broadcast Packets—Good Broadcast packets received.
• Packets with Errors—Packets with errors received.
The Transmit Statistics area displays information about outgoing packets.
• Tot al By t es (O c te ts )—Octets transmitted, including bad packets and FCS
octets, but excluding framing bits.
• Unicast Packets—Good Unicast packets transmitted.
• Multicast Packets—Good Multicast packets transmitted.
• Broadcast Packets—Good Broadcast packets transmitted.
To clear statistics counters:
• Click Clear Interface Counters to clear counters for the interface displayed.
• Click Clear All Interface Counters to clear counters for all interfaces.
Viewing Etherlike Statistics
The Etherlike page displays statistics per port according to the Etherlike MIB
standard definition. The refresh rate of the information can be selected. This page
provides more detailed information regarding errors in the physical layer (Layer 1),
which might disrupt traffic.
To view Etherlike Statistics:
STEP 1 Click Status and Statistics > Etherlike. The Etherlike page opens.
STEP 2 Enter the parameters.
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Viewing Statistics
Viewing Etherlike Statistics
2
• Interface—Select the type of interface and specific interface for which
Ethernet statistics are to be displayed.
• Refresh Rate—Select the amount of time that passes before the Etherlike
statistics are refreshed.
The fields are displayed for the selected interface.
• Frame Check Sequence (FCS) Errors—Received frames that failed the
CRC (cyclic redundancy checks).
• Single Collision Frames—The number of frames involved in a single
collision, but were successfully transmitted.
• Late Collisions—Collisions that have been detected after the first 512 bits
of data.
• Excessive Collisions—Number of transmissions due to excessive collisions.
• Oversize Packets—Packets greater than 1518 octets received.
• Internal MAC Receive Errors—Frames rejected because of receiver errors.
• Pause Frames Received—Received flow control pause frames.
• Pause Frames Transmitted—Flow control pause frames transmitted from
the selected interface.
To clear statistics counters:
• Click Clear Interface Counters to clear the selected interface’s Etherlike
statistics counters.
• Click Clear All Interface Counters to clear the Etherlike statistics counters
of all interfaces.
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Viewing Statistics
Viewing 802.1X EAP Statistics
Viewing 802.1X EAP Statistics
The 802.1x EAP page displays detailed information regarding the EAP (Extensible
Authentication Protocol) frames that were sent or received. To configure the
802.1X feature, see the 802.1X Properties page.
To v i ew t h e E A P S t a t is ti c s :
2
STEP 1 Click Status and Statistics > 802.1X EAP. The 802.1x EAP page
STEP 2 Select the Port that is polled for statistics.
STEP 3 Select the time period (Refresh Rate) that passes before the EAP statistics are
refreshed.
The values are displayed for the selected interface.
• EAPOL Frames Received—Valid EAPOL frames received on the port.
• EAPOL Frames Transmitted—Valid EAPOL frames transmitted by the port.
• EAPOL Start Frames Received—EAPOL Start frames received on the port.
• EAPOL Logoff Frames Received—EAPOL Logoff frames received on the
port.
• EAP Response/ID Frames Received—EAP Resp/ID frames received on the
port.
• EAP Response Frames Received—EAP Response frames received by the
port (other than Resp/ID frames).
• EAP Request/ID Frames Transmitted—EAP Req/ID frames transmitted by
the port.
opens.
• EAP Request Frames Transmitted—EAP Request frames transmitted by
the port.
• Invalid EAPOL Frames Received—Unrecognized EAPOL frames received
on this port.
• EAP Length Error Frames Received—EAPOL frames with an invalid Packet
Body Length received on this port.
• Last EAPOL Frame Version—Protocol version number attached to the most
recently received EAPOL frame.
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Viewing Statistics
Managing RMON
To clear the counters for a specified interface, click Clear Interface Counters. To
clear the counters for all interfaces, click Clear All Interface Counters.
Managing RMON
RMON (Remote Networking Monitoring) enables the switch to proactively monitor
traffic statistics over a given period.
With this feature, you can view statistics (counter values) as they are currently,
meaning since the last time they were cleared.
2
• Last EAPOL Frame Source—Source MAC address attached to the most
recently received EAPOL frame.
Viewing RMON Statistics
The Statistics page displays detailed information regarding packet sizes and
some information regarding physical layer errors. The information shown is
according to the RMON standard. An oversized packet is defined as an Ethernet
frame with the following criteria:
• Packet length is greater than MRU byte size
• Collision event has not been detected
• Late collision event has not been detected
• Rx error event has not been detected
• Packet has a valid CRC
To view the RMON statistics:
STEP 1 Click RMON > Statistics. The Statistics page opens.
STEP 2 Select the Interface for which Ethernet statistics are to be displayed.
STEP 3 Select the Refresh Rate, the time period that passes before the interface
statistics are refreshed.
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Viewing Statistics
Managing RMON
2
The statistics are displayed for the selected interface.
• Bytes Received (Octets)—Number of octets received, including bad
packets and FCS octets, but excluding framing bits.
• Drop Events—Number of packets that were dropped.
• Packets Received—Number of good packets received, including Multicast
and Broadcast packets.
• Broadcast Packets Received—Number of good Broadcast packets
received. This number does not include Multicast packets.
• Multicast Packets Received—Number of good Multicast packets received.
• CRC & Align Errors—Number of CRC and Align errors that have occurred.
• Undersize Packets—Number of undersized packets (less than 64 octets)
received.
• Oversize Packets—Number of oversized packets (over 1518 octets)
received.
• Fragments—Number of fragments (packets with less than 64 octets,
excluding framing bits, but including FCS octets) received.
• Jabbers—Total number received packets that were longer than 1632
octets. This number excludes frame bits, but includes FCS octets that had
either a bad FCS (Frame Check Sequence) with an integral number of octets
(FCS Error) or a bad FCS with a non-integral octet (Alignment Error) number.
A Jabber packet is defined as an Ethernet frame that satisfies the following
criteria:
- Packet data length is greater than MRU
- Packet has an invalid CRC
- Rx Error Event has not been detected
• Collisions—Number of collisions received. If Jumbo Frames are enabled,
the threshold of Jabber Frames is raised to the maximum size of Jumbo
Frames.
• Frames of 64 Bytes—Number of frames, containing 64 bytes that were
received.
• Frames of 65 to 127 Bytes—Number of frames, containing 65-127 bytes
that were received.
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Viewing Statistics
Managing RMON
STEP 4 Select another interface in the Interface field. The RMON statistics are displayed.
2
• Frames of 128 to 255 Bytes—Number of frames, containing 128-255 bytes
that were received.
• Frames of 256 to 511 Bytes—Number of frames, containing 256-511 bytes
that were received.
• Frames of 512 to 1023 Bytes—Number of frames, containing 512-1023
bytes that were received.
• Frames greater than 1024 Bytes—Number of frames, containing 1024-
1632 bytes, and Jumbo Frames, that were received.
To reset the counters, click Clear Interface Counters, or Clear All Interfaces
Counters
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Managing System Logs
This section describes the System Log feature, which enables the switch to keep
several independent logs. Each log is a set of messages recording system events.
The switch generates the following local logs:
• Log sent to the console interface
• Log written into a cyclical list of logged events in RAM and is erased when
the switch reboots.
3
• Log written to a cyclical log-file saved to Flash memory and persists across
reboots.
In addition, you can send messages to remote SYSLOG servers in the form of
SYSLOG messages.
This section contains the following sections:
• Setting System Log Settings
• Setting Remote Logging Settings
• Viewing Memory Logs
Setting System Log Settings
You can enable or disable logging on the Log Settings page, and select whether
to aggregate log messages.
Severity Levels
You can select the events by severity level. Each log message has a severity level
marked with the first letter of the severity level concatenated with a dash (-) on
each side (except for Emergency that is indicated by the letter F). For example, the
log message "%INIT-I-InitCompleted: … " has a severity level of I, meaning
Informational.
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Managing System Logs
Setting System Log Settings
3
The event severity levels are listed from the highest severity to the lowest severity,
as follows:
• Emergency—System is not usable.
• Alert—Action is needed.
• Critical—System is in a critical condition.
• Error—System is in error condition.
• Warning—System warning has occurred.
• Notice—System is functioning properly, but a system notice has occurred.
• Informational—Device information.
• Debug—Provides detailed information about an event.
You can select different severity levels for RAM and Flash logs. These logs are
displayed in the RAM Memory page and Flash Memory page, respectively.
Selecting a severity level to be stored in a log causes all of the higher severity
events to be automatically stored in the log. Lower severity events are not stored
in the log.
For example, if Warning is selected, all severity levels that are Warning and higher
are stored in the log (Emergency, Alert, Critical, Error, and Warning). No events with
severity level below Warning are stored (Notice, Informational, and Debug).
To set global log parameters:
STEP 1 Click Administration > System Log > Logs Settings. The Log Settings page
opens.
STEP 2 Enter the parameters.
• Logging—Select to enable message logging.
• Syslog Aggregation—Select to enable the aggregation of SYSLOG
messages and traps. If enabled, identical and contiguous SYSLOG
messages and traps are aggregated over an interval of time and sent in a
single message. The aggregated messages are sent in the order of their
arrival. Each message states the number of times it has been aggregated.
• Max Aggregation Time—Enter the interval of time that SYSLOG messages
are aggregated.
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Managing System Logs
Setting Remote Logging Settings
• RAM Memory Logging—Select the severity levels of the messages to be
logged to RAM.
• Flash Memory Logging—Select the severity levels of the messages to be
logged to Flash memory.
STEP 3 Click Apply. The Running Configuration file is updated.
Setting Remote Logging Settings
The
Remote Log Servers
log messages are sent (using the SYSLOG protocol). For each server, you can
configure the severity of the messages that it receives.
page enables defining remote SYSLOG servers where
3
To d e fi n e S Y S L O G s e r ve rs :
STEP 1 Click Administration > System Log > Remote Log Servers. The
Servers
This page displays the list of remote log servers.
STEP 2 Click Add. The
STEP 3 Enter the parameters.
page opens.
Add Remote Log Server
• Server Definition—Select whether to specify the remote log server by IP
address or name.
• IP Version—Select the supported IP format.
• IPv6 Address Type—Select the IPv6 address type (if IPv6 is used). The
options are:
- Link Local—The IPv6 address uniquely identifies hosts on a single
network link. A link local address has a prefix of FE80, is not routable, and
can be used for communication only on the local network. Only one link
local address is supported. If a link local address exists on the interface,
this entry replaces the address in the configuration.
page opens.
Remote Log
- Global—The IPv6 address is a global Unicast IPV6 type that is visible and
• Link Local Interface—Select the link local interface (if IPv6 Address Type
Link Local is selected) from the list.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 18
reachable from other networks.
Page 27
Managing System Logs
Viewing Memor y Logs
3
• Log Server IP Address/Name—Enter the IP address or domain name of the
log server.
• UDP Port—Enter the UDP port to which the log messages are sent.
• Facility—Select a facility value from which system logs are sent to the
remote server. Only one facility value can be assigned to a server. If a second
facility code is assigned, the first facility value is overridden.
• Description—Enter a server description.
• Minimum Severity—Select the minimum level of system log messages to
be sent to the server.
STEP 4 Click Apply. The Add Remote Log Server page
added, and the Running Configuration file is updated.
Viewing Memory Logs
The switch can write to the following logs:
• Log in RAM (cleared during reboot).
• Log in Flash memory (cleared only upon user command).
You can configure the messages that are written to each log by severity, and a
message can go to more than one log, including logs that reside on external
SYSLOG servers.
RAM Memory
RAM Memory
closes, the SYSLOG server is
The RAM Memory page
saved in RAM (cache). Entries are stored in the RAM log according to the
configuration in the Log Settings page.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 19
displays all messages, in chronological order, that were
Page 28
Managing System Logs
Viewing Memor y Logs
3
To view log entries, click Status and Statistics > View Log > RAM Memory. The
RAM Memory page
The top of the page has a button that allows you to Disable Alert Icon Blinking.
Click to toggle between disable and enable.
This page displays the following fields:
• Log Index—Log entry number.
• Log Time—Time when message was generated.
• Severity—Event severity.
• Description—Message text describing the event.
To clear the log messages, click Clear Logs. The messages are cleared.
opens.
Flash Memory
Flash Memory
The Flash Memory page
memory, in chronological order. The minimum severity for logging is configured in
the Log Settings page. Flash logs remain when the switch is rebooted. You can
clear the logs manually.
To view the Flash logs click Status and Statistics > View Log > Flash Memory.
The
Flash Memory
This page displays the following fields:
• Log Index—Log entry number.
• Log Time—Time when message was generated.
• Severity—Event severity.
• Description—Message text describing the event.
To clear the messages, click Clear Logs. The messages are cleared.
page opens.
displays the messages that were stored in Flash
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 20
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Managing System Files
You can choose the firmware file from which the switch boots. You can also copy
file types internally on the switch, or to or from an external device, such as a PC.
The methods of file transfer are:
• Internal copy.
• HTTP that uses the facilities that the browser provides.
4
• TFTP client, requiring a TFTP server.
Configuration files on the switch are defined by their type, and contain the settings
and parameter values for the device. When a configuration is referenced on the
switch, it is referenced by its configuration file type, as opposed to a file name
that can be modified by the user. Content can be copied from one file type to
another, but the names of the file types cannot be changed by the user. Other files
on the device include firmware, boot code, and log files, and are referred to as
operational files.
The configuration files are text files and can be edited by a user in a text editor,
such as Notepad after they are copied to an external device, such as a PC.
Files and File Types
The following types of configuration and operational files are found on the switch:
• Running Configuration—Parameters that are currently used by the switch
to operate. It is the only file type that is modified by you when the parameter
values are changed by using one of the configuration interfaces, and must
be manually saved to be preserved.
