SMC Networks SMC6752AL2 User Manual

TigerSwitch 10/100

48-Port 10/100Mbps

Fast Ethernet Managed Switch

48 auto-MDI/MDI-X 10BASE-T/100BASE-TX ports

2 Gigabit RJ-45 ports shared with 2 SFP transceiver slots

2 Gigabit RJ-45 ports

17.8 Gbps of aggregate bandwidth

Non-blocking switching architecture

Spanning Tree Protocol and Rapid STP

Up to four LACP or static 4-port trunks

Layer 2/3/4 CoS support through four priority queues

Full support for VLANs with GVRP

IGMP multicast filtering and snooping

Support for jumbo frames up to 9 KB

Manageable via console, Web, SNMP, RMON

Management Guide

SMC6752AL2

TigerSwitch 10/100

Management Guide

From SMC’s Tiger line of feature-rich workgroup LAN solutions

38 Tesla
Irvine, CA 92618	November 2004
Phone: [phone]	Pub. # 149100005200H

Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. SMC reserves the right to change specifications at any time without notice.

Copyright © 2004 by SMC Networks, Inc.

38 Tesla

Irvine, CA 92618 All rights reserved.

Trademarks:

SMC is a registered trademark; and EZ Switch, TigerStack and TigerSwitch are trademarks of SMC Networks, Inc. Other product and company names are trademarks or registered trademarks of their respective holders.

LIMITED WARRANTY

Limited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be free from defects in workmanship and materials, under normal use and service, for the applicable warranty term. All SMC products carry a standard 90-day limited warranty from the date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion, repair or replace any product not operating as warranted with a similar or functionally equivalent product, during the applicable warranty term. SMC will endeavor to repair or replace any product returned under warranty within 30 days of receipt of the product.

The standard limited warranty can be upgraded to a Limited Lifetime* warranty by registering new products within 30 days of purchase from SMC or its Authorized Reseller. Registration can be accomplished via the enclosed product registration card or online via the SMC web site. Failure to register will not affect the standard limited warranty. The Limited Lifetime warranty covers a product during the Life of that Product, which is defined as the period of time during which the product is an “Active” SMC product. A product is considered to be “Active” while it is listed on the current SMC price list. As new technologies emerge, older technologies become obsolete and SMC will, at its discretion, replace an older product in its product line with one that incorporates these newer technologies. At that point, the obsolete product is discontinued and is no longer an “Active” SMC product. A list of discontinued products with their respective dates of discontinuance can be found at: http://www.smc.com/index.cfm?action=customer_service_warranty.

All products that are replaced become the property of SMC. Replacement products may be either new or reconditioned. Any replaced or repaired product carries either a 30-day limited warranty or the remainder of the initial warranty, whichever is longer. SMC is not responsible for any custom software or firmware, configuration information, or memory data of Customer contained in, stored on, or integrated with any products returned to SMC pursuant to any warranty. Products returned to SMC should have any customer-installed accessory or add-on components, such as expansion modules, removed prior to returning the product for replacement. SMC is not responsible for these items if they are returned with the product.

Customers must contact SMC for a Return Material Authorization number prior to returning any product to SMC. Proof of purchase may be required. Any product returned to SMC without a valid Return Material Authorization (RMA) number clearly marked on the outside of the package will be returned to customer at customer’s expense. For warranty claims within North America, please call our toll-free customer support number at [phone]. Customers are responsible for all shipping charges from their facility to SMC. SMC is responsible for return shipping charges from SMC to customer.

i

LIMITED WARRANTY

WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT OF THE PRODUCT IN QUESTION, AT SMC’S OPTION. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SMC NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS. SMC SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.

LIMITATION OF LIABILITY: IN NO EVENT, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), SHALL SMC BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF SMC OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

SOME STATES DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES OR THE LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR CONSUMER PRODUCTS, SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE. NOTHING IN THIS WARRANTY SHALL BE TAKEN TO AFFECT YOUR STATUTORY RIGHTS.

* SMC will provide warranty service for one year following discontinuance from the active SMC price list. Under the limited lifetime warranty, internal and external power supplies, fans, and cables are covered by a standard one-year warranty from date of purchase.

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

ii

CONTENTS

1	Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	1-1
	Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	1-1
	Description of Software Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	1-2
	System Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	1-7

2	Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	2-1
	Connecting to the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 2-1
	Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-1
	Required Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-2
	Remote Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-4
	Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-5
	Console Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-5
	Setting Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-5
	Setting an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-6
	Manual Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-7
	Dynamic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-8
	Enabling SNMP Management Access . . . . . . . . . . . . . . . . . . . . .	2-9
	Community Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-9
	Trap Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-10
	Saving Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . .	2-11
	Managing System Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-12

3	Configuring the Switch . . . . . . . . . . . . . . . . . . . . . . . .	3-1
	Using the Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 3-1
	Navigating the Web Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . .	. 3-3
	Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 3-3
	Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3-4
	Panel Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3-4
	Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3-5
	Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3-11
	Displaying System Information . . . . . . . . . . . . . . . . . . . . . . . . .	3-11
	Displaying Switch Hardware/Software Versions . . . . . . . . . . .	3-13
	Displaying Bridge Extension Capabilities . . . . . . . . . . . . . . . . .	3-15
	Setting the Switch’s IP Address . . . . . . . . . . . . . . . . . . . . . . . .	3-17
	Manual Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3-18

