SMC Networks SMC8624-48T User Manual

TigerSwitch 10/100/1000

Gigabit Ethernet Switch

◆ 24/48 auto-MDI/MDI-X 10/100/1000BASE-T ports

◆ 4 ports shared with 4 SFP transceiver slots

◆ Non-blocking switching architecture

◆ Support for a redundant power unit

◆ Spanning Tree Protocol, Rapid STP, and Multiple STP

◆ Up to six LACP or static 8-port trunks

◆ Layer 2/3/4 CoS support through 8 priority queues

◆ Layer 3/4 traffic priority with IP Precedence and IP DSCP

◆ Full support for VLANs with GVRP

◆ IGMP multicast filtering and snooping

◆ Support for jumbo frames up to 9 KB

◆ Manageable via console, Web, and SNMP/RMON

Management Guide

SMC8624/48T

TigerSwitch 10/100/1000 Management Guide

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

38 Tesla Irvine, CA 92618 Phone: (949) 679-8000

April 2004

Pub. # 150200041000A

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.

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

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.

IMITED

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 (800) 762-4968. Customers are responsible for all shipping charges from their facility to SMC. SMC is responsible for return shipping charges from SMC to customer.

ARRANTY

IMITED 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

ONTENTS

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Console Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Setting Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Setting an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Manual Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Dynamic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Enabling SNMP Management Access . . . . . . . . . . . . . . . . . . . . . 2-9

Community Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Trap Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Displaying System Information . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Displaying Switch Hardware/Software Versions . . . . . . . . . . . 3-14

Displaying Bridge Extension Capabilities . . . . . . . . . . . . . . . . . 3-16

iii

ONTENTS

Setting the Switch’s IP Address . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Manual Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Using DHCP/BOOTP . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Managing Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Downloading System Software from a Server . . . . . . . . . . 3-22

Saving or Restoring Configuration Settings . . . . . . . . . . . . . . . 3-24

Downloading Configuration Settings from a Server . . . . . 3-25

Resetting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Setting the System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Configuring SNTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Setting the Time Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Simple Network Management Protocol . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Setting Community Access Strings . . . . . . . . . . . . . . . . . . . . . . 3-30

Specifying Trap Managers and Trap Types . . . . . . . . . . . . . . . . 3-31

User Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Configuring the Logon Password . . . . . . . . . . . . . . . . . . . . . . . 3-33

Configuring Local/Remote Logon Authentication . . . . . . . . . 3-34

Configuring HTTPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Replacing the Default Secure-site Certificate . . . . . . . . . . 3-40

Configuring the Secure Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

Generating the Host Key Pair . . . . . . . . . . . . . . . . . . . . . . 3-43

Configuring the SSH Server . . . . . . . . . . . . . . . . . . . . . . . . 3-46

Configuring Port Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48

Configuring 802.1x Port Authentication . . . . . . . . . . . . . . . . . . 3-51

Displaying 802.1x Global Settings . . . . . . . . . . . . . . . . . . . 3-52

Configuring 802.1x Global Settings . . . . . . . . . . . . . . . . . . 3-55

Configuring Port Authorization Mode . . . . . . . . . . . . . . . 3-56

Displaying 802.1x Statistics . . . . . . . . . . . . . . . . . . . . . . . . 3-58

Access Control Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-60

Configuring Access Control Lists . . . . . . . . . . . . . . . . . . . . . . . 3-60

Setting the ACL Name and Type . . . . . . . . . . . . . . . . . . . . 3-61

Configuring a Standard IP ACL . . . . . . . . . . . . . . . . . . . . . 3-63

Configuring an Extended IP ACL . . . . . . . . . . . . . . . . . . . 3-64

Configuring a MAC ACL . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67

Configuring ACL Masks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70

Specifying the Mask Type . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70

Configuring an IP ACL Mask . . . . . . . . . . . . . . . . . . . . . . . 3-71

Configuring a MAC ACL Mask . . . . . . . . . . . . . . . . . . . . . 3-74

Binding a Port to an Access Control List . . . . . . . . . . . . . . . . . 3-76

ONTENTS

Filtering Management Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78

Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80

Displaying Connection Status . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80