If the switch is rebooted, the Running Configuration is lost. When the switch
is rebooted, this file type is copied from the Startup Configuration stored in
Flash to the Running Configuration stored in RAM.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 21
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Managing System Files
4
To preserve any changes made to the switch, you must save the Running
Configuration to the Startup Configuration, or another file type if you do not
want the switch to reboot with this configuration. If you have saved the
Running Configuration to the Startup Configuration, when the switch is
rebooted, it recreates a Running Configuration that includes the changes
you have made since the last time the Running Configuration was saved to
the Startup Configuration.
• Startup Configuration—The parameter values that were saved by you by
copying another configuration (usually the Running Configuration) to the
Startup Configuration.
The Startup Configuration is retained in Flash and is preserved any time the
switch is rebooted. When it is rebooted, the Startup Configuration is copied
to RAM and identified as the Running Configuration.
• Backup Configuration—A manual copy of the parameter definitions for
protection against system shutdown or for the maintenance of a specific
operating state. You can copy the Mirror Configuration, Startup
Configuration, or Running Configuration to a Backup Configuration file. The
Backup Configuration exists in Flash and is preserved if the device is
rebooted.
• Mirror Configuration—A copy of the Startup Configuration, created by the
switch after:
- The switch has been operating continuously for 24 hours.
- No configuration changes have been made to the Running Configuration
in the previous 24 hours.
- The Startup Configuration is identical to the Running configuration.
Only the system can copy the Startup Configuration to the Mirror
Configuration. However, you can copy from the Mirror Configuration to other
file types or to another device.
If the switch is rebooted, the Mirror Configuration is reset to the factory
default parameters. In all other aspects, the Mirror Configuration behaves
the same as a Backup Configuration, providing a copy of the parameter
values that is preserved if the switch is rebooted.
• Firmware—The program that controls the operations and functionality of
the switch. More commonly referred to as the image.
• Boot Code—Controls the basic system startup and launches the firmware
image.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 22
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Managing System Files
!
4
• Language File—The dictionary that allows the windows to be displayed in
the selected language.
• Flash Log—SYSLOG messages stored in Flash memory.
File Actions
The following actions can be performed to manage firmware and configuration
files:
• Upgrade the firmware or boot code, or replace a language as described in
Upgrade/Backup Firmware/Language section.
• Save configuration files on the switch to a location on another device as
described in the Downloading or Backing-up a Configuration or Log
section.
• Clear the Startup Configuration or Backup Configuration file types as
described in the Displaying Configuration File Properties section.
• Copy one configuration file type onto another configuration file type as
described in the Copying Configuration Files section.
• Automatically upload a configuration file from a TFTP server to the switch
as described in the Setting DHCP Auto Configuration section.
CAUTION Unless the Running Configuration is manually copied to the Startup Configuration,
Backup Configuration, or an external file, all changes made since the last time the
file was saved are lost when the switch is rebooted. We recommend that you save
the Running Configuration to the Startup Configuration before logging off to
preserve any changes you made during this session.
A red X icon, displayed to the left of the Save application link at the top right of the
screen, indicates that configuration changes have been made and have not yet
been saved to the Startup Configuration file.
When you click Save, the Copy/Save Configuration page is displayed. Save the
Running Configuration file by copying it to the Startup Configuration file. After this
save, the red X icon and the Save link is hidden.
This section describes how configuration and log files are managed.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 23
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Managing System Files
Upgrade/Backup Firmware/Language
It includes the following topics:
• Upgrade/Backup Firmware/Language
• Downloading or Backing-up a Configuration or Log
• Displaying Configuration File Properties
• Copying Configuration Files
• Setting DHCP Auto Configuration
Upgrade/Backup Firmware/Language
The Upgrade/Backup Firmware/Language process can be used to:
4
• Upgrade or backup the firmware image
• Upgrade or backup the boot code
• Import a new language file, upgrade an existing language file, or remove a
second language file
The following methods for transferring files are supported:
• HTTP that uses the facilities provided by the browser
• TFTP that requires a TFTP server
If a new language file was loaded onto the switch, the new language can be
selected from the drop-down menu. (It is not necessary to reboot the switch.)
Upgrade/Backup Firmware/Language
The
selecting Download New Language in the Language drop down menu on every
page.
A single firmware image is stored on the switch. After uploading a new firmware
image to the switch, that image is used. After new firmware has been successfully
loaded into the switch, the device needs to be rebooted prior to the new firmware
taking effect. The
the reboot.
Summary
page will continue to show the previous image prior to
page can also be accessed by
Uploading a New Firmware or Language File
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 24
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Managing System Files
Upgrade/Backup Firmware/Language
To download or backup a system or language file:
STEP 1 Click Administration > File Management > Upgrade/Backup Firmware/
Language. The Upgrade/Backup Firmware/Language page opens.
STEP 2 Click the Transfer Method. If you selected TFTP, go to STEP 3. If you selected
HTTP, go to STEP 4.
STEP 3 If you selected TFTP, enter the parameters as described in this step. Otherwise,
skip to STEP 4.
Select either the Upgrade or Backup Save Action.
Upgrade Save Action—Specifies that the file type on the switch is to be replaced
with a new version of that file type located on a TFTP server. Enter the following
fields.
a. File Type—Select the destination file type. Only valid file types are shown.
(The file types are described in the Files and File Types section.) Note that the
boot code can only be upgraded via TFTP.
4
b. Server Definition—Select whether to specify the TFTP server by IP address
or domain name.
c. IP Version—Select whether an IPv4 or an IPv6 address is used.
d. IPv6 Address Type—Select the IPv6 address type (if IPv6 is used). The
options are:
Link Local—The IPv6 address uniquely identifies hosts on a single network link.
A link local address has a prefix of FE80, is not routable, and can be used for
communication only on the local network. Only one link local address is
supported. If a link local address exists on the interface, this entry replaces the
address in the configuration.
Global—The IPv6 address is a global Unicast IPV6 type that is visible and
reachable from other networks.
e. Link Local Interface—Select the link local interface (if IPv6 is used) from the
list.
f. TFTP Server IP Address/Name—Enter the IP address or the domain name of
the TFTP server.
g. Source File Name—Enter the name of the source file.
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Managing System Files
Upgrade/Backup Firmware/Language
Backup Save Action—Specifies that a copy of the file type is to be saved to a file
on another device. Enter the following fields:
a. File Type—Select the source file type. Only valid file types can be selected.
(The file types are described in the Files and File Types section.)
b. Server Definition—Select either By IP Address or By name.
c. IP Version—Select whether an IPv4 or an IPv6 address is used.
d. IPv6 Address Type—Select the IPv6 address type (if used). The options are:
Link Local—The IPv6 address uniquely identifies hosts on a single network link.
A link local address has a prefix of FE80, is not routable, and can be used for
communication only on the local network. Only one link local address is
supported. If a link local address exists on the interface, this entry replaces the
address in the configuration.
4
Global—The IPv6 address is a global Unicast IPV6 type that is visible and
reachable from other networks.
e. Link-Local Interface—Select the link local interface (if IPv6 is used) from the
list.
f. TFTP Server IP Address/Name—Enter the IP address of the TFTP server.
g. Destination File Name—Enter the destination file name. File names cannot
contain slashes (\ or /), the leading letter of the file name should not be a period
(.), and the file name should be between 1 and 160 characters. (Valid
characters: A-Z, a-z, 0-9, “.”, “-”, “_”).
STEP 4 If you selected HTTP, you can only Upgrade. Enter the parameters as described in
this step.
a. File Type—Select the configuration file type. Only valid file types can be
selected. (The file types are described in the Files and File Types section.)
b. File Name—Click Browse to select a file or enter the path and source file name
to be used in the transfer.
STEP 5 Click Apply or Done. The file is upgraded or backed up.
Language Files
You can also remove a second language file from the switch if you have two
different ones installed. When you open the Language menu, you will see the
option Delete Language.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 26
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Managing System Files
Downloading or Backing-up a Configuration or Log
STEP 1 Click Delete Language.
STEP 2 A confirmation window appears asking you to click OK to remove the file.
STEP 3 Click OK to remove the file.
If you already have a second language file and want to load another, you will
receive a confirmation window asking you to click OK if you want to replace the
existing language file with a new one.
Downloading or Backing-up a Configuration or Log
The
Download/Backup Configuration/Log
configuration file types or the flash log on the switch to a file on another device or
the restoration of configuration file types from another device to the switch.
page enables the backup from
4
When restoring a configuration file to the Running Configuration, the imported file
adds any configuration commands that did not exist in the old file and overrides
any parameter values in the existing configuration commands.
When restoring a configuration file to the Startup Configuration or a backup
configuration file, the new file replaces the previous file.
When restoring to Startup Configuration, the switch must be rebooted for the
restored Startup Configuration to be used as the Running Configuration. You can
reboot the switch by using the process described in the Rebooting the Switch
section.
To backup or restore the system configuration file:
STEP 1 Click Administration > File Management > Download/Backup Configuration/
Log. The Download/Backup Configuration/Log page opens.
STEP 2 Click the Transfer Method.
STEP 3 If you selected TFTP, enter the parameters. Otherwise, skip to STEP 4.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 27
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Managing System Files
Downloading or Backing-up a Configuration or Log
Select either Download or Backup as the Save Action.
Download Save Action—Specifies that the file on another device will replace a
file type on the switch. Enter the following fields:
a. Server Definition—Select whether to specify the TFTP server by IP address
or by domain name.
b. IP Version—Select whether an IPv4 or an IPv6 address is used.
NOTE If the server is selected by name in the Server Definition, there is no
need to select the IP Version related options.
c. IPv6 Address Type—Select the IPv6 address type (if used). The options are:
- Link Local—The IPv6 address uniquely identifies hosts on a single
network link. A link local address has a prefix of FE80, is not routable,
and can be used for communication only on the local network. Only one
link local address is supported. If a link local address exists on the
interface, this entry replaces the address in the configuration.
4
- Global—The IPv6 address is a global Unicast IPV6 type that is visible
and reachable from other networks.
d. Link-Local Interface—Select the link local interface from the list.
e. TFTP Server—Enter the IP address of the TFTP server.
f. Source File Name—Enter the source file name. File names cannot contain
slashes (\ or /), the leading letter of the file name should not be a period (.), and
the file name should be between 1 and 160 characters. (Valid characters: A-Z,
a-z, 0-9, “.”, “-”, “_”).
g. Destination File Type—Enter the destination configuration file type. Only valid
file types are displayed. (The file types are described in the Files and File
Types section.)
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Managing System Files
Downloading or Backing-up a Configuration or Log
Backup Save Action—Specifies that a file type is to be copied to a file on another
device. Enter the following fields:
a. Server Definition—Select whether to specify the TFTP server by IP address
or by domain name.
a. IP Version—Select whether an IPv4 or an IPv6 address is used.
b. IPv6 Address Type—Select the IPv6 address type (if used). The options are:
• Link Local—The IPv6 address uniquely identifies hosts on a single network
link. A link local address has a prefix of FE80, is not routable, and can be used
for communication only on the local network. Only one link local address is
supported. If a link local address exists on the interface, this entry replaces
the address in the configuration.
• Global—The IPv6 address is a global Unicast IPV6 type that is visible and
reachable from other networks.
4
c. Link-Local Interface—Select the link local interface from the list.
d. TFTP Server IP Address/Name—Enter the IP address or domain name of the
TFTP server.
e. Source File Type—Enter the source configuration file type. Only valid file
types are displayed. (The file types are described in the Files and File Types
section.)
f. Destination File Name—Enter the destination file name. File names cannot
contain slashes (\ or /), the leading letter of the file name should not be a period
(.), and the file name should be between 1 and 160 characters. (Valid
characters: A-Z, a-z, 0-9, “.”, “-”, “_”).
STEP 4 If you selected HTTP, enter the parameters as described in this step.
Select the Save Action.
If for the Save Action you select Download to specify that the file type on the
switch is to be replaced with a new version of that file type from a file on another
device, do the following. Otherwise, go to the next procedure in this step.
a. Source File Name—Click Browse to select a file or enter the path and source
file name to be used in the transfer.
b. Destination File Type—Select the configuration file type. Only valid file types
are displayed. (The file types are described in the Files and File Types
section.)
c. Click Apply. The file is transferred from the other device to the switch.
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Managing System Files
Displaying Configuration File Properties
If for the Save Action you selected Backup to specify that a file type is to be
copied to a file on another device, do the following:
a. Source File Type—Select the configuration file type. Only valid file types are
displayed. (The file types are described in the Files and File Types section.)
b. Click Apply. The Download/Backup Configuration/Log window displays.
STEP 5 Click Done. The file is upgraded or backed up on the switch (depending upon the
file type).
Displaying Configuration File Properties
4
This
Configuration Files Properties
configuration file types and the date and time they were modified. It also enables
deleting the Startup Configuration and/or the Backup Configuration. You cannot
delete the other configuration file types.
To view configuration file properties, click Administration > File Management >
Configuration Files Properties. The
This page provides the following fields:
• Configuration File Name—Displays the type of file.
• Creation Time—Displays the date and time that file was modified.
To clear a configuration file, select it and click Clear Files.
Copying Configuration Files
When you click Apply on any window, changes that you made to the switch
configuration settings are stored only in the Running Configuration. To preserve
the parameters in the Running Configuration, the Running Configuration must be
copied to another configuration type or saved as a file on another device.
page enables the viewing of system
Configuration Files Properties
page opens.
The
Copy/Save Configuration
file to another for backup purposes. The bottom of the page has a button, Disable
Save Icon Blinking. Click to toggle between disable and enable.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 30
page enables copying or saving one configuration
Page 39
Managing System Files
!
Copying Configuration Files
CAUTION Unless the Running Configuration is copied to the Startup Configuration or another
4
configuration file, all changes made since the last time the file was copied are lost
when the switch is rebooted.
The following combinations of copying internal file types are allowed:
• From the Running Configuration to the Startup Configuration or Backup
Configuration.
• From the Startup Configuration to the Backup Configuration.
• From the Backup Configuration to the Startup Configuration.