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CONTENTS

Using DHCP/BOOTP . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Managing Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 Downloading System Software from a Server . . . . . . . . . . 3-22 Saving or Restoring Configuration Settings . . . . . . . . . . . . . . . 3-24 Downloading Configuration Settings from a Server . . . . . 3-26 Console Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28 Telnet Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30 Configuring Event Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33 System Log Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 3-33 Remote Log Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 3-35 Displaying Log Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38 Sending Simple Mail Transfer Protocol Alerts . . . . . . . . . 3-39 Resetting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41 Setting the System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42 Configuring SNTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42 Setting the Time Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Simple Network Management Protocol . . . . . . . . . . . . . . . . . . . . . . . . 3-45 Setting Community Access Strings . . . . . . . . . . . . . . . . . . . . . . 3-45 Specifying Trap Managers and Trap Types . . . . . . . . . . . . . . . . 3-46 User Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48 Configuring User Accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48 Configuring Local/Remote Logon Authentication . . . . . . . . . 3-50 Configuring HTTPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54 Replacing the Default Secure-site Certificate . . . . . . . . . . 3-56 Configuring the Secure Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57 Generating the Host Key Pair . . . . . . . . . . . . . . . . . . . . . . 3-60 Configuring the SSH Server . . . . . . . . . . . . . . . . . . . . . . . . 3-63 Configuring Port Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65 Configuring 802.1X Port Authentication . . . . . . . . . . . . . . . . . 3-67 Displaying 802.1X Global Settings . . . . . . . . . . . . . . . . . . 3-69 Configuring 802.1X Global Settings . . . . . . . . . . . . . . . . . 3-70 Configuring Port Settings for 802.1X . . . . . . . . . . . . . . . . 3-71 Displaying 802.1X Statistics . . . . . . . . . . . . . . . . . . . . . . . . 3-74 Filtering Addresses for Management Access . . . . . . . . . . . . . . 3-76

Access Control Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78 Configuring Access Control Lists . . . . . . . . . . . . . . . . . . . . . . . 3-78 Setting the ACL Name and Type . . . . . . . . . . . . . . . . . . . . 3-79

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CONTENTS

Configuring a Standard IP ACL . . . . . . . . . . . . . . . . . . . . . 3-80 Configuring an Extended IP ACL . . . . . . . . . . . . . . . . . . . 3-82 Configuring a MAC ACL . . . . . . . . . . . . . . . . . . . . . . . . . . 3-84 Binding a Port to an Access Control List . . . . . . . . . . . . . . . . . 3-86

Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-88 Displaying Connection Status . . . . . . . . . . . . . . . . . . . . . . . . . . 3-88 Configuring Interface Connections . . . . . . . . . . . . . . . . . . . . . . 3-91 Creating Trunk Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-93 Statically Configuring a Trunk . . . . . . . . . . . . . . . . . . . . . . 3-95 Enabling LACP on Selected Ports . . . . . . . . . . . . . . . . . . . 3-97 Configuring LACP Parameters . . . . . . . . . . . . . . . . . . . . . . 3-99 Displaying LACP Port Counters . . . . . . . . . . . . . . . . . . . 3-103 Displaying LACP Settings and Status for the Local Side 3-104 Displaying LACP Settings and Status for the Remote Side3-107 Setting Broadcast Storm Thresholds . . . . . . . . . . . . . . . . . . . . 3-109 Configuring Port Mirroring . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-111 Configuring Rate Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-113 Rate Limit Granularity . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-113 Rate Limit Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 3-114 Showing Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-115

Address Table Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-122 Setting Static Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-122 Displaying the Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . 3-123 Changing the Aging Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-125 Spanning Tree Algorithm Configuration . . . . . . . . . . . . . . . . . . . . . . 3-125 Displaying Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-127 Configuring Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-131 Displaying Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 3-135 Configuring Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . . 3-139 VLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-142 IEEE 802.1Q VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-142 Enabling or Disabling GVRP (Global Setting) . . . . . . . 3-147 Displaying Basic VLAN Information . . . . . . . . . . . . . . . 3-147 Displaying Current VLANs . . . . . . . . . . . . . . . . . . . . . . . 3-148 Creating VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-150 Adding Static Members to VLANs (VLAN Index) . . . . 3-152 Adding Static Members to VLANs (Port Index) . . . . . . . 3-154

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CONTENTS

Configuring VLAN Behavior for Interfaces . . . . . . . . . . 3-156 Private VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-159 Displaying Current Private VLANs . . . . . . . . . . . . . . . . . 3-160 Configuring Private VLANs . . . . . . . . . . . . . . . . . . . . . . 3-162 Associating VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-163 Displaying Private VLAN Interface Information . . . . . . 3-164 Configuring Private VLAN Interfaces . . . . . . . . . . . . . . . 3-166 Class of Service Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-168 Layer 2 Queue Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-168 Setting the Default Priority for Interfaces . . . . . . . . . . . . 3-168 Mapping CoS Values to Egress Queues . . . . . . . . . . . . . 3-170 Selecting the Queue Mode . . . . . . . . . . . . . . . . . . . . . . . . 3-173 Setting the Service Weight for Traffic Classes . . . . . . . . . 3-174 Layer 3/4 Priority Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-175 Mapping Layer 3/4 Priorities to CoS Values . . . . . . . . . . 3-175 Selecting IP Precedence/DSCP Priority . . . . . . . . . . . . . 3-176 Mapping IP Precedence . . . . . . . . . . . . . . . . . . . . . . . . . . 3-176 Mapping DSCP Priority . . . . . . . . . . . . . . . . . . . . . . . . . . 3-178 Mapping IP Port Priority . . . . . . . . . . . . . . . . . . . . . . . . . 3-180 Mapping CoS Values to ACLs . . . . . . . . . . . . . . . . . . . . . 3-182