• From the Mirror Configuration to the Startup Configuration or Backup
Configuration.
To copy one configuration from one file type to another file type:
STEP 1 Click Administration > File Management > Copy/Save Configuration. The
Save Configuration
STEP 2 Select the Source File Name to be copied. Only valid file types are displayed.
(The file types are described in the Files and File Types section.)
STEP 3 Select the Destination File Name to be overwritten by the source file.
STEP 4 Click Apply. The file is copied.
page opens.
Copy/
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 31
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Managing System Files
Setting DHCP Auto Configuration
Setting DHCP Auto Configuration
Dynamic Host Configuration Protocol (DHCP) provides a means of passing
configuration information (including the IP address of a TFTP server and a
configuration file name) to hosts on a TCP/IP network. By default, the switch is
enabled as a DHCP client.
DHCP Auto Configuration
When the IP address is allocated or renewed, such as during a reboot or upon an
explicit DHCP renewal request and if the switch and the server are configured to
do so, the switch transfers a configuration file from the TFTP server identified to
the switch by DHCP. This process is known as auto configuration.
NOTE If you enable DHCP Auto Configuration on a switch with DHCP disabled, you must
enable the DHCP by using the procedure is described in the Management and IP
Interfaces section.
4
The
DHCP Auto Configuration
information pointing to a TFTP server and file for auto configuration purposes or
manual configuration of the TFTP server and configuration file in the event that the
information is not provided in a DHCP message.
Note the following limitations regarding the DHCP auto-update process:
• A configuration file that is placed on the TFTP server must match the form
and format requirements of a supported configuration file. The form and
format of the file are checked, but the validity of the configuration
parameters is not checked prior to loading it to the Startup Configuration.
• To make sure the configuration of devices functions as intended and due to
allocation of different IP addresses with each DHCP renew cycle, IP
addresses must be bound to MAC addresses in the DHCP server table. This
ensures that each device has its own reserved IP address and other
relevant information.
page configures the switch to receive DHCP
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 32
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Managing System Files
Setting DHCP Auto Configuration
To configure DHCP server auto configuration:
4
STEP 1 Click Administration > File Management > DHCP Auto Configuration. The
Auto Configuration
STEP 2 Enter the values.
• Auto Configuration Via DHCP—Select this field to enable the automatic
transfer of a configuration file from a TFTP server to the Startup
Configuration on the switch.
• Server Definition—Select By IP Address or By name.
• Backup TFTP Server IP Address/Name—Enter the IP address or the name
of the TFTP server to be used if no TFTP server IP address was specified in
the DHCP message.
• Backup Configuration File—Enter the path and file name of the file to be
used when no configuration file name was specified in the DHCP message.
The window displays the following:
• Last Auto Configuration TFTP Server IP Address—Displays the IP
address of the TFTP server last used to perform auto configuration.
• Last Auto Configuration File Name—Displays the last file name used by the
switch in auto configuration.
page opens.
DHCP
The Last Auto Configuration TFTP Server IP Address and the Last Auto
Configuration File Name are compared with the information received from a
DHCP server in conjunction with receiving a configuration IP address for the
switch. In the event that these values do not match, the switch transfers the
configuration file from the TFTP server identified by the DHCP server into
the Startup Configuration file, and initiates a reboot. If the values match, no
action is taken.
STEP 3 Click Apply. The DHCP Auto Configuration feature is updated.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 33
Page 42
System Time
Network time synchronization is critical because every aspect of managing,
securing, planning, and debugging a network involves determining when events
occur. Time provides a frame of reference between all devices on the network.
Without synchronized time, accurately correlating log files between devices, for
instance when tracking security breaches or network usage, is not possible.
Problems affecting a large number of components can be nearly impossible to
track if timestamps in logs are inaccurate.
5
Time also reduces confusion in shared file systems, as it is important for the
modification times to be consistent, regardless of the machine on which the files
systems reside.
For these reasons, it is important that the time configured on the all devices on the
network be accurate.
NOTE The switch supports Simple Network Time Protocol (SNTP) and when enabled, the
switch dynamically synchronizes the switch time with the SNTP server time. The
switch operates only as an SNTP client, and cannot provide time services to other
devices.
This section describes the options for configuring system time, time zone, and
Daylight Savings Time (DST). It includes the following topics:
• System Time Options
• Configuring System Time
• Adding an SNTP Server
• Defining SNTP Authentication
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System Time
System Time Options
System Time Options
System time can be set manually by the user, dynamically by using an SNTP
server, or synchronized from the pc running the GUI. If an SNTP server is chosen,
the manual time settings are overwritten when communications with the server
are established.
As part of the boot process, the switch always configures the time, time zone, and
DST in some way. These parameters are obtained from DHCP, from the pc running
the GUI, from SNTP, from values set manually, or if all else fails from the factory
defaults.
Time
Time
5
The following methods are available for obtaining or setting the time on the switch:
• SNTP—Time can be received from time servers. SNTP that ensures
accurate network time synchronization of the switch up to the millisecond by
using an SNTP server for the clock source.
NOTE This method is recommended for the sake of accuracy.
• Manual—The user can manually set the time.
• From Browser—Time can be received from the time of the PC using
browser information. If this feature is enabled, the switch uses the system
time from the configuring computer, unless the time has been configured on
the switch manually by the user or SNTP server support is not available or
enabled.
After the time has been set by any of the three time sources, it is not set
again by the browser.
The configuration of time from browser is saved to the Running
Configuration file. You must copy the Running Configuration to the Startup
Configuration in order to enable the device to use the time from browser
after reboot. The time after reboot is set during the first WEB login to the
device.
When the user applies this feature for the first time, if the time was not
already set, the device sets the time from the browser.
The time from browser works with both HTTP and HTTPS connections.
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System Time
!
Configuring System Time
5
NOTE Receiving the time from the computer configuring the switch should
be the last resort, such as after a power outage when no other time source
is available.
Time Zone and Daylight Savings Time (DST)
Time Zone and Daylight Savings Time (DST)
The Time Zone and DST can be set on the switch in the following ways:
• Dynamic configuration of the switch through a DHCP server, where:
- Dynamic DST, when enabled and available, always takes precedence
over the manual configuration of DST.
- If the server supplying the source parameters fails, or dynamic
configuration is disabled by the user, the manual settings are used.
- Dynamic configuration of the time zone and DST continues after the IP
address lease time has expired.
• Manual configuration of the time zone and DST by the user becomes the
Operational time zone and DST, only if the dynamic configuration is
disabled or fails.
Configuring System Time
Use the
time source.
CAUTION The switch does not have an internal clock that updates this value. If the system
time is set manually and the switch is rebooted, the manual time settings must be
reentered.
To define system time:
System Time
page to configure the current time, time zone, DST, and the
STEP 1 Click Administration> Time Settings > System Time. The
opens.
STEP 2 Enter the parameters.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 36
System Time
page
Page 45
System Time
Configuring System Time
Clock Source Settings—Select the source used to set the system clock.
• Main Clock Source (SNTP Servers)—The system time is obtained from an
SNTP server. To use this feature, you must also add an SNTP server or
enable SNTP Broadcast mode by using the
enforce authentication of the SNTP sessions by using the
Authentication
layer 3 mode.
• Alternate Clock Source (PC via active HTTP/HTTPS sessions)—Select to
set the date and time from the configuring computer using the HTTP
protocol.
NOTE If Alternate Clock Source is selected, the time will be taken from the
PC running the GUI. Each time you log into the GUI, the time is taken from your
PC.
page. This feature does not function when the switch is in
SNTP Settings
page. Optionally,
SNTP
5
Manual Settings—Set the date and time manually. The local time is used when
there is no alternate source of time, such as an SNTP server:.
• Date—Enter the system date.
• Local Time—Enter the system time.
Time Zone Settings—The local time is used via DHCP or Time Zone offset.
• Get time zone from DHCP—Select to enable dynamic configuration of the
time zone and the DST from the DHCP server. Whether one or both of these
parameters can be configured depends on the information found in the
DHCP packet. If this option is enabled, you must also enable DHCP client on
the switch. To do this, set the IP Address Type to Dynamic in the IPv4
Interface page.
• Time Zone Offset—Select the difference in hours between Greenwich
Mean Time (GMT) and the local time. For example, the Time Zone Offset for
Paris is GMT +1, while the Time Zone Offset for New York is GMT – 5.
Daylight Savings Settings—Select how DST is defined:
• Daylight Savings—Check to enable daylight Savings Time.
• Time Zone Offs et—Enter the number of minutes offset from GMT ranging
from 1—1440. The default is 60.
• Daylight Savings Type—Click one of the following:
-
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 37
USA
—DST will be set according to the dates used in the USA
Page 46
System Time
Configuring System Time
-
European
Union and other countries that use this standard.
—DST will be set according to the dates used by the European
5
By Dates
-
USA or a European country. Enter the following parameters:
-
Recurring
parameters:
Selecting
• From—Day and time that DST starts.
• To —Day and time that DST ends.
Selecting
DST:
• From—Date when DST begins each year.
Day
-
Week
-
Month
-
Time
-
—DST will be set manually, typically for a country other than the
—DST occurs on the same date every year. Enter the following
By Dates
Recurring
—Day of the week on which DST begins every year.
—Week within the month from which DST begins every year.
—Month of the year in which DST begins every year.
—The time at which DST begins every year.
allows customization of the start and stop of DST:
allows further customization of the start and stop of
• To —Date when DST ends each year. For example, DST ends locally every
fourth Friday in October at 5:00 am. The parameters are:
Day
-
-
-
-
STEP 3 Click Apply. The system time values are defined, and the Running Configuration
file is updated.
The time settings are displayed in the Actual Time Details block.
—Day of the week on which DST ends every year.
Week
—Week within the month from which DST ends every year.
Month
Time
—Month of the year in which DST ends every year.
—The time at which DST ends every year.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 38
Page 47
System Time
Adding an SNTP Server
Adding an SNTP Server
Up to eight SNTP servers can be configured. In addition to configuring SNTP
server(s), enable this feature by using the
NOTE To specify an SNTP server by name, you must first configure DNS server(s) on the
switch (see the Defining DNS Servers section).
The switch supports the following modes:
• Broadcast—The SNTP server broadcasts the time, and the switch listens to
these broadcasts. When the switch is in this mode, there is no need to
define a Unicast SNTP server.
• Unicast SNTP Server Mode—The switch sends Unicast queries to the list of
manually-configured SNTP servers, and waits for a response.
5
SNTP Settings
page.
The switch supports having both modes active at the same time and selects the
best source of the parameters according to the closest stratum (distance from the
reference clock.).
To add an SNTP server:
STEP 1 Click Administration > Time Settings > SNTP Settings. The
opens.
This page displays the following information for each Unicast SNTP server:
• SNTP Server—SNTP server IP address. Up to eight SNTP servers can be
defined. The preferred server, or hostname, is chosen according to its
stratum level.
• Poll Interval—Displays whether polling is enabled or disabled.
• Authentication Key ID—Key Identification used to communicate between
the SNTP server and switch.
• Stratum Level—Distance from the reference clock expressed as a
numerical value. An SNTP server cannot be the primary server (stratum level
1) unless polling interval is enabled.
SNTP Settings
page
• Status—SNTP server status. The possible options are:
- Up—SNTP server is currently operating normally.
- Down—SNTP server is currently not available.
- Unknown—SNTP server is currently being searched for by the switch.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 39
Page 48
System Time
Adding an SNTP Server
5
-
In Process
time server (i.e. when first booting up the NTP server).
• Last Response—Date and time of the last time a response was received
from this SNTP server.
• Offset—The estimated offset of the server's clock relative to the local clock,
in milliseconds. The host determines the value of this offset using the
algorithm described in RFC 2030.
• Delay—The estimated round-trip delay of the server's clock relative to the
local clock over the network path between them, in milliseconds. The host
determines the value of this delay using the algorithm described in RFC
2030.
• Last Synchronized Server—Appears at the bottom of the other selections,
and displays the address of the SNTP server from which time was last taken.
—Occurs when the SNTP server has not fully trusted it's own
STEP 2 (Optional) Select SNTP Broadcast Reception > Enable to listen to SNTP
Broadcast synchronization packets for system time information. The system will
only display an SNTP server once a successful broadcast has been received. This
feature is not functional when the switch is in layer 3 mode.
STEP 3 Click Add to display the
STEP 4 Enter the following parameters:
• Server Definition—Select if the SNTP server is going to be identified by its
IP address or if you are going to chose a well-known SNTP server by name
from the list.
NOTE To specify a well-known SNTP server, the switch must be connected
to the Internet and configured with a DNS server or configured so that a DNS
server is identified by using DHCP. (See the Defining DNS Servers section.)
• IP Version—Select the version of the IP address: Version 6 or Version 4.
• IPv6 Address Type—Select the IPv6 address type (if IPv6 is used). The
options are
- Link Local—The IPv6 address uniquely identifies hosts on a single
network link. A link local address has a prefix of FE80, is not routable, and
can be used for communication only on the local network. Only one link
local address is supported. If a link local address exists on the interface,
this entry replaces the address in the configuration.
Add SNTP Server
page.
- Global—The IPv6 address is a global Unicast IPV6 type that is visible and
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 40
reachable from other networks.
Page 49
System Time
Defining SNTP Authentication
5
• Link Local Interface—Select the link local interface (if IPv6 Address Type
Link Local is selected) from the list.
• SNTP Server IP Address—Enter the SNTP server IP address. The format
depends on which address type was selected.
• SNTP Server—Select the name of the SNTP server from a list of well-known
SNTP servers. If other is chosen, enter name of SNTP server in the adjacent
field.
• Poll Interval—Select to enable polling of the SNTP server for system time
information. All SNTP servers that are registered for polling are polled, and
the clock is selected from the server with the lowest stratum level (distance
from the reference clock.) that is reachable. The server with the lowest
stratum is considered to be the primary server. The server with the next
lowest stratum is a secondary server, and so forth. If the primary server is
down, the switch polls all servers with the polling setting enabled, and
selects a new primary server with the lowest stratum.