Multicast Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-184 Layer 2 IGMP (Snooping and Query) . . . . . . . . . . . . . . . . . . . 3-185 Configuring IGMP Snooping and Query Parameters . . . 3-185 Displaying Interfaces Attached to a Multicast Router . . 3-188 Specifying Static Interfaces for a Multicast Router . . . . . 3-189 Displaying Port Members of Multicast Services . . . . . . . 3-190 Assigning Ports to Multicast Services . . . . . . . . . . . . . . . 3-192

4 Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . 4-1

Using the Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Accessing the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Console Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Telnet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Entering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Keywords and Arguments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Minimum Abbreviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Command Completion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

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	CONTENTS
Getting Help on Commands . . . . . . . . . . . . . . . . . . . . . .	. . . . . . 4-5
Showing Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . 4-6
Partial Keyword Lookup . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . 4-7
Negating the Effect of Commands . . . . . . . . . . . . . . . . .	. . . . . . 4-7
Using Command History . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . 4-7
Understanding Command Modes . . . . . . . . . . . . . . . . . .	. . . . . . 4-8
Exec Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . 4-8
Configuration Commands . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . 4-9
Command Line Processing . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-11
Command Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-12
Line Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-14
line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-15
login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-16
password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-17
timeout login response . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-18
exec-timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-19
password-thresh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-20
silent-time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-21
databits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-22
parity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-23
speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-23
stopbits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-24
disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-25
show line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-25
General Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-26
enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-27
disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-28
configure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-28
show history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-29
reload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-30
end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-30
exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-31
quit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-31
System Management Commands . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-32
Device Designation Commands . . . . . . . . . . . . . . . . . . .	. . . . . 4-33
prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-33
hostname . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 4-34

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User Access Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34 username . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35 enable password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36 IP Filter Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37 management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38 show management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Web Server Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40 ip http port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41 ip http server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41 ip http secure-server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42 ip http secure-port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43

Telnet Server Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44 ip telnet port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44 ip telnet server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Secure Shell Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46 ip ssh server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49 ip ssh timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50 ip ssh authentication-retries . . . . . . . . . . . . . . . . . . . . . . . . 4-51 ip ssh server-key size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51 delete public-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52 ip ssh crypto host-key generate . . . . . . . . . . . . . . . . . . . . . 4-53 ip ssh crypto zeroize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54 ip ssh save host-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54 show ip ssh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55 show ssh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55 show public-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57

Event Logging Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59 logging on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59 logging history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60 logging host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61 logging facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62 logging trap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63 clear logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64 show logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64 show log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66

SMTP Alert Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68 logging sendmail host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68

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logging sendmail level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-69 logging sendmail source-email . . . . . . . . . . . . . . . . . . . . . . 4-70 logging sendmail destination-email . . . . . . . . . . . . . . . . . . 4-70 logging sendmail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71 show logging sendmail . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71

Time Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-72 sntp client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-73 sntp server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74 sntp poll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75 show sntp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75 clock timezone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76 calendar set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77 show calendar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-78

System Status Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-78 show startup-config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-78 show running-config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-81 show system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83 show users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83 show version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84

Frame Size Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85 jumbo frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85 Flash/File Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-86 copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-87 delete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-90 dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-91 whichboot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-92 boot system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-93

Authentication Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-94 Authentication Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-94 authentication login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-94 authentication enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-96 RADIUS Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-97 radius-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-97 radius-server port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-98 radius-server key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-99 radius-server retransmit . . . . . . . . . . . . . . . . . . . . . . . . . . 4-100 radius-server timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-100

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CONTENTS
show radius-server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-101
TACACS+ Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-102
tacacs-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-102
tacacs-server port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-103
tacacs-server key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-103
show tacacs-server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-104
Port Security Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-104
port security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-105
802.1X Port Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-107
dot1x system-auth-control . . . . . . . . . . . . . . . . . . . . . . . .	4-108
dot1x default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-108
dot1x max-req . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-109
dot1x port-control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-109
dot1x operation-mode . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-110
dot1x re-authenticate . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-111
dot1x re-authentication . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-111
dot1x timeout quiet-period . . . . . . . . . . . . . . . . . . . . . . . .	4-112
dot1x timeout re-authperiod . . . . . . . . . . . . . . . . . . . . . .	4-112
dot1x timeout tx-period . . . . . . . . . . . . . . . . . . . . . . . . . .	4-113
show dot1x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-114
Access Control List Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-117
IP ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-118
access-list ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-119
permit, deny (Standard ACL) . . . . . . . . . . . . . . . . . . . . .	4-120
permit, deny (Extended ACL) . . . . . . . . . . . . . . . . . . . . .	4-122
show ip access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-124
ip access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-125
show ip access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-126
map access-list ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-126
show map access-list ip . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-127
MAC ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-128
access-list mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-128
permit, deny (MAC ACL) . . . . . . . . . . . . . . . . . . . . . . . . .	4-130
show mac access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-131
mac access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-132
show mac access-group . . . . . . . . . . . . . . . . . . . . . . . . . .	4-132
map access-list mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-133