• Authentication—Select the check box to enable authentication.
• Authentication Key ID—If authentication is enabled, select the value of the
key ID. (Create the authentication keys using the SNTP Authentication page.)
STEP 5 Click Apply. The STNP server is added, and you are returned to the main page.
Defining SNTP Authentication
The SNTP Authentication page enables configuration of the authentication keys
that are used when communicating with an SNTP server that requires
authentication. The authentication key is created on the SNTP server in a separate
process that depends on the type of SNTP server you are using. Consult with the
SNTP server system administrator for more detail on this.
After a key has been created, it must be bound to one or more relevant SNTP
servers to be authenticated. This authentication key can also be used for
authentication when receiving Broadcast synchronization.
SNTP sessions might require authentication. A Unicast SNTP server that requires
authentication must be bounded with an authentication key when it is added by
using the Add SNTP Server page.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 41
Page 50
System Time
Defining SNTP Authentication
STEP 1 Click Administration > Time Settings > SNTP Authentication. The SNTP
STEP 2 Select SNTP Authentication to require authentication of an SNTP session
STEP 3 Click Apply to update the switch.
5
To define SNTP authentication:
Authentication page opens.
between the switch and an SNTP server.
STEP 4 Click Add. The
STEP 5 Enter the following parameters:
• Authentication Key ID—Enter the number used to identify this SNTP
authentication key internally.
• Authentication Key—Enter the key used for authentication (up to eight
characters). The SNTP server must send this key for the switch to
synchronize to it.
• Trusted Key—Select the check box to allow the switch to receive broadcast
synchronization information only from a SNTP server by using this
authentication key.
STEP 6 Click Apply. The SNTP Authentication is defined, and the Running Configuration
file is updated.
Add SNTP Authentication
page opens.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 42
Page 51
General Administrative Information and
Operations
This section describes how to view system information and configure various
options on the switch.
It includes the following topics:
• System Information
6
• Switch Models
• Rebooting the Switch
• Monitoring the Fan Status and Temperature
• Defining Idle Session Timeout
• Pinging a Host
System Information
The System Summary page provides a graphic view of the switch, and displays
switch status, hardware information, firmware version information, general Powerover-Ethernet (PoE) status, and other items.
Displaying the System Summary
To view system information, click Status and Statistics > System Summary. The
System Summary page opens.
System Summary
The
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 43
page displays system and hardware information.
Page 52
General Administrative Information and Operations
System Information
System information:
• System Description—A description of the system.
• System Location—Physical location of the switch. Click Edit to go the
System Settings page to enter this value.
• System Contact—Name of a contact person. Click Edit to go the System
Settings page to enter this value.
• Host Name—Name of the switch. Click Edit to go the System Settings
page to enter this value. By default, the switch hostname is composed of
the word switch concatenated with the three least significant bytes of the
switch MAC address (the six furthest right hexadecimal digits).
• System Uptime—Time that has elapsed since the last reboot.
• Current Time—Current system time.
6
• Base MAC Address—Switch MAC address.
• Jumbo Frames—Jumbo frame support status. This support can be
enabled or disabled by using the Port Setting page.
NOTE Jumbo frames support takes affect only after it is enabled, and after
the switch is rebooted.
TCP/UDP Services Status:
• HTTP Service—Displays whether HTTP is enabled/disabled.
• HTTPS Service—Displays whether HTTPS is enabled/disabled.
• Edit—Clicking on this takes you to
Configuring Security
Hardware and firmware version information:
• Model Description—Switch model description.
• Serial Number—Serial number.
• PID VID—Part number and version ID.
for details.
TCP/UDP Services
page. See
• Firmware Version—Firmware version number of the software image.
• Firmware MD5 Checksum—MD5 checksum of the software image.
• Boot Version—Boot version number.
• Boot MD5 Checksum—MD5 checksum of the boot version.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 44
Page 53
General Administrative Information and Operations
System Information
• Locale—Locale of the first language. (This is always English.)
• Language Version—Language package version of the first or English
language.
• Language MD5 Checksum—MD5 checksum of the language file.
• Locale—Locale of the second language.
• Language Version—Language package version of the second language.
• Language MD5 Checksum—MD5 checksum of the secondary language
file.
General PoE Status on models with PoE capability:
• Maximum Available PoE Power (W)—Maximum available power that can
be delivered by the PoE.
6
• Total PoE Power Consumption (W)—Total PoE power delivered to
connected PoE devices.
• PoE Power Mode—Port Limit or Class Limit.
Configuring the System Settings
To enter system settings:
STEP 1 Click Administration > System Settings. The System Settings page opens.
STEP 2 Modify the system settings.
• System Description—Displays a description of the switch.
• System Location—Enter the location where the switch is physically located.
• System Contact—Enter the name of a contact person.
• Host Name—Select the host name:
- Use Default—The default hostname (System Name) of these switches is:
switch123456, where 123456 represents the last three bytes of the
switch MAC address in hex format.
- User Defined—Enter the hostname. Use only letters, digits, and hyphens.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 45
Host names cannot begin or end with a hyphen. No other symbols,
punctuation characters, or blank spaces are permitted (as specified in
RFC1033, 1034, 1035).
Page 54
General Administrative Information and Operations
Switch Models
• Custom Login Screen Settings—If you want text to be displayed on the
Login
page, enter the text in the Login Banner text box. Click Preview to
view the results.
NOTE When the user defines a login banner from the web interface, it also
activates the banner for the CLI interfaces (Console, Telnet, and SSH).
STEP 3 Click Apply to set the values in the Running Configuration file.
Switch Models
All models can be fully managed through the web-based switch configuration
utility.
6
NOTE Acronyms used for port descriptions have varied across software versions. In
Smart Switch Models
Model
Name
Product ID
(PID)
Layer 2 is the default mode of operation for all devices. In Layer 2 mode, the
switch forwards packets as a VLAN aware bridge. In Layer 3 mode, the switch
performs both IPv4 routing and VLAN aware bridging.
When the switch operates in Layer 3 mode, the VLAN Rate Limit, and QoS policers
are not operational. Other QoS Advanced mode features are operational.
Fast Ethernet (10/100) ports are designated as FE and Gigabit Ethernet ports (10/
100/1000) are designated as GE in the table below.
release 1.0, 'e' was used for fast Ethernet, 'g' for 'gigabit Ethernet' in the GUI.
The following table describes the various models, the number and type of ports
on them and the number of ports that support PoE.
Description of Ports on Device Power
Dedicated
to PoE
No. of Ports
that Support
PoE
SG200-18 SLM2016T 16 GE ports + 2 GE special-purpose combo
ports
SG200-26 SLM2024T 24 GE ports + 2 GE special-purpose combo-
ports
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 46
Page 55
General Administrative Information and Operations
Switch Models
Smart Switch Models (Continued)
6
Model
Name
SG20026P
SG200-50 SLM2048T 48 GE ports + 2 GE special-purpose combo-
SG20050P
SF200-24 SLM224GT 24 FE ports + 2 GE special-purpose combo-
SF20024P
Product ID
(PID)
SLM2024PT 24 GE ports + 2 GE special-purpose combo-
SLM2048PT 48 GE ports + 2 GE special-purpose combo-
SLM224PT 24 FE ports + 2 GE special-purpose combo-
Description of Ports on Device Power
ports
ports
ports
ports
ports
No. of Ports
Dedicated
to PoE
100W 12 ports
180W 24 ports
100W 12 ports
that Support
PoE
FE1-FE6, FE13
- FE18
FE1-FE12,
FE25 - FE36
FE1- FE6,
FE13 - FE18
SF200-48 SLM248GT 48 FE ports + 2 GE special-purpose combo-
ports
SF20048P
SLM248PT FE1-FE48, GE1-GE4. 48 FE ports + 2 GE
special-purpose combo-ports
180W 24 ports
FE1- FE12,
FE25 - FE36
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 47
Page 56
General Administrative Information and Operations
!
Rebooting the Switch
Rebooting the Switch
Some configuration changes, such as enabling jumbo frame support, require the
system to be rebooted before they take effect. However, rebooting the switch
deletes the Running Configuration, so it is critical that the Running Configuration is
saved to the Startup Configuration before the switch is rebooted. Clicking Apply
does not save the configuration to the Startup Configuration. For more information
on files and file types, see the Files and File Types section in the Managing
System Files section.
You can backup the configuration by using Administration > Save/Copy
Configuration or click Save at the top of the window. You can also upload the
configuration from a remote device see the Downloading or Backing-up a
Configuration or Log section in the Managing System Files section.
To reboot the switch:
6
STEP 1 Click Administration > Reboot. The Reboot page
STEP 2 Click one of the Reboot buttons to reboot the switch.
• Reboot—Reboots the switch. Since any unsaved information in the Running
Configuration s is discarded when the switch is rebooted, you must click
Save in the upper-right corner of any window to preserve current
configuration across the boot process. (If the Save option is not displayed,
the Running Configuration matches the Startup Configuration and no action
is necessary.)
• Reboot to Factory Defaults—Reboots the switch by using factory default
configuration. This process erases the Startup Configuration file; any
settings that are not saved to another file are cleared when this action is
selected.
CAUTION DHCP Auto Configuration is enabled by default in the factory settings. In order to
properly reboot the switch to factory defaults, you need to disable the DHCP Auto
Configuration (for example connect the switch by local terminal and run the
appropriate CLI to disable the auto configuration feature) so the switch does not
automatically download a configuration from a local server.
opens.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 48
Page 57
General Administrative Information and Operations
Monitoring the Fan Status and Temperature
Monitoring the Fan Status and Temperature
The Health page displays the switch fan status and temperature on the following
devices:
SG200-50P
The page displays the fan status only on the rest of the devices.
To view the switch health parameters, click Status and Statistics > Health. The
Health
page opens.
6
Health
The
• Fan Status—Fan status. OK indicates that the fans are operating normally.
• Te mp e rat ur e—The internal temperature of the switch.
page displays the following fields:
Defining Idle Session Timeout
The
Idle Session Timeout
session can remain idle before it times out and the user must login again to
reestablish the session.
• HTTP Session Timeout
• HTTPS Session Timeout
To set the idle session timeout of an HTTP or HTTPS session:
STEP 1 Click Administration > Idle Session Timeout. The
opens.
configures the time interval during which the HTTP
Idle Session Timeout
page
STEP 2 Select the timeout for the session from the corresponding list. The default
timeouts are 10 minutes.
STEP 3 Click Apply to set the configuration settings on the switch.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 49
Page 58
General Administrative Information and Operations
Pinging a Host
Pinging a Host
Ping is a utility used to test if a remote host can be reached and to measure the
round-trip time for packets sent from the switch to a destination device.
Ping operates by sending Internet Control Message Protocol (ICMP) echo request
packets to the target host and waiting for an ICMP response, sometimes called a
pong. It measures the round-trip time and records any packet loss.
To ping a host:
6
STEP 1 Click Administration > Ping. The Ping page
STEP 2 Configure ping by entering the fields:
• Host Definition—Select whether to specify hosts by their IP address or
name.
• IP Version—If the host is identified by its IP address, select either IPv4 or
IPv6, to indicate that it will be entered in the selected format.
• IPv6 Address Type—Select Link Local or Global as the type of IPv6
address to enter.
- Link Local—The IPv6 address uniquely identifies hosts on a single
network link. A link local address has a prefix of FE80, is not routable, and
can be used for communication only on the local network. Only one link
local address is supported. If a link local address exists on the interface,
this entry replaces the address in the configuration.
- Global—The IPv6 address is a global Unicast IPV6 type that is visible and
reachable from other networks.
• Link Local Interface—If the IPv6 address type is Link Local, select from
where it is received.
opens.
• Host IP Address/Name—Address or host name of the device to be pinged.
Whether this is an IP address or host name depends on the Host Definition.
• Ping Interval—Length of time the system waits between ping packets. Ping
is repeated a “Number of Pings” number of times, whether it succeeds or
not. Choose to use the default or specify your own value.
• Number of Pings—The number of times the ping operation will be
performed. Choose to use the default or specify your own value.
• Status—Displays whether the ping succeeded or failed.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 50
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General Administrative Information and Operations
Pinging a Host
STEP 3 Click Activate Ping to ping the host. The ping status is displayed and another
message is added to the list of messages, indicating the result of the ping
operation.
STEP 4 View the results of ping in the Ping Counters and Status section of the page.
6
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 51
Page 60
Configuring Discovery
This section provides information for configuring Discovery.
It includes the following topics:
• Configuring Bonjour Discovery
• LLDP and CDP
• Configuring LLDP
7
• Configuring CDP
Configuring Bonjour Discovery
As a Bonjour client, the switch periodically broadcasts Bonjour Discovery protocol
packets to directly-connected IP subnet(s), advertising its existence and the
services that it provides, for example HTTP or HTTPS. (Use the
UDP
Services page to enable or disable the switch services.) The switch can be
discovered by a network management system or other third-party applications.
By default, Bonjour is enabled and runs on the Management VLAN. The Bonjour
console automatically detects the device and displays it.
Bonjour for a System in Layer 2 Mode
Bonjour Discovery can only be enabled globally, and not on a per-port or perVLAN basis. The switch advertises the services enabled by the administrator.
When Bonjour Discovery and IGMP are both enabled, the IP Multicast address of
Bonjour is displayed on the Adding IP Multicast Group Addresses.
Security > TCP/
When Bonjour Discovery is disabled, the switch stops service type
advertisements and does not respond to requests for service from network
management applications.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 52
Page 61
Configuring Discovery
LLDP and CDP
STEP 1 Click Administration > Discovery - Bonjour. The Discovery - Bonjour page
STEP 2 Select Enable to enable Bonjour Discovery globally on the switch.
STEP 3 Click Apply. Bonjour is enabled or disabled on the switch according to the
7
By default, Bonjour is enabled on all interfaces that are members of the
Management VLAN.
To globally enable Bonjour:
opens.
selection.
LLDP and CDP
LLDP (Link Layer Discovery Protocol) and CDP (Cisco Discovery Protocol) are link
layer protocols for directly connected LLDP and CDP capable neighbors to
advertise themselves and their capabilities to each other. By default, the switch
sends an LLDP/CDP advertisement periodically to all its interfaces and terminates
and processes incoming LLDP and CDP packets as required by the protocols. In
LLDP and CDP, advertisements are encoded as TLV (Type, Length, Value) in the
packet.
The following are additional points about CDP/LLDP configuration:
• CDP/LLDP can be globally enabled or disabled and enabled/disabled per
port. The CDP/LLDP capability of a port is relevant only if CDP/LLDP is
globally enabled.
• If CDP/LLDP is globally enabled, the switch filters out incoming CDP/LLDP
packets from ports that are CDP/LLDP-disabled.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 53
Page 62
Configuring Discovery
LLDP and CDP
7
• If CDP/LLDP is globally disabled, the switch can be configured to discard,
VLAN-aware flooding, or VLAN-unaware flooding of all incoming CDP/LLDP
packets. VLAN-aware flooding floods an incoming CDP/LLDP packet to the
VLAN where the packet is received excluding the ingress port. VLANunaware flooding floods an incoming CDP/LLDP packet to all the ports
excluding the ingress port. The default is to discard CDP/LLDP packets
when CDP/LLDP is globally disabled. You can configure the discard/
flooding of incoming CDP and LLDP packets from the CDP Properties page
and the LLDP Properties page respectively.
• Auto Smartport requires CDP and/or LLDP to be enabled. Auto Smartport
automatically configures an interface based on the CDP/LLDP
advertisement received from the interface.
• CDP and LLDP end devices, such as IP phones, learn the voice VLAN
configuration from CDP and LLDP advertisements. By default, the switch is
enabled to send out CDP and LLDP advertisement based on the voice
VLAN configured at the switch. Refer to the Voice VLAN and Auto Voice
VLAN sections for details.
NOTE CDP/LLDP does not distinguish if a port is in a LAG. If there are multiple ports in a
LAG, CDP/LLDP transmit packets on each port without taking into account the fact
that the ports are in a LAG.
The operation of CDP/LLDP is independent of the STP status of an interface.
If 802.1x port access control is enabled at an interface, the switch will transmit and
receive CDP/LLDP packets to and from the interface only if the interface is
authenticated and authorized.
If a port is the target of mirroring, then for CDP/LLDP it is considered down.
NOTE CDP and LLDP are link layer protocols for directly connected CDP/LLDP capable
devices to advertise themselves and their capabilities. In deployments where the
CDP/LLDP capable devices are not directly connected and are separated with
CDP/LLDP incapable devices, the CDP/LLDP capable devices may be able to
receive the advertisement from other device(s) only if the CDP/LLDP incapable
devices flood the CDP/LLDP packets they receives. If the CDP/LLDP incapable
devices perform VLAN-aware flooding, then CDP/LLDP capable devices can hear
each other only if they are in the same VLAN. It should be noted that a CDP/LLDP
capable device may receive advertisement from more than one device if the CDP/
LLDP incapable devices flood the CDP/LLDP packets.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 54
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Configuring Discovery
Configuring LLDP
Configuring LLDP
This section describes how to configure LLDP. It contains the following topics:
• LLDP Overview
• Setting LLDP Properties
• Editing LLDP Port Settings
• LLDP MED
• Configuring LLDP MED Port Settings
• Displaying LLDP Port Status
• Displaying LLDP Local Information
7
• Displaying LLDP Neighbors Information
• Accessing LLDP Statistics
• LLDP Overloading
LLDP Overview
The Link Layer Discovery Protocol (LLDP) is a protocol that enables network
managers to troubleshoot and enhance network management in multi-vendor
environments. LLDP standardizes methods for network devices to advertise
themselves to other systems, and to store discovered information.
LLDP enables a device to advertise its identification, configuration, and
capabilities to neighboring devices that then store the data in a Management
Information Base (MIB). The network management system models the topology of
the network by querying these MIB databases.
LLDP is a link layer protocol. By default, the switch terminates and processes all
incoming LLDP packets as required by the protocol.
The LLDP protocol has an extension called LLDP Media Endpoint Discovery
(LLDP-MED), which provides and accepts information from media endpoint
devices such as VoIP phones and video phones. For further information about
LLDP-MED, see LLDP MED.
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 55
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Configuring Discovery
Configuring LLDP
7
LLDP Configuration Workflow
Following are examples of actions that can be performed with the LLDP feature
and in a suggested order. You can refer to the LLDP/CDP section for additional
guidelines on LLDP configuration. LLDP configuration pages are accessible under
the Administration > Discovery LLDP menu.
1. Enter LLDP global parameters, such as the time interval for sending LLDP
updates using the
LLDP Properties
page.
2. Configure LLDP per port by using the
interfaces can be configured to receive/transmit LLDP PDUs, send SNMP
notifications, specify which TLVs to advertise, and advertise the switch's
management address.
3. Create LLDP MED network policies by using the
page.
4. Associate LLDP MED network policies and the optional LLDP-MED TLVs to the
desired interfaces by using the
5. If Auto Smartport is to detect the capabilities of LLDP devices, enable LLDP in
the Smartport Properties page.
6. Display overloading information by using the
LLDP MED Port Settings
Port Settings
LLDP Overloading
page On this page,
LLDP MED Network Policy
page.
page.
Setting LLDP Properties
The
LLDP Properties
include enabling/disabling the feature globally and setting timers.
To enter LLDP properties:
page enables entering LLDP general parameters. These
STEP 1 Click Administration > Discovery - LLDP > Properties. The LLDP Properties
page opens.
STEP 2 Enter the parameters.
• LLDP Status—Select to enable LLDP on the switch (selected by default).
• LLDP PDU Action—If LLDP is not enabled, select the action to be taken if a
packet that matches the selected criteria is received:
-
-
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Filtering
Flooding
—Delete the packet.
—Forward the packet to all VLAN members.
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• TLV Advertise Interval—Enter the rate in seconds at which LLDP
advertisement updates are sent or use the default.
• Topology Change System Log Notification Interval—Enter the minimum
time interval between system log notifications.
• Hold Multiplier—Enter the amount of time that LLDP packets are held before
the packets are discarded, measured in multiples of the TLV Advertise
Interval. For example, if the TLV Advertise Interval is 30 seconds, and the
Hold Multiplier is 4, then the LLDP packets are discarded after 120 seconds.
• Reinitializing Delay—Enter the time interval in seconds that passes
between disabling and reinitializing LLDP, following an LLDP enable/disable
cycle.
• Transmit Delay—Enter the amount of time in seconds that passes between
successive LLDP frame transmissions due to changes in the LLDP local
systems MIB.
For a description of LLDP MED, refer to the LLDP MED Network Policy section.
STEP 3 In the Fast Start Repeat Count field, enter the number of times LLDP packets are
sent when the LLDP-MED Fast Start mechanism is initialized. This occurs when a
new endpoint device links to the switch.
STEP 4 Click Apply. The LLDP properties are added to the Running Configuration file.
Editing LLDP Port Settings
Use the
port, and to select the TLVs included in LLDP PDUs.
The LLDP-MED TLVs to be advertised can be selected in the LLDP MED Port
Settings page, and the management address TLV of the switch may be
configured.
To define the LLDP port settings:
STEP 1 Click Administration > Discovery - LLDP > Port Settings. The
opens.
Port Settings
page to activate LLDP and remote log server notification per
Port Settings
page
This page displays the port LLDP information.
STEP 2 Select a port and click Edit. The Edit LLDP Port Settings page opens.
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7
This page provides the following fields:
• Interface—Select the port to be defined.
• Administrative Status—Select the LLDP publishing option for the port. The
values are:
- Tx Onl y —Publishes but does not discover.
- Rx Only—Discovers but does not publish.
- Tx & R x—Publishes and discovers.
- Disable—Indicates that LLDP is disabled on the port.
• System Log Notification—Select Enable to notify notification recipients
that there has been a topology change.
The time interval between notifications is entered in the Topology Change
System Log Notification Interval field in the
• Available Optional TLVs—Select the information to be published by the
switch by moving the TLV to the Selected Optional TLVs list. The available
TLVs contain the following information:
- Port Description—Information about the port, including manufacturer,
product name and hardware/software version.
- System Name—System's assigned name (in alpha-numeric format). The
value equals the sysName object.
- System Description—Description of the network entity (in alpha-
numeric format). This includes the system's name and versions of the
hardware, operating system, and networking software supported by the
switch. The value equals the sysDescr object.
- System Capabilities—Primary functions of the switch, and whether or
not these functions are enabled in the switch. The capabilities are
indicated by two octets. Bits 0 through 7 indicate Other, Repeater, Bridge,
WLAN AP, Router, Telephone, DOCSIS cable device, and station
respectively. Bits 8 through 15 are reserved.
LLDP Properties
page.
- 802.3 MAC-PHY—Duplex and bit rate capability and the current duplex
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and bit rate settings of the sending device. It also indicates whether the
current settings are due to auto-negotiation or manual configuration.
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- 802.3 Link Aggregation—Whether the link (associated with the port on
which the LLDP PDU is transmitted) can be aggregated. It also indicates
whether the link is currently aggregated, and if so, provides the
aggregated port identifier.
- 802.3 Maximum Frame—Maximum frame size capability of the MAC/
PHY implementation.
The following fields relate to the Management Address:
• Advertisement Mode—Select one of the following ways to advertise the IP
management address of the switch:
- Auto Advertise—Specifies that the software would automatically
choose a management address to advertise from all the IP addresses of
the product. In case of multiple IP addresses the software chooses the
lowest IP address among the dynamic IP addresses. If there are no
dynamic addresses, the software chooses the lowest IP address among
the static IP addresses.
- None—Do not advertise the management IP address.
- Manual Advertise—Select this option and the management IP address to
be advertised.
• IP Address—If Manual Advertise was selected, select the Management IP
address from the addresses provided.
STEP 3 Enter the relevant information, and click Apply. The port settings are modified, and
the Running Configuration file is updated.
LLDP MED
LLDP Media Endpoint Discovery
the following additional capabilities to support media endpoint devices. Some of
the features of the LLDP Med Network Policy are:
• Enables the advertisement and discovery of network polices for real-time
applications such as voice and/or video.
(LLDP-MED) is an extension of LLDP that provides
• Device location discovery to allow creation of location databases and, in the
case of Voice over Internet Protocol (VoIP), Emergency Call Service (E-911)
by using IP Phone location information.
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• Troubleshooting information. LLDP MED sends alerts to network managers
upon:
- Port speed and duplex mode conflicts
- QoS policy misconfigurations
Setting LLDP MED Network Policy
An LLDP-MED network policy is a related set of configuration settings for a
specific real-time application such as voice, or video. A network policy, if
configured, will be included into the outgoing LLDP packets to the attached LLDP
media endpoint device. The media endpoint device should send its traffic as
specified in the network policy it receives. For example, a policy can be created
for VoIP traffic that instructs VoIP phone to:
• Send voice traffic on VLAN 10 as tagged packet and with 802.1p priority 5.
• Send voice traffic with DSCP 46
Network policies are associated with ports by using the LLDP MED Port Settings
page. An administrator can manually configure one or more network policies and
the interfaces where the policies are to be sent. It is the administrator's
responsibility to manually create the VLANs and their port memberships
according to the network policies and their associated interfaces.
In addition, an administrator can instruct the switch to automatically generate and
advertise a network policy for voice application based on the voice VLAN
maintained by the switch. Refer the Auto Voice VLAN section for details on how
the switch maintains its voice VLAN.
To define an LLDP MED network policy:
STEP 1 Click Administration > Discovery - LLDP > LLDP MED Network Policy. The
LLDP MED Network Policy
This page displays previously-created network policies.
STEP 2 Select Auto for LLDP-MED Network Policy for Voice Application if the switch is to
automatically generate and advertise a network policy for voice application based
on the voice VLAN maintained by the switch.
page opens.
NOTE When this box is checked, the user may not manually configure a
voice network policy.
STEP 3 Click Apply to add this to the Running Configuration file.
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STEP 4 To define a new policy, click Add and the
opens.
STEP 5 Enter the values.
• Network Policy Number—Select the number of the policy to be created.
• Application—Select the type of application (type of traffic) for which the
network policy is being defined:
• VLAN ID—Enter the VLAN ID to which the traffic should be sent.
• VLAN Tag—Select whether the traffic is Tagged or Untagged.
• User Priority—Select the traffic priority applied to traffic defined by this
network policy. This is the CoS value.
• DSCP Value—Select the DSCP value to associate with application data
sent by neighbors. This informs them how they should mark the application
traffic they send to the switch.
STEP 6 Click Apply. The network policy is defined.
NOTE You must manually configure the interfaces to include the desired
manually defined network policies for the outgoing LLDP packets using the
LLDP MED Port Settings.
Add LLDP MED Network Policy
page
Configuring LLDP MED Port Settings
The LLDP MED Port Settings page enables the selection of the LLDP-MED TLVs
and/or the network policies to be included in the outgoing LLDP advertisement for
the desired interfaces. Network Policies are configured using the LLDP MED
Network Policy page.
NOTE If LLDP-MED Network Policy for Voice Application (LLDP-MED Network Policy
Page) is Auto and Auto Voice VLAN is in operation, then the switch will automatically
generate an LLDP-MED Network Policy for Voice Application for all the ports that
are LLDP-MED enabled and are members of the voice VLAN.
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Configuring Discovery
Configuring LLDP
STEP 1 Click Administration > Discovery - LLDP > LLDP MED Port Settings. The LLDP
STEP 2 The message at the top of the page indicates whether the generation of the LLDP
STEP 3 To associate additional LLDP MED TLV and/or one or more user-defined LLDP
STEP 4 Enter the parameters.