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CONTENTS

show map access-list mac . . . . . . . . . . . . . . . . . . . . . . . . . 4-134 ACL Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-135 show access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-135 show access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-135

SNMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-136 snmp-server community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-136 snmp-server contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-137 snmp-server location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-138 snmp-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-139 snmp-server enable traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-140 show snmp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-141

Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-144 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-145 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-145 speed-duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-146 negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-147 capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-148 flowcontrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-149 shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-150 switchport broadcast packet-rate . . . . . . . . . . . . . . . . . . . . . . . 4-151 clear counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-152 show interfaces status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-153 show interfaces counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-154 show interfaces switchport . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-156

Mirror Port Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-158 port monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-158 show port monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-159

Rate Limit Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-160 rate-limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-161 rate-limit granularity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-161 show rate-limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-162

Link Aggregation Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-163 channel-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-165 lacp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-166 lacp system-priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-167 lacp admin-key (Ethernet Interface) . . . . . . . . . . . . . . . . . . . . 4-169 lacp admin-key (Port Channel) . . . . . . . . . . . . . . . . . . . . . . . . . 4-170

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CONTENTS
lacp port-priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-171
show lacp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-172
Address Table Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-177
mac-address-table static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-178
clear mac-address-table dynamic . . . . . . . . . . . . . . . . . . . . . . .	4-179
show mac-address-table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-179
mac-address-table aging-time . . . . . . . . . . . . . . . . . . . . . . . . . .	4-180
show mac-address-table aging-time . . . . . . . . . . . . . . . . . . . . .	4-181
Spanning Tree Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-182
spanning-tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-183
spanning-tree mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-184
spanning-tree forward-time . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-185
spanning-tree hello-time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-185
spanning-tree max-age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-186
spanning-tree priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-187
spanning-tree pathcost method . . . . . . . . . . . . . . . . . . . . . . . .	4-188
spanning-tree transmission-limit . . . . . . . . . . . . . . . . . . . . . . .	4-188
spanning-tree spanning-disabled . . . . . . . . . . . . . . . . . . . . . . .	4-189
spanning-tree cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-190
spanning-tree port-priority . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-191
spanning-tree edge-port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-191
spanning-tree portfast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-192
spanning-tree link-type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-193
spanning-tree protocol-migration . . . . . . . . . . . . . . . . . . . . . .	4-194
show spanning-tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-195
VLAN Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-197
Editing VLAN Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-197
vlan database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-197
vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-198
Configuring VLAN Interfaces . . . . . . . . . . . . . . . . . . . . . . . . .	4-200
interface vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-200
switchport mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-201
switchport acceptable-frame-types . . . . . . . . . . . . . . . . .	4-202
switchport ingress-filtering . . . . . . . . . . . . . . . . . . . . . . .	4-203
switchport native vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-204
switchport allowed vlan . . . . . . . . . . . . . . . . . . . . . . . . . .	4-205
switchport forbidden vlan . . . . . . . . . . . . . . . . . . . . . . . .	4-206

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	CONTENTS
Displaying VLAN Information . . . . . . . . . . . . . . . . . . . .	. . . . 4-207
show vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-207
Configuring Private VLANs . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-208
private-vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-210
private vlan association . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-211
switchport mode private-vlan . . . . . . . . . . . . . . . . . .	. . . . 4-212
switchport private-vlan host-association . . . . . . . . .	. . . . 4-213
switchport private-vlan mapping . . . . . . . . . . . . . . .	. . . . 4-213
show vlan private-vlan . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-214
GVRP and Bridge Extension Commands . . . . . . . . . . . . . . . . .	. . . . 4-215
bridge-ext gvrp . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-215
show bridge-ext . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-216
switchport gvrp . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-217
show gvrp configuration . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-217
garp timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-218
show garp timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-219
Priority Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-220
Priority Commands (Layer 2) . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-220
queue mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-221
switchport priority default . . . . . . . . . . . . . . . . . . . .	. . . . 4-222
queue bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-223
queue cos-map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-224
show queue mode . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-225
show queue bandwidth . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-225
show queue cos-map . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-226
Priority Commands (Layer 3 and 4) . . . . . . . . . . . . . . . .	. . . . 4-227
map ip port (Global Configuration) . . . . . . . . . . . . .	. . . . 4-227
map ip port (Interface Configuration) . . . . . . . . . . .	. . . . 4-228
map ip precedence (Global Configuration) . . . . . . .	. . . . 4-229
map ip precedence (Interface Configuration) . . . . .	. . . . 4-230
map ip dscp (Global Configuration) . . . . . . . . . . . .	. . . . 4-231
map ip dscp (Interface Configuration) . . . . . . . . . . .	. . . . 4-231
show map ip port . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-233
show map ip precedence . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-234
show map ip dscp . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 4-235