7
To configure LLDP MED on each port:
MED Port Settings page opens.
This page displays LLDP MED settings, including enabled TLVs, for all ports.
MED Network Policy for the voice application is automatic or not (see LLDP
Overview). Click on the link to change the mode.
MED Network Policies to a port, select it, and click Edit. The Edit LLDP MED Port
Settings page opens.
• Interface—Select the interface to configure.
• LLDP MED Status—Enable/disable LLDP MED on this port.
• System Log Notification—Select whether the log notification is sent on a
per-port basis, when an end station that supports MED has been discovered.
• Available Optional TLVs—Select the TLVs that can be published by the
switch by moving them to the Selected Optional TLVs list.
• Available Network Policies—Select the LLDP MED policies that will be
published by LLDP by moving them to the Selected Network Policies list.
These were created in the
or more user defined network polices in the advertisement, you must also
select
NOTE The following fields must be entered in hexadecimal characters in the
exact data format that is defined in the LLDP-MED standard (ANSI-TIA1057_final_for_publication.pdf).
• Location Coordinate—Enter the coordinate location to be published by
LLDP.
• Location Civic Address—Enter the civic address to be published by LLDP.
• Location (ECS) ELIN—Enter the Emergency Call Service (ECS) ELIN
location to be published by LLDP.
Network Policy
LLDP MED Network Policy
from the Available Optional TLVs.
page. To include one
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Configuring Discovery
Configuring LLDP
STEP 5 Click Apply. The LLDP MED port settings are modified, and the Running
Configuration file is updated.
Displaying LLDP Port Status
The
LLDP Port Status Table
port.
• To view the LLDP port status, click Administration > Discovery - LLDP >
LLDP Port Status. The
• Click LLDP Local Information Details to see the details of the LLDP and
LLDP-MED TLVs sent to the neighbor.
• Click LLDP Neighbor Information Details to see the details of the LLDP and
LLDP-MED TLVs received from the neighbor.
page displays the LLDP global information for every
LLDP Port Status
page opens.
7
LLDP Port Status Global Information
LLDP Port Status Global Information
• Chassis ID Subtype—Type of chassis ID (for example, MAC address).
• Chassis ID—Identifier of chassis. Where the chassis ID subtype is a MAC
address, the MAC address of the switch is displayed.
• System Name—Name of switch.
• System Description—Description of the switch (in alpha-numeric format).
• Supported System Capabilities—Primary functions of the device, such as
Bridge, WLAN AP, or Router.
• Enabled System Capabilities—Primary enabled function(s) of the device.
• Port ID Subtype—Type of the port identifier that is shown.
LLDP Port Status Table
LLDP Port Status Table
• Interface—Port identifier.
• LLDP Status—LLDP publishing option.
• LLDP MED Status—Enabled or disabled.
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• Local PoE—Local PoE information advertised.
• Remote PoE—PoE information advertised by the neighbor.
• # of neighbors—Number of neighbors discovered.
• Neighbor Capability of 1st Device—Displays the primary functions of the
neighbor, for example: Bridge or Router.
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Displaying LLDP Local Information
To view the LLDP local port status advertised on a port:
STEP 1 Click Administration > Discovery - LLDP > LLDP Local Information. The
Local Information
STEP 2 On the bottom of the page, click LLDP Port Status Table.
Click LLDP Local Information Details to see the details of the LLDP and LLDPMED
TLVs sent to the neighbor.
Click LLDP Neighbor Information Details to see the details of the LLDP and LLDPMED TLVs received from the neighbor.
STEP 3 Select the desired port from the Port list.
This page provides the following fields:
Global
• Chassis ID Subtype—Type of chassis ID. (For example the MAC address.)
• Chassis ID—Identifier of chassis. Where the chassis ID subtype is a MAC
address, the MAC address of the switch is displayed.
• System Name—Name of switch.
• System Description—Description of the switch (in alpha-numeric format).
page opens.
LLDP
• Supported System Capabilities—Primary functions of the device, such as
Bridge, WLAN AP, or Router.
• Enabled System Capabilities—Primary enabled function(s) of the device.
• Port ID Subtype—Type of the port identifier that is shown.
• Port ID—Identifier of port.
• Port Description—Information about the port, including manufacturer,
product name and hardware/software version.
Management Address
Displays the table of addresses of the local LLDP agent. Other remote managers
can use this address to obtain information related to the local device. The address
consists of the following elements:
• Address Subtype—Type of management IP address that is listed in the
Management Address field, for example, IPv4.
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• Address—Returned address most appropriate for management use, .
• Interface Subtype—Numbering method used for defining the interface
number.
• Interface Number—Specific interface associated with this management
address.
MAC/PHY Details
• Auto-Negotiation Supported—Port speed auto-negotiation support status.
• Auto-Negotiation Enabled—Port speed auto-negotiation active status.
• Auto-Negotiation Advertised Capabilities—Port speed auto-negotiation
capabilities, for example, 1000BASE-T half duplex mode, 100BASE-TX full
duplex mode.
• Operational MAU Type—Medium Attachment Unit (MAU) type. The MAU
performs physical layer functions, including digital data conversion from the
Ethernet interfaces’ collision detection and bit injection into the network, for
example, 100BASE-TX full duplex mode.
802.3 Details
• 802.3 Maximum Frame Size—The maximum supported IEEE 802.3 frame
size.
802.3 Link Aggregation
• Aggregation Capability—Indicates whether the interface can be
aggregated.
• Aggregation Status—Indicates whether the interface is aggregated.
• Aggregation Port ID—Advertised aggregated interface ID.
802.3 Energy Efficient Ethernet (EEE) (If device supports EEE)
• Local Tx—Indicates the time (in micro seconds) that the transmitting link
partner waits before it starts transmitting data after leaving Low Power Idle
(LPI mode).
• Local Rx—Indicates the time (in micro seconds) that the receiving link
partner requests that the transmitting link partner waits before transmission
of data following Low Power Idle (LPI mode).
• Remote Tx Echo—Indicates the local link partner’s reflection of the remote
link partner’s Tx value.
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• Remote Rx Echo—Indicates the local link partner’s reflection of the remote
link partner’s Rx value.
MED Details
• Capabilities Supported—MED capabilities supported on the port.
• Current Capabilities—MED capabilities enabled on the port.
• Device Class—LLDP-MED endpoint device class. The possible device
classes are:
Endpoint Class 1
-
LLDP services.
Endpoint Class 2
-
streaming capabilities, as well as all Class 1 features.
Endpoint Class 3
-
Class 1 and Class 2 features plus location, 911, Layer 2 switch support,
and device information management capabilities.
• PoE Device Type—Port PoE type, for example, powered.
• PoE Power Source—Port power source.
• PoE Power Priority—Port power priority.
• PoE Power Value—Port power value.
• Hardware Revision—Hardware version.
• Firmware Revision—Firmware version.
• Software Revision—Software version.
• Serial Number—Device serial number.
—Indicates a generic endpoint class, offering basic
—Indicates a media endpoint class, offering media
—Indicates a communications device class, offering all
• Manufacturer Name—Device manufacturer name.
• Model Name—Device model name.
• Asset ID—Asset ID.
Location Information
• Civic—Street address.
• Coordinates—Map coordinates: latitude, longitude, and altitude.
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• ECS ELIN—Emergency Call Service (ECS) Emergency Location
Identification Number (ELIN).
Network Policy Table
• Application Type—Network policy application type, for example, Voice.
• VLAN ID—VLAN ID for which the network policy is defined.
• VLAN Type—VLAN type for which the network policy is defined. The
possible field values are:
Tagged
-
Untagged
-
• User Priority—Network policy user priority.
• DSCP—Network policy DSCP.
—Indicates the network policy is defined for tagged VLANs.
—Indicates the network policy is defined for untagged VLANs.
Displaying LLDP Neighbors Information
The
LLDP Neighbors Information
from neighboring devices.
After timeout (based on the value received from the neighbor Time To Live TLV
during which no LLDP PDU was received from a neighbor), the information is
deleted.
To view the LLDP neighbors information:
STEP 1 Click Administration > Discovery - LLDP > Neighbors Information. The
Neighbors Information
page opens.
page displays information that was received
LLDP
This page displays the following fields:
• Local Port—Number of the local port to which the neighbor is connected.
• Chassis ID Subtype—Type of chassis ID (for example, MAC address).
• Chassis ID—Identifier of the 802 LAN neighboring device's chassis.
• Port ID Subtype—Type of the port identifier that is shown.
• Port ID—Identifier of port.
• System Name—Published name of the switch.
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• Time to Live—Time interval (in seconds) after which the information for this
neighbor is deleted.
STEP 2 Select a local port, and click Details. The
This page displays the following fields:
Port Details
• Local Port—Port number.
• MSAP Entry—Device Media Service Access Point (MSAP) entry number.
Basic Details
• Chassis ID Subtype—Type of chassis ID (for example, MAC address).
• Chassis ID—Identifier of the 802 LAN neighboring device chassis.
• Port ID Subtype—Type of the port identifier that is shown.
• Port ID—Identifier of port.
• Port Description—Information about the port, including manufacturer,
product name and hardware/software version.
• System Name—Name of system that is published.
• System Description—Description of the network entity (in alpha-numeric
format). This includes the system name and versions of the hardware,
operating system, and networking software supported by the device. The
value equals the sysDescr object.
Neighbors Information
page opens.
• Supported System Capabilities—Primary functions of the device. The
capabilities are indicated by two octets. Bits 0 through 7 indicate Other,
Repeater, Bridge, WLAN AP, Router, Telephone, DOCSIS cable device, and
station respectively. Bits 8 through 15 are reserved.
• Enabled System Capabilities—Primary enabled function(s) of the device.
Management Address Table
• Address Subtype—Managed address subtype, for example, MAC or IPv4.
• Address—Managed address.
• Interface Subtype—Port subtype.
• Interface Number—Port number.
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MAC/PHY Details
• Auto-Negotiation Supported—Port speed auto-negotiation support status.
The possible values are True and False.
• Auto-Negotiation Enabled—Port speed auto-negotiation active status. The
possible values are True and False.
• Auto-Negotiation Advertised Capabilities—Port speed auto-negotiation
capabilities, for example, 1000BASE-T half duplex mode, 100BASE-TX full
duplex mode.
• Operational MAU Type—Medium Attachment Unit (MAU) type. The MAU
performs physical layer functions, including digital data conversion from the
Ethernet interfaces’ collision detection and bit injection into the network, for
example, 100BASE-TX full duplex mode.
802.3 Power via MDI
• MDI Power Support Port Class—Advertised power support port class.
• PSE MDI Power Support—Indicates if MDI power is supported on the port.
• PSE MDI Power State—Indicates if MDI power is enabled on the port.
• PSE Power Pair Control Ability—Indicates if power pair control is
supported on the port.
• PSE Power Pair—Power pair control type supported on the port.
• PSE Power Class—Advertised power class of the port.
802.3 Details
• 802.3 Maximum Frame Size—Advertised maximum frame size that is
supported on the port.
802.3 Link Aggregation
• Aggregation Capability—Indicates if the port can be aggregated.
• Aggregation Status—Indicates if the port is currently aggregated.
• Aggregation Port ID—Advertised aggregated port ID.
802.3 Energy Efficient Ethernet (EEE)
• Local Tx—Indicates the time (in micro seconds) that the transmitting link
partner waits before it starts transmitting data after leaving Low Power Idle
(LPI mode).
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• Local Rx—Indicates the time (in micro seconds) that the receiving link
partner requests that the transmitting link partner waits before transmission
of data following Low Power Idle (LPI mode).
• Remote Tx Echo—Indicates the local link partner’s reflection of the remote
link partner’s Tx value.
• Remote Rx Echo—Indicates the local link partner’s reflection of the remote
link partner’s Rx value.
MED Details
• Capabilities Supported—MED capabilities enabled on the port.
• Current Capabilities—MED TLVs advertised by the port.
• Device Class—LLDP-MED endpoint device class. The possible device
classes are:
- Endpoint Class 1—Indicates a generic endpoint class, offering basic
LLDP services.
- Endpoint Class 2—Indicates a media endpoint class, offering media
streaming capabilities as well as all Class 1 features.
- Endpoint Class 3—Indicates a communications device class, offering all
Class 1 and Class 2 features plus location, 911, Layer 2 switch support
and device information management capabilities.
• PoE Device Type—Port PoE type, for example, powered.
• PoE Power Source—Port’s power source.
• PoE Power Priority—Port’s power priority.
• PoE Power Value—Port’s power value.
• Hardware Revision –Hardware version.
• Firmware Revision—Firmware version.
• Software Revision—Software version.
• Serial Number—Device serial number.
• Manufacturer Name—Device manufacturer name.
• Model Name—Device model name.
• Asset ID—Asset ID.
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802.1 VLAN and Protocol
• PVID—Advertised port VLAN ID.
PPVID
• VID—Protocol VLAN ID.
• Supported—Supported Port and Protocol VLAN IDs.
• Enabled—Enabled Port and Protocol VLAN IDs.
VLAN IDs
• VID—Port and Protocol VLAN ID.
• VLAN Names—Advertised VLAN names.
Protocol IDs
• Protocol ID Table—Advertised protocol IDs.
Location Information
Enter the following data structures in hexadecimal as described in section
10.2.4 of the ANSI-TIA-1057 standard:
• Civic—Civic or street address.
• Coordinates—Location map coordinates—latitude, longitude, and altitude.
• ECS ELIN—Device’s Emergency Call Service (ECS) Emergency Location
Identification Number (ELIN).
• Unknown—Unknown location information.
Network Policies
• Application Type—Network policy application type, for example, Voice.
• VLAN ID—VLAN ID for which the network policy is defined.
• VLAN Type—VLAN type, Tagged or Untagged, for which the network policy
is defined.
• User Priority—Network policy user priority.
• DSCP—Network policy DSCP.
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Configuring Discovery
Configuring LLDP
Accessing LLDP Statistics
The
LLDP Statistics
To view the LLDP statistics:
page displays LLDP statistical information per port.
7
STEP 1 Click Administration > Discovery - LLDP > LLDP Statistics. The
page opens.
For each port, the fields are displayed:
• Interface—Identifier of interface.
• Tx Frames Total—Number of transmitted frames.
• Rx Frames
To t a l
-
-
-
• Rx TLVs
-
-
• Neighbor’s Information Deletion Count—Number of neighbor ageouts on
the interface.
—Number of received frames.
Discarded
Errors
Discarded
Unrecognized
—Total number of received frames that were discarded.
—Total number of received frames with errors.
—Total number of received TLVs that were discarded.
—Total number of received TLVs that were unrecognized.
LLDP Statistics
STEP 2 Click Refresh to view the latest statistics.
LLDP Overloading
LLDP adds information as LLDP and LLDP-MED TLVs into the LLDP packets. LLDP
overload occurs when the total amount of information to be included in a LLDP
packet exceed the maximum PDU size supported by an interface.
The
LLDP Overloading
information, the number of available bytes for additional LLDP information, and the
overloading status of every interface.
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page displays the number of bytes of LLDP/LLDP-MED
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Configuring LLDP
7
To view LLDP overloading information:
STEP 1 Click Administration > Discovery - LLDP > LLDP Overloading. The
Overloading
This page displays the following fields for each port:
• Interface—Port identifier.
• Tot al (B y te s) —Total number of bytes of LLDP information in each packet
• Left to Send (Bytes)—Total number of available bytes left for additional
LLDP information in each packet.
• Status—Whether TLVs are being transmitted or if they are overloaded.
STEP 2 To view the overloading details for a port, select it and click Details. The LLDP
Overloading Details opens.
This page displays the following information for each TLV sent on the port:
• LLDP Mandatory TLVs
- Size (Bytes)—Total mandatory TLV byte size.
- Status—If the mandatory TLV group is being transmitted, or if the TLV
page opens.
group was overloaded.
LLDP
• LLDP MED Capabilities
- Size (Bytes)—Total LLDP MED capabilities packets byte size.
- Status—If the LLDP MED capabilities packets were sent, or if they were
overloaded.
• LLDP MED Location
Size (Bytes)
-
Status
-
overloaded.
• LLDP MED Network Policy
Size (Bytes)
-
Status
-
were overloaded.
• LLDP MED Extended Power via MDI
—Total LLDP MED location packets byte size.
—If the LLDP MED locations packets were sent, or if they were
—Total LLDP MED network policies packets byte size.
—If the LLDP MED network policies packets were sent, or if they
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-
Size (Bytes)
size.
7
—Total LLDP MED extended power via MDI packets byte
Status
-
if they were overloaded.
• 802.3 TLVs
Size (Bytes)
-
Status
-
overloaded.
• LLDP Optional TLVs
Size (Bytes)
-
Status
-
overloaded.
• LLDP MED Inventory
Size (Bytes)
-
Status
-
overloaded.
• Tot al (B y te s) —Total number of bytes of LLDP information in each packet
—If the LLDP MED extended power via MDI packets were sent, or
—Total LLDP MED 802.3 TLVs packets byte size.
—If the LLDP MED 802.3 TLVs packets were sent, or if they were
—Total LLDP MED optional TLVs packets byte size.
—If the LLDP MED optional TLVs packets were sent, or if they were
—Total LLDP MED inventory TLVs packets byte size.
—If the LLDP MED inventory packets were sent, or if they were
• Left to Send (Bytes)—Total number of available bytes left for additional
LLDP information in each packet.
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Configuring CDP
Configuring CDP
This section describes how to configure CDP.
It contains the following topics:
Setting CDP Properties
7
• Setting CDP Properties
• Editing CDP Interface Settings
• Displaying CDP Local Information
• Displaying CDP Neighbors Information
• Viewing CDP Statistics
CDP Overview
Similar to LLDP, CDP (Cisco Discovery Protocol) is a link layer protocol for directly
connected neighbors to advertise themselves and their capabilities to each other.
Unlike LLDP, CDP is a Cisco proprietary protocol.
CDP Configuration Workflow
The followings is sample workflow in configuring CDP on the switch. You can also
find additional CDP configuration guidelines in the LLDP/CDP section.
• Enter the CDP global parameters using the CDP Properties page
• Configure CDP per interface using the Interface Setting page
• If Auto Smartport is to detect the capabilities of CDP devices, enable CDP
in the Smartport Properties page.
See the Identifying Smartport Type section for a description of how CDP is used
to identify devices for the Smartport feature.
CDP Properties
The
To enter CDP properties:
page enables entering CDP general parameters.
STEP 1 Click Administration > Discovery - CDP > Properties. The CDP Properties page
opens.
STEP 2 Enter the parameters.
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• CDP Status—Select to enable CDP on the switch.
• CDP Frames Handling—If CDP is not enabled, select the action to be taken
if a packet that matches the selected criteria is received:
Bridging
-
-
Filtering
Flooding
-
to all the ports excluding the ingress ports.
• CDP Voice VLAN Advertisement—Select to enable the switch to advertise
the voice VLAN in CDP on all of the ports that are CDP enabled, and are
member of the voice VLAN. The voice VLAN is configured in the Voice VLAN
Properties page.
• CDP Mandatory TLVs Validation—If selected, incoming CDP packets not
containing the mandatory TLVs are discarded and the invalid error counter is
incremented.
• CDP Version—Select the version of CDP to use.
• CDP Hold Time—Amount of time that CDP packets are held before the
packets are discarded, measured in multiples of the TLV Advertise Interval.
For example, if the TLV Advertise Interval is 30 seconds, and the Hold
Multiplier is 4, then the LLDP packets are discarded after 120 seconds. The
following options are possible:
—Forward the packet based on the VLAN.
—Delete the packet.
—VLAN unaware flooding that forwards incoming CDP packets
- Use Default—Use the default time (180 seconds)
- User Defined—Enter the time in seconds.
• CDP Transmission Rate—The rate in seconds at which CDP advertisement
updates are sent. The following options are possible:
- Use Default—Use the default rate (60 seconds)
- User Defined—Enter the rate in seconds.
• Device ID Format—Select the format of the device ID (MAC address or
serial number).
• Source Interface—IP address to be used in the TLV of the frames. The
following options are possible:
- Use Default—Use the IP address of the outgoing interface.
- User Defined—Use the IP address of the interface (in the Interface field)
in the address TLV.
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• Interface—IF User Defined was selected for Source Interface, select the
interface.
• Syslog Voice VLAN Mismatch—Check to send a SYSLOG message when
a voice VLAN mismatch is detected. This means that the voice VLAN
information in the incoming frame does not match what the local device is
advertising.
• Syslog Native VLAN Mismatch—Check to send a SYSLOG message when
a native VLAN mismatch is detected. This means that the native VLAN
information in the incoming frame does not match what the local device is
advertising.
• Syslog Duplex Mismatch—Check to send a SYSLOG message when
duplex information is mismatched. This means that the duplex information in
the incoming frame does not match what the local device is advertising.
STEP 3 Click Apply. The LLDP properties are defined.
Editing CDP Interface Settings
Use the
notification per port, and to select the TLVs included in LLDP PDUs.
By setting these properties it is possible to select the types of information to be
provided to devices that support the LLDP protocol.
The LLDP-MED TLVs to be advertised can be selected in the LLDP MED Interface
Settings page.
To define the LLDP interface settings:
STEP 1 Click Administration > Discovery - CDP > Interface Settings. The
Settings
This page displays the following CDP information for each interface.
Interface Settings
page opens.
• CDP Status—CDP publishing option for the port.
page to activate LLDP and remote log server
Interface
• Reporting Conflicts with CDP Neighbors—Displays the status of the
reporting options that are enabled/disabled in the Edit page.
• No. of Neighbors—Number of neighbors detected.
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The bottom of the page has four buttons:
• Copy Settings—Select to copy a configuration from one port to another.
• Edit—Fields explained in Step 2 below.
• CDP Local Information Details—Takes you to t he
- CDP > CDP Local Information
• CDP Neighbor Information Details—Takes y ou to the
page.
Discovery - CDP > CDP Neighbor Information
STEP 2 Select a port and click Edit. The Edit CDP Interface Settings page opens.
This page provides the following fields:
• Interface—Select the interface to be defined.
• CDP Status—Select to enable/disable the CDP publishing option for the
port.
NOTE The next three fields are operational when the switch has been set up
to send traps to the management station.
• Syslog Voice VLAN Mismatch—Select to enable the option of sending a
SYSLOG message when a voice VLAN mismatch is detected This means
that the voice VLAN information in the incoming frame does not match what
the local device is advertising.
• Syslog Native VLAN Mismatch—Select to enable the option of sending a
SYSLOG message when a native VLAN mismatch is detected. This means
that the native VLAN information in the incoming frame does not match what
the local device is advertising.
Administration > Discovery
Administration >
page.
• Syslog Duplex Mismatch—Select to enable the option of sending a
SYSLOG message when duplex information mismatch is detected. This
means that the duplex information in the incoming frame does not match
what the local device is advertising.
STEP 3 Enter the relevant information, and click Apply. The port settings are modified, and
the Running Configuration file is updated.
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Configuring Discovery
Configuring CDP
Displaying CDP Local Information
The
CDP Local Information
CDP protocol about the local device.
To view the CDP local information:
page displays information that is advertised by the
7
STEP 1 Click Administration > Discovery - CDP > CDP Local Information. The
Local Information
STEP 2 Select a local port, and the following fields are displayed:
• Interface—Number of the local port.
• CDP State—Displays whether CDP is enabled or not.
• Device ID Type—Type of the device ID advertised in the device ID TLV.
• Device ID—Device ID advertised in the device ID TLV.
• Address(s)—IP addresses (advertised in the device address TLV).
• Port ID—Identifier of port advertised in the port TLV.
• Capabilities—Capabilities advertised in the port TLV)
• Version—Information about the software release on which the device is
running.
• Platform—Identifier of platform advertised in the platform TLV.
• Native VLAN—The native VLAN identifier advertised in the native VLAN TLV.
page opens.
CDP
• Duplex—Whether port is half or full duplex advertised in the full/half duplex
TLV.
• Appliance ID—Type of device attached to port advertised in the appliance
TLV.
• Appliance VLAN ID—VLAN on the device used by the appliance, for
instance if the appliance is an IP phone, this is the voice VLAN.
• Extended Trust—Enabled indicates that the port is trusted, meaning that the
host/server from which the packet is received is trusted to mark the packets
itself. In this case, packets received on such a port are not re-marked.
Disabled indicates that the port is not trusted in which case, the following
field is relevant.
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• CoS for Untrusted Ports—If Extended Trust is disabled on the port, this
fields displays the Layer 2 CoS value, meaning, an 802.1D/802.1p priority
value. This is the COS value with which all packets received on an untrusted
port are remarked by the device.
• Request ID—Last power request ID received echoes the Request-ID field
last received in a Power Requested TLV. It is 0 if no Power Requested TLV
was received since the interface last transitioned to Up.
• Power Management ID—Value incremented by 1 (or 2, to avoid 0) each time
any one of the following events occur:
- Available-Power or Management Power Level fields change value
- A Power Requested TLV is received with a Request-ID field which is
different from the last-received set (or when the first value is received)
- The interface transitions to Down
• Available Power—Amount of power consumed by port.
• Management Power Level—Displays the supplier's request to the powered
device for its Power Consumption TLV. The device always displays “No
Preference” in this field.
Displaying CDP Neighbors Information
The CDP Neighbors Information page displays CDP information received from
neighboring devices.
After timeout (based on the value received from the neighbor Time To Live TLV
during which no CDP PDU was received from a neighbor), the information is
deleted.
To view the CDP neighbors information:
STEP 1 Click Administration > Discovery - CDP > CDP Neighbors Information. The
Neighbors Information
This page displays the following fields for the link partner (neighbor):
page opens.
CDP
• Device ID—Neighbor’s device ID.
• Local Interface—Number of the local port to which the neighbor is
connected.
• Advertisement Version—CDP protocol version.
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• Time to Live (sec)—Time interval (in seconds) after which the information for
this neighbor is deleted.
• Capabilities—Capabilities advertised by neighbor.
• Platform—Information from Platform TLV of neighbor.
• Neighbor Interface—Outgoing interface of the neighbor.
STEP 2 Select a device, and click Details. The
This page displays the following fields about the neighbor:
• Device ID—Identifier of the neighboring device ID.
• Local Interface—Interface number of port through which frame arrived.
• Advertisement Version—Version of CDP.
• Time to L ive—Time interval (in seconds) after which the information for this
neighbor is deleted.
• Capabilities—Primary functions of the device. The capabilities are indicated
by two octets. Bits 0 through 7 indicate Other, Repeater, Bridge, WLAN AP,
Router, Telephone, DOCSIS cable device, and station respectively. Bits 8
through 15 are reserved.
• Platform—Identifier of the neighbor’s platform.
• Neighbor Interface—Interface number of the neighbor through which frame
arrived.
• Native VLAN—Neighbor’s native VLAN.
CDP Neighbors Details
page opens.
• Duplex—Whether neighbors interface is half or full duplex.
• Addresses—Neighbor’s addresses.
• Power Drawn—Amount of power consumed by neighbor on the interface.
• Version—Neighbor’s software version.
NOTE Clicking on the Clear Table button will disconnect all connected devices if from
CDP, and if Auto Smartport is enabled will change all port types to default.
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Viewing CDP Statistics
The CDP Statistics page displays information regarding Cisco Discovery Protocol
(CDP) frames that were sent or received from a port. CDP packets are received
from devices attached to the switches interfaces, and are used for the Smartport
feature. See Configuring CDP for more information.
CDP statistics for a port are only displayed if CDP is enabled globally and on the
port. This is done in the CDP Properties page and the CDP Interface Settings
page.