xiii

CONTENTS
Multicast Filtering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-236
IGMP Snooping Commands . . . . . . . . . . . . . . . . . . . . . . . . .	4-236
ip igmp snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-237
ip igmp snooping vlan static . . . . . . . . . . . . . . . . . . . . . . .	4-237
ip igmp snooping version . . . . . . . . . . . . . . . . . . . . . . . . .	4-238
show ip igmp snooping . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-239
show mac-address-table multicast . . . . . . . . . . . . . . . . . .	4-239
IGMP Query Commands (Layer 2) . . . . . . . . . . . . . . . . . . . .	4-240
ip igmp snooping querier . . . . . . . . . . . . . . . . . . . . . . . . .	4-241
ip igmp snooping query-count . . . . . . . . . . . . . . . . . . . . .	4-241
ip igmp snooping query-interval . . . . . . . . . . . . . . . . . . . .	4-242
ip igmp snooping query-max-response-time . . . . . . . . . .	4-243
ip igmp snooping router-port-expire-time . . . . . . . . . . . .	4-244
Static Multicast Routing Commands . . . . . . . . . . . . . . . . . . . .	4-245
ip igmp snooping vlan mrouter . . . . . . . . . . . . . . . . . . . .	4-245
show ip igmp snooping mrouter . . . . . . . . . . . . . . . . . . .	4-246
IP Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-247
ip address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-247
ip default-gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-249
ip dhcp restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-249
show ip interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-250
show ip redirects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-251
ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-251

A Software Specifications . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Software Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Management Information Bases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

B Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

Problems Accessing the Management Interface . . . . . . . . . . . . . . . . . .	B-1
Using System Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	B-3

Glossary

Index

xiv

TABLES

Table 1-1 Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Table 1-2 System Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Table 3-1 Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Table 3-2 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Table 3-3 Logging Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 Table 3-4 HTTPS System Support . . . . . . . . . . . . . . . . . . . . . . . . . 3-55 Table 3-5 802.1X Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74 Table 3-6 LACP Port Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102 Table 3-7 LACP Internal Configuration Information . . . . . . . . . 3-103 Table 3-8 LACP Neighbor Configuration Information . . . . . . . . 3-106 Table 3-9 Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-115 Table 3-10 Egress Queue Priority Mapping . . . . . . . . . . . . . . . . . . 3-169 Table 3-11 CoS Priority Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-170 Table 3-12 Mapping IP Precedence . . . . . . . . . . . . . . . . . . . . . . . . . 3-176 Table 3-13 Mapping DSCP Priority Values . . . . . . . . . . . . . . . . . . . 3-177 Table 3-14 Egress Queue Priority Mapping . . . . . . . . . . . . . . . . . . 3-181 Table 4-1 Command Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 Table 4-2 Configuration Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10 Table 4-3 Command Line Processing . . . . . . . . . . . . . . . . . . . . . . . 4-11 Table 4-4 Command Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12 Table 4-5 Line Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14 Table 4-6 General Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26 Table 4-7 System Management Commands . . . . . . . . . . . . . . . . . . 4-32 Table 4-8 Device Designation Commands . . . . . . . . . . . . . . . . . . . 4-33 Table 4-9 User Access Commands . . . . . . . . . . . . . . . . . . . . . . . . . 4-34 Table 4-10 Default Login Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35 Table 4-11 IP Filter Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37 Table 4-12 Web Server Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40 Table 4-13 HTTPS System Support . . . . . . . . . . . . . . . . . . . . . . . . . 4-43 Table 4-14 Telnet Server Commands . . . . . . . . . . . . . . . . . . . . . . . . 4-44 Table 4-15 SSH Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46 Table 4-16 show ssh - display description . . . . . . . . . . . . . . . . . . . . . 4-56 Table 4-17 Event Logging Commands . . . . . . . . . . . . . . . . . . . . . . . 4-59 Table 4-18 Logging Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60 Table 4-19 show logging flash/ram - display description . . . . . . . . . 4-65 Table 4-20 show logging trap - display description . . . . . . . . . . . . . . 4-66