To v i ew C D P s ta ti st i c s :
STEP 1 Click Administration > Discovery - CDP > CDP Statistics. The CDP Statistics page
opens.
STEP 2 Enter the parameter.
• Refresh Rate—Select the time period that passes before the
page is refreshed.
The Attribute Counter block displays the counters for various types of packets per
interface.
• Version 1—Number of CDP version 1 packets received/transmitted.
• Version 2—Number of CDP version 2 packets received/transmitted.
• To ta l —Total number of CDP packets received/transmitted.
The CDP Error Statistics section displays the CDP error counters.
• Illegal Checksum—Number of packets received with illegal checksum
value.
• Other Errors—Number of packets received with errors other than illegal
checksums.
CDP Statistics
• Neighbors Over Maximum—Number of times that packet information could
not be stored in cache because of lack of room.
To clear the counters, click Clear Counters. The CDP Statistics counters are
cleared.
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Port Management
This section describes port configuration, link aggregation, and the Green
Ethernet feature.
It contains the following topics:
• Configuring Ports
• Setting Basic Port Configuration
8
• Configuring Link Aggregation
• Configuring Green Ethernet
Configuring Ports
To configure ports, perform the following actions:
1. Configure port by using the Port Setting page.
2. Enable/disable the Link Aggregation Control (LAG) protocol, and configure the
potential member ports to the desired LAGs by using the
page. By default, all LAGs are empty.
3. Configure the Ethernet parameters, such as speed and auto-negotiation for the
LAGs by using the LAG Settings page.
4. Configure the LACP parameters for the ports that are members or candidates
of a dynamic LAG by using the
5. Configure Green Ethernet and 802.3 Energy Efficient Ethernet by using the
Properties
page.
LACP
page
LAG Management
.
6. Configure Green Ethernet energy mode and 802.3 Energy Efficient Ethernet per
port by using the Port Settings page.
7. If PoE is supported and enabled for the switch, configure the switch as
described in Managing Power-over-Ethernet Devices.
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Port Management
Setting Basic Port Configuration
Setting Basic Port Configuration
The Port Setting page displays the global and per port setting of all the ports.
This page enables you to select and configure the desired ports from the Edit Port
Setting page.
To configure port settings:
STEP 1 Click Port Management > Port Setting. The Port Setting page opens.
STEP 2 Select Jumbo Frames to support packets of up to 10 Kb in size. If Jumbo Frames
is not enabled (default), the system supports packet size up to 1,632 bytes. For
jumbo frames to take effect, the switch will need to be rebooted after the feature is
enabled.
STEP 3 Click Apply to update the global setting.
8
Jumbo frames configuration changes take effect only after the Running
Configuration is explicitly saved to the Startup Configuration File using the Copy/
Save Configuration page, and the switch is rebooted.
STEP 4 To update the port settings, select the desired port, and click Edit. The Edit Por t
Setting page opens.
STEP 5 Modify the following parameters:
• Interface—Select the port number.
• Port Description—Enter the port user-defined name or comment.
• Port Type—Displays the port type and speed. The possible options are:
- Copper Ports—Regular, not Combo, support the following values: 10M,
100M, and 1000M (type: Copper).
- Combo Ports Copper—Combo port connected with copper CAT5
cable, supports the following values: 10M, 100M, and 1000M (type:
ComboC).
- Combo Fiber—SFP Fiber Gigabit Interface Converter Port with the
following values: 100M and 1000M (type: ComboF).
NOTE SFP Fiber takes precedence in Combo ports when both ports are
being used.
• Administrative Status—Select whether the port should be Up or Down
when the switch is rebooted.
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• Operational Status—Displays whether the port is currently Up or Down.
• Reactivate Suspended Port—Select to reactivate a port that has been
suspended. There are numerous ways that a port can be suspended, such
as through the locked port security option, dot1x single host violation,
loopback detection, or STP loopback guard. The reactivate operation brings
the port up without regard to why the port was suspended.
• Auto-Negotiation—Select to enable auto-negotiation on the port. Auto-
negotiation enables a port to advertise its transmission speed, duplex mode,
and Flow Control abilities to the port link partner.
• Operational Auto-Negotiation—Displays the current auto-negotiation
status on the port.
• Administrative Port Speed—Configure the speed of the port. The port
type determines which the available speeds. You can designate
Administrative Speed only when port auto-negotiation
is disabled.
NOTE To change the status of a Giga port from 10 Half/100 Half to 1000 Full,
change the duplex mode to Full and then change the Administrative Port
speed to 1000.
• Operational Port Speed—Displays the current port speed that is the result
of negotiation.
• Administrative Duplex Mode—Select the port duplex mode. This field is
configurable only when auto-negotiation is disabled, and the port speed is
set to 10M or 100M. At port speed of 1G, the mode is always full duplex. The
possible options are:
- Full—The interface supports transmission between the switch and the
client in both directions simultaneously.
- Half—The interface supports transmission between the switch and the
client in only one direction at a time.
• Operational Duplex Mode—Displays the port’s current duplex mode.
• Auto Advertisement—Select the capabilities advertised by auto-
negotiation when it is enabled. The options are:
- Max Capability—All port speeds and duplex mode settings can be
accepted.
- 10 Half—10 Mbps speed and Half Duplex mode.
- 10 Full—10 Mbps speed and Full Duplex mode.
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8
- 100 Half—100 Mbps speed and Half Duplex mode.
- 100 Full—100 Mbps speed and Full Duplex mode.
- 1000 Full—1000 Mbps speed and Full Duplex mode.
• Operational Advertisement—Displays the capabilities currently published
to the port’s neighbor. The possible options are those specified in the
Administrative Advertisement field.
• Neighbor Advertisement—Displays the capabilities advertised by the
neighboring device (link partner).
• Back Pressure—Select the Back Pressure mode on the port (used with Half
Duplex mode) to slow down the packet reception speed when the switch is
congested. It disables the remote port, preventing it from sending packets
by jamming the signal.
• Flow Control—Enable or disable 802.3x Flow Control, or enable the auto-
negotiation of Flow Control on the port (only when in Full Duplex mode).
• MDI/MDIX—the Media Dependent Interface (MDI)/Media Dependent
Interface with Crossover (MDIX) status on the port.
The options are:
- MDIX—Select to swap the port's transmit and receives pairs.
- MDI—Select to connect this switch to a station by using a straight
through cable.
- Auto—Select to configure this switch to automatically detect the correct
pinouts for the connection to another device.
• Operational MDI/MDIX—Displays the current MDI/MDIX setting.
• Member in LAG—Displays the LAG, if the port is a member of a LAG;
otherwise this field is left blank.
STEP 6 Click Apply. The Port Settings are modified, and the Running Configuration file is
updated.
Configuring Link Aggregation
This section describes how to configure LAGs. It contains the following topics:
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8
• Link Aggregation Overview
• Static and Dynamic LAG Workflow
• Defining LAG Management
• Configuring LAG Settings
• Configuring LACP
Link Aggregation Overview
Link Aggregation Control Protocol (LACP) is part of the IEEE specification (802.3az)
that allows you to bundle several physical ports together to form a single logical
channel (LAG). LAGs multiply the bandwidth, increase port flexibility, and provide
link redundancy between two devices.
Two types of LAGs are supported:
• Static—A LAG is static if the LACP is disabled on it. The group of ports
assigned to a static LAG are always active members. After a LAG is manually
created, the LACP option cannot be added or removed, until the LAG is
edited and a member is removed (which can be added prior applying), then
the LACP button will become available for editing.
• Dynamic—A LAG is dynamic if LACP is enabled on it. The group of ports
assigned to dynamic LAG are candidate ports. LACP determines which
candidate ports are active member ports. The non-active candidate ports
are standby ports ready to replace any failing active member ports.
Load Balancing
Load Balancing
Traffic forwarded to a LAG is load-balanced across the active member ports, thus
achieving an effective bandwidth close to the aggregate bandwidth of all the
active member ports of the LAG.
Traffic load balancing over the active member ports of a LAG is managed by a
hash-based distribution function that distributes Unicast and Multicast traffic
based on packet header information.
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The switch supports two modes of load balancing:
• By MAC Addresses—Based on the destination and source MAC addresses
of all packets.
• By IP and MAC Addresses—Based on the destination and source IP
addresses for IP packets, and destination and source MAC addresses for
non-IP packets.
LAG Management
LAG Management
In general, a LAG is treated by the system as a single logical port. In particular, the
LAG has port attributes similar to a regular port, such as state and speed.
The switch supports four LAGs.
Every LAG has the following characteristics:
• All ports in a LAG must be of the same media type.
• To add a port to the LAG, it cannot belong to any VLAN except the default
VLAN.
• Ports in a LAG must not be assigned to another LAG.
• No more than eight ports are assigned to a static LAG and no more than 16
ports can be candidates for a dynamic LAG.
• All the ports i n a LAG must have auto-negoti ation disable d, although th e LAG
can have auto-negotiation enabled.
• When a port is added to a LAG, the configuration of the LAG is applied to the
port. When the port is removed from the LAG, its original configuration is
reapplied.
• Protocols, such as Spanning Tree, consider all the ports in the LAG to be one
port.
Static and Dynamic LAG Workflow
NOTE After a LAG has been manually created, LACP cannot be added or removed until
the LAG is edited and a member is removed. Only then will the LACP button
become available for editing.
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To configure a static LAG, perform the following actions:
1. Disable LACP on the LAG to make it static. Assign up to eight member ports to
the static LAG by selecting and moving the ports from the Port List to the LAG
Members list. Select the load balancing algorithm for the LAG. Perform these
actions in the
2. Configure various aspects of the LAG, such as speed and flow control by using
LAG Settings
the
To configure a dynamic LAG, perform the following actions:
1. Enabling LACP on the LAG. Assign up to 16 candidates ports to the dynamic
LAG by selecting and moving the ports from the Port List to the LAG Members
List by using the
2. Configure various aspects of the LAG, such as speed and flow control by using
LAG Settings
the
LAG Management
page.
LAG Management
page.
page.
page.
3. Set the LACP priority and timeout of the ports in the LAG by using the
page.
Defining LAG Management
The LAG Management page displays the global and per LAG settings. The page
also enables you to configure the global setting and to select and edit the desired
LAG on the Edit LAG Membership page.
To select the load balancing algorithm of the LAG:
STEP 1 Click Port Management > Link Aggregation > LAG Management. The
Management
STEP 2 Select one of the following Load Balance Algorithms:
• MAC Address—Perform load balancing by source and destination MAC
addresses on all packets.
• IP/MAC Address—Perform load balancing by the source and destination IP
addresses on IP packets, and by the source and destination MAC addresses
on non-IP packets
page opens.
LACP
LAG
STEP 3 Click Apply. The Load Balance Algorithm is defined, and the Running Configuration
file is updated.
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8
To define the member or candidate ports in a LAG.
STEP 1 Select the LAG to be configured, and click Edit. The
opens.
STEP 2 Enter the values for the following fields:
• LAG—Select the LAG number.
• LAG Name—Enter the LAG name or a comment.
• LACP—Select to enable LACP on the selected LAG. This makes it a dynamic
LAG. This field can only be enabled after moving a port to the LAG in the next
field.
• Port List—Move those ports that are to be assigned to the LAG from the
Port List to the LAG Members list. Up to eight ports per static LAG can be
assigned, and 16 ports can be assigned to a dynamic LAG.
STEP 3 Click Apply. The LAG membership is defined, and the Running Configuration file is
updated.
Edit LAG Membership
page
Configuring LAG Settings
The
LAG Settings
configure the settings of selected LAGs, and reactivate suspended LAGs by
launching the Edit L AG Settings page.
To configure the LAG settings or reactivate a suspended LAG:
STEP 1 Click Port Management > Link Aggregation > LAG Settings. The
page opens.
STEP 2 Select a LAG, and click Edit. The
STEP 3 Enter the values for the following fields:
• LAG—Select the LAG ID number.
• Description—Enter the LAG name or a comment.
• LAG Type—Displays the port type that comprises the LAG.
• Administrative Status—Set the selected LAG to be Up or Down.
• Operational Status—Displays whether the LAG is currently operating.
page displays a table of current settings for all LAGs. You can
Edit LAG Settings
page opens.
LAG Settings
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• Reactivate Suspended LAG—Select to reactivate a port if the LAG has
been disabled through the locked port security option .
• Administrative Auto-Negotiation—Enables or disable auto-negotiation on
the LAG. Auto-negotiation is a protocol between two link partners that
enables a LAG to advertise its transmission speed and flow control to its
partner (the Flow Control default is disabled). It is recommended to keep
auto-negotiation enabled on both sides of an aggregate link, or disabled on
both sides, while ensuring that link speeds are identical.
• Operational Auto-Negotiation—Displays the auto-negotiation setting.
• Administrative Speed—Select the LAG speed.
• Operational LAG Speed—Displays the current speed at which the LAG is
operating.
• Administrative Advertisement—Select the capabilities to be advertised by
the LAG. The options are:
- Max Capability—All LAG speeds and both duplex modes are available.
- 10 Full—The LAG advertises a 10 Mbps speed and the mode is full
duplex.
- 100 Full—The LAG advertises a 100 Mbps speed and the mode is full
duplex.
- 1000 Full—The LAG advertises a 1000 Mbps speed and the mode is full
duplex.
• Operational Advertisement—Displays the Administrative Advertisement
status. The LAG advertises its capabilities to its neighbor LAG to start the
negotiation process. The possible values are those specified in the
Administrative Advertisement field.
• Neighbor Advertisement—Displays the capabilities that are advertised by
the neighbor LAG (the LAG to which the selected interface is connected)
that advertises its capabilities to the LAG to start the negotiation process.
The values are the same as in the Administrative Advertisement field.
• Administrative Flow Control—Enable or disable Flow Control or enable the
auto-negotiation of Flow Control on the LAG.
• Operational Flow Control—Displays the current Flow Control setting.
STEP 4 Click Apply. The Running Configuration file is updated.
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