xv

TABLES
Table 4-21 SMTP Alert Commands . . . . . . . . . . . . . . . . . . . . . . . .		. 4-68
Table 4-22	Time Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-72
Table 4-23 System Status Commands . . . . . . . . . . . . . . . . . . . . . . . .		4-78
Table 4-24 Frame Size Commands . . . . . . . . . . . . . . . . . . . . . . . . . .		4-85
Table 4-25	Flash/File Commands . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-86
Table 4-26 File Directory Information . . . . . . . . . . . . . . . . . . . . . . .		4-92
Table 4-27	Authentication Commands . . . . . . . . . . . . . . . . . . . . . . .	4-94
Table 4-28	Authentication Sequence . . . . . . . . . . . . . . . . . . . . . . . . .	4-94
Table 4-29 RADIUS Client Commands . . . . . . . . . . . . . . . . . . . . . .		4-97
Table 4-30	TACACS Commands . . . . . . . . . . . . . . . . . . . . . . . . . .	4-102
Table 4-31 Port Security Commands . . . . . . . . . . . . . . . . . . . . . . . .		4-105
Table 4-32 802.1X Port Authentication . . . . . . . . . . . . . . . . . . . . .		4-107
Table 4-33 Access Control Lists . . . . . . . . . . . . . . . . . . . . . . . . . . .		4-118
Table 4-34	IP ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-118
Table 4-35 Egress Queue Priority Mapping . . . . . . . . . . . . . . . . . .		4-127
Table 4-36	MAC ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-128
Table 4-37 Egress Queue Priority Mapping . . . . . . . . . . . . . . . . . .		4-133
Table 4-38	ACL Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-135
Table 4-39	SNMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-136
Table 4-40	Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-144
Table 4-41 Interfaces Switchport Statistics . . . . . . . . . . . . . . . . . . .		4-157
Table 4-42 Mirror Port Commands . . . . . . . . . . . . . . . . . . . . . . . . .		4-158
Table 4-43 Rate Limit Commands . . . . . . . . . . . . . . . . . . . . . . . . . .		4-160
Table 4-44 Link Aggregation Commands . . . . . . . . . . . . . . . . . . . .		4-164
Table 4-45 show lacp counters - display description . . . . . . . . . . .		4-174
Table 4-46 show lacp internal - display description . . . . . . . . . . . .		4-175
Table 4-47 show lacp neighbors - display description . . . . . . . . . .		4-177
Table 4-49 Address Table Commands . . . . . . . . . . . . . . . . . . . . . .		4-178
Table 4-48 show lacp sysid - display description . . . . . . . . . . . . . .		4-178
Table 4-50 Spanning Tree Commands . . . . . . . . . . . . . . . . . . . . . .		4-183
Table 4-51	VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-198
Table 4-52 Editing VLAN Groups . . . . . . . . . . . . . . . . . . . . . . . . .		4-198
Table 4-53 Configuring VLAN Interfaces . . . . . . . . . . . . . . . . . . .		4-201
Table 4-54 Show VLAN Commands . . . . . . . . . . . . . . . . . . . . . . .		4-208
Table 4-55 Private VLAN Commands . . . . . . . . . . . . . . . . . . . . . .		4-209
Table 4-56 GVRP and Bridge Extension Commands . . . . . . . . . .		4-216
Table 4-57	Priority Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4-221

xvi

TABLES

Table 4-58 Priority Commands (Layer 2) . . . . . . . . . . . . . . . . . . . . 4-221 Table 4-59 Default CoS Priority Levels . . . . . . . . . . . . . . . . . . . . . . 4-225 Table 4-60 Priority Commands (Layer 3 and 4) . . . . . . . . . . . . . . . 4-228 Table 4-61 Mapping IP Precedence Values . . . . . . . . . . . . . . . . . . . 4-231 Table 4-62 IP DSCP to CoS Values . . . . . . . . . . . . . . . . . . . . . . . . 4-233 Table 4-63 Multicast Filtering Commands . . . . . . . . . . . . . . . . . . . 4-237 Table 4-64 IGMP Snooping Commands . . . . . . . . . . . . . . . . . . . . . 4-237 Table 4-65 IGMP Query Commands (Layer 2) . . . . . . . . . . . . . . . 4-241 Table 4-66 Static Multicast Routing Commands . . . . . . . . . . . . . . . 4-246 Table 4-67 IP Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . 4-248 Table B-1 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

xvii

TABLES

xviii

		F
	FIGURES
Figure 3-1	Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . 3-3
Figure 3-2	Panel Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 3-4
Figure 3-3	System Information . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-12
Figure 3-4	Switch Information . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-14
Figure 3-5	Bridge Extension Configuration . . . . . . . . . . . . . . . .	. . . 3-16
Figure 3-6	Manual IP Configuration . . . . . . . . . . . . . . . . . . . . .	. . . 3-18
Figure 3-7	DHCP IP Configuration . . . . . . . . . . . . . . . . . . . . . .	. . . 3-19
Figure 3-8	Operation Code Image File Transfer . . . . . . . . . . . .	. . . 3-22
Figure 3-9	Select Start-Up Operation File . . . . . . . . . . . . . . . . .	. . . 3-23
Figure 3-10	Deleting Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-23
Figure 3-11	Copy Configuration Settings . . . . . . . . . . . . . . . . . .	. . . 3-26
Figure 3-12	Setting the Startup Configuration Settings . . . . . . . .	. . . 3-27
Figure 3-13	Console Port Settings . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-29
Figure 3-14	Enabling Telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-32
Figure 3-15	System Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-35
Figure 3-16	Remote Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-37
Figure 3-17	Displaying Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-38
Figure 3-18	Enabling and Configuring SMTP Alerts . . . . . . . . .	. . . 3-40
Figure 3-19	Resetting the System . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-41
Figure 3-20	SNTP Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-43
Figure 3-21	Setting the System Clock . . . . . . . . . . . . . . . . . . . . .	. . . 3-44
Figure 3-22	Configuring SNMP Community Strings . . . . . . . . .	. . . 3-46
Figure 3-23	Configuring IP Trap Managers . . . . . . . . . . . . . . . . .	. . . 3-47
Figure 3-24	Access Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-49
Figure 3-25	Authentication Settings . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-53
Figure 3-26	HTTPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-56
Figure 3-27	SSH Host-Key Settings . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-62
Figure 3-28	SSH Server Settings . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-64
Figure 3-29	Configuring Port Security . . . . . . . . . . . . . . . . . . . . .	. . . 3-67
Figure 3-30	802.1X Global Information . . . . . . . . . . . . . . . . . . .	. . . 3-69
Figure 3-31	802.1X Configuration . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-70
Figure 3-32	802.1X Port Configuration . . . . . . . . . . . . . . . . . . . .	. . . 3-72
Figure 3-33	Displaying 802.1X Port Statistics . . . . . . . . . . . . . . .	. . . 3-75
Figure 3-34	Creating a Web IP Filter List . . . . . . . . . . . . . . . . . .	. . . 3-77
Figure 3-35	Selecting ACL Type . . . . . . . . . . . . . . . . . . . . . . . . .	. . . 3-80
Figure 3-36	ACL Configuration - Standard IP . . . . . . . . . . . . . .	. . . 3-81

xix

FIGURES

Figure 3-37 ACL Configuration - Extended IP . . . . . . . . . . . . . . . . . 3-83 Figure 3-38 ACL Configuration - MAC . . . . . . . . . . . . . . . . . . . . . . . 3-85 Figure 3-39 Binding a Port to an ACL . . . . . . . . . . . . . . . . . . . . . . . . 3-86 Figure 3-40 Displaying Port/Trunk Information . . . . . . . . . . . . . . . 3-88 Figure 3-41 Port/Trunk Configuration . . . . . . . . . . . . . . . . . . . . . . . 3-92 Figure 3-42 Static Trunk Configuration . . . . . . . . . . . . . . . . . . . . . . . 3-95 Figure 3-43 LACP Trunk Configuration . . . . . . . . . . . . . . . . . . . . . . 3-97 Figure 3-44 LACP - Aggregation Port . . . . . . . . . . . . . . . . . . . . . . . 3-100 Figure 3-45 LACP - Port Counters Information . . . . . . . . . . . . . . . 3-102 Figure 3-46 LACP - Port Internal Information . . . . . . . . . . . . . . . . 3-105 Figure 3-47 LACP - Port Neighbors Information . . . . . . . . . . . . . . 3-107 Figure 3-48 Port Broadcast Control . . . . . . . . . . . . . . . . . . . . . . . . . 3-109 Figure 3-49 Mirror Port Configuration . . . . . . . . . . . . . . . . . . . . . . 3-111 Figure 3-50 Rate Limit Granularity Configuration . . . . . . . . . . . . . 3-112 Figure 3-51 Output Rate Limit Port Configuration . . . . . . . . . . . . 3-114 Figure 3-52 Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-119 Figure 3-53 Configuring a Static Address Table . . . . . . . . . . . . . . . 3-122 Figure 3-54 Configuring a Dynamic Address Table . . . . . . . . . . . . 3-123 Figure 3-55 Setting the Address Aging Time . . . . . . . . . . . . . . . . . . 3-124 Figure 3-56 STA Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-128 Figure 3-57 STA Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-133 Figure 3-58 STA Port Information . . . . . . . . . . . . . . . . . . . . . . . . . 3-137 Figure 3-59 STA Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . 3-141 Figure 3-60 Enabling GVRP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-146 Figure 3-61 VLAN Basic Information . . . . . . . . . . . . . . . . . . . . . . . 3-147 Figure 3-62 Displaying Current VLANs . . . . . . . . . . . . . . . . . . . . . 3-148 Figure 3-63 Configuring a VLAN Static List . . . . . . . . . . . . . . . . . . 3-150 Figure 3-64 Configuring a VLAN Static Table . . . . . . . . . . . . . . . . 3-153 Figure 3-65 VLAN Static Membership by Port . . . . . . . . . . . . . . . . 3-154 Figure 3-66 VLAN Port Configuration . . . . . . . . . . . . . . . . . . . . . . 3-157 Figure 3-67 Private VLAN Information . . . . . . . . . . . . . . . . . . . . . 3-160 Figure 3-68 Private VLAN Configuration . . . . . . . . . . . . . . . . . . . . 3-161 Figure 3-69 Private VLAN Association . . . . . . . . . . . . . . . . . . . . . . 3-162 Figure 3-70 Private VLAN Port Information . . . . . . . . . . . . . . . . . 3-164 Figure 3-71 Private VLAN Port Configuration . . . . . . . . . . . . . . . . 3-166 Figure 3-72 Port Priority Configuration . . . . . . . . . . . . . . . . . . . . . . 3-168 Figure 3-73 Traffic Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-171

xx

FIGURES

Figure 3-74 Queue Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-172 Figure 3-75 Configuring Queue Scheduling . . . . . . . . . . . . . . . . . . . 3-173 Figure 3-76 IP Precedence/DSCP Priority Status . . . . . . . . . . . . . . 3-175 Figure 3-77 Mapping IP Precedence Priority Values . . . . . . . . . . . . 3-176 Figure 3-78 Mapping IP DSCP Priority Values . . . . . . . . . . . . . . . . 3-178 Figure 3-79 IP Port Priority Status . . . . . . . . . . . . . . . . . . . . . . . . . . 3-180 Figure 3-80 IP Port Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-180 Figure 3-81 ACL CoS Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-182 Figure 3-82 IGMP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-186 Figure 3-83 Multicast Router Port Information . . . . . . . . . . . . . . . 3-188 Figure 3-84 Static Multicast Router Port Configuration . . . . . . . . . 3-189 Figure 3-85 IP Multicast Registration Table . . . . . . . . . . . . . . . . . . 3-190 Figure 3-86 IGMP Member Port Table . . . . . . . . . . . . . . . . . . . . . . 3-192

xxi

FIGURES

xxii

CHAPTER 1

INTRODUCTION

This switch provides a broad range of features for Layer 2 switching. It includes a management agent that allows you to configure the features listed in this manual. The default configuration can be used for most of the features provided by this switch. However, there are many options that you should configure to maximize the switch’s performance for your particular network environment.

Key Features

	Table 1-1 Key Features
Feature	Description
Configuration	Backup to TFTP server
Backup and
Restore
Authentication	Console, Telnet, web – User name / password, RADIUS,
	TACACS+
	Web – HTTPS; Telnet – SSH
	SNMP – Community strings
	Port – IEEE 802.1X, MAC address filtering
Access Control	Supports up to 88 IP or MAC ACLs
Lists
DHCP Client	Supported
Port Configuration	Speed, duplex mode and flow control
Rate Limiting	Input and output rate limiting per port
Port Mirroring	One port mirrored to a single analysis port

1-1

INTRODUCTION

	Table 1-1 Key Features
Feature	Description
Port Trunking	Supports up to 4 trunks using either static or dynamic
	trunking (LACP)
Broadcast Storm	Supported
Control
Static Address	Up to 8K MAC addresses in the forwarding table
IEEE 802.1D	Supports dynamic data switching and addresses learning
Bridge
Store-and-Forward	Supported to ensure wire-speed switching while eliminating
Switching	bad frames
Spanning Tree	Supports standard STP and Rapid Spanning Tree Protocol
Algorithm	(RSTP)
Virtual LANs	Up to 255 using IEEE 802.1Q, port-based, or private
	VLANs
Traffic	Default port priority, traffic class map, queue scheduling, IP
Prioritization	Precedence or Differentiated Services Code Point (DSCP),
	and TCP/UDP Port
Multicast Filtering	Supports IGMP snooping and query

Description of Software Features

The switch provides a wide range of advanced performance enhancing features. Flow control eliminates the loss of packets due to bottlenecks caused by port saturation. Broadcast storm suppression prevents broadcast traffic storms from engulfing the network. Port-based and private VLANs, plus support for automatic GVRP VLAN registration provide traffic security and efficient use of network bandwidth. CoS priority queueing ensures the minimum delay for moving real-time multimedia data across the network. While multicast filtering provides support for real-time network applications. Some of the management features are briefly described below.

1-2

DESCRIPTION OF SOFTWARE FEATURES

Configuration Backup and Restore – You can save the current configuration settings to a file on a TFTP server, and later download this file to restore the switch configuration settings.

Authentication – This switch authenticates management access via the console port, Telnet or web browser. User names and passwords can be configured locally or can be verified via a remote authentication server (i.e., RADIUS or TACACS+). Port-based authentication is also supported via the IEEE 802.1X protocol. This protocol uses the Extensible Authentication Protocol over LANs (EAPOL) to request user credentials from the 802.1X client, and then verifies the client’s right to access the network via an authentication server.

Other authentication options include HTTPS for secure management access via the web, SSH for secure management access over a Telnet-equivalent connection, IP address filtering for SNMP/web/Telnet management access, and MAC address filtering for port access.

Access Control Lists – ACLs provide packet filtering for IP frames (based on address, protocol, TCP/UDP port number or TCP control code) or any frames (based on MAC address or Ethernet type). ACLs can be used to improve performance by blocking unnecessary network traffic or to implement security controls by restricting access to specific network resources or protocols.

Port Configuration – You can manually configure the speed, duplex mode, and flow control used on specific ports, or use auto-negotiation to detect the connection settings used by the attached device. Use the full-duplex mode on ports whenever possible to double the throughput of switch connections. Flow control should also be enabled to control network traffic during periods of congestion and prevent the loss of packets when port buffer thresholds are exceeded. The switch supports flow control based on the IEEE 802.3x standard.

1-3

INTRODUCTION

Rate Limiting – This feature controls the maximum rate for traffic transmitted or received on an interface. Rate limiting is configured on interfaces at the edge of a network to limit traffic into or out of the network. Traffic that falls within the rate limit is transmitted, while packets that exceed the acceptable amount of traffic are dropped.

Port Mirroring – The switch can unobtrusively mirror traffic from any port to a monitor port. You can then attach a protocol analyzer or RMON probe to this port to perform traffic analysis and verify connection integrity.

Port Trunking – Ports can be combined into an aggregate connection. Trunks can be manually set up or dynamically configured using IEEE 802.3ad Link Aggregation Control Protocol (LACP). The additional ports dramatically increase the throughput across any connection, and provide redundancy by taking over the load if a port in the trunk should fail. The switch supports up to four trunks.

Broadcast Storm Control – Broadcast suppression prevents broadcast traffic from overwhelming the network. When enabled on a port, the level of broadcast traffic passing through the port is restricted. If broadcast traffic rises above a pre-defined threshold, it will be throttled until the level falls back beneath the threshold.

Static Addresses – A static address can be assigned to a specific interface on this switch. Static addresses are bound to the assigned interface and will not be moved. When a static address is seen on another interface, the address will be ignored and will not be written to the address table. Static addresses can be used to provide network security by restricting access for a known host to a specific port.

IEEE 802.1D Bridge – The switch supports IEEE 802.1D transparent bridging. The address table facilitates data switching by learning addresses, and then filtering or forwarding traffic based on this information. The address table supports up to 8K addresses.

1-4