Configuring Interface Connections . . . . . . . . . . . . . . . . . . . . . . 3-84

Creating Trunk Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-86

Statically Configuring a Trunk . . . . . . . . . . . . . . . . . . . . . . 3-88

Enabling LACP on Selected Ports . . . . . . . . . . . . . . . . . . . 3-89

Configuring LACP Parameters . . . . . . . . . . . . . . . . . . . . . . 3-91

Displaying LACP Port Counters . . . . . . . . . . . . . . . . . . . . 3-94

Displaying LACP Settings and Status for the Local Side . 3-96 Displaying LACP Settings and Status for the Remote Side . . .

3-99

Setting Broadcast Storm Thresholds . . . . . . . . . . . . . . . . . . . . 3-101

Configuring Port Mirroring . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-103

Configuring Rate Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-104

Showing Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-106

Address Table Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-112

Setting Static Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-112

Displaying the Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . 3-114

Changing the Aging Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-115

Spanning Tree Algorithm Configuration . . . . . . . . . . . . . . . . . . . . . . 3-116

Displaying Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-117

Configuring Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-121

Displaying Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 3-126

Configuring Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . . 3-130

Configuring Multiple Spanning Trees . . . . . . . . . . . . . . . . . . . 3-133

Displaying Interface Settings for MSTP . . . . . . . . . . . . . . . . . 3-137

Configuring Interface Settings for MSTP . . . . . . . . . . . . . . . . 3-139

VLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-141

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-141

Assigning Ports to VLANs . . . . . . . . . . . . . . . . . . . . . . . . 3-142

Forwarding Tagged/Untagged Frames . . . . . . . . . . . . . . 3-145

Enabling or Disabling GVRP (Global Setting) . . . . . . . . . . . 3-146

Displaying Basic VLAN Information . . . . . . . . . . . . . . . . . . . 3-146

Displaying Current VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-147

Creating VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-149

Adding Static Members to VLANs (VLAN Index) . . . . . . . . 3-151

ONTENTS

Adding Static Members to VLANs (Port Index) . . . . . . . . . . 3-153

Configuring VLAN Behavior for Interfaces . . . . . . . . . . . . . . 3-154

Configuring Private VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . 3-158

Enabling Private VLANs . . . . . . . . . . . . . . . . . . . . . . . . . 3-158

Configuring Uplink and Downlink Ports . . . . . . . . . . . . 3-159

Configuring Protocol-Based VLANs . . . . . . . . . . . . . . . . . . . 3-159

Configuring Protocol Groups . . . . . . . . . . . . . . . . . . . . . 3-160

Mapping Protocols to VLANs . . . . . . . . . . . . . . . . . . . . . 3-161

Class of Service Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-163

Setting the Default Priority for Interfaces . . . . . . . . . . . . . . . . 3-163

Mapping CoS Values to Egress Queues . . . . . . . . . . . . . . . . . 3-165

Selecting the Queue Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-167

Setting the Service Weight for Traffic Classes . . . . . . . . . . . . 3-168

Mapping Layer 3/4 Priorities to CoS Values . . . . . . . . . . . . . 3-169

Selecting IP Precedence/DSCP Priority . . . . . . . . . . . . . . . . . 3-170

Mapping IP Precedence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-171

Mapping DSCP Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-173

Mapping IP Port Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-175

Mapping CoS Values to ACLs . . . . . . . . . . . . . . . . . . . . . . . . . 3-177

Changing Priorities Based on ACL Rules . . . . . . . . . . . . . . . . 3-178

Multicast Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-181

Layer 2 IGMP (Snooping and Query) . . . . . . . . . . . . . . . . . . . 3-182

Configuring IGMP Snooping and Query Parameters . . . 3-182 Displaying Interfaces Attached to a Multicast Router . . 3-185

Specifying Static Interfaces for a Multicast Router . . . . . 3-186

Displaying Port Members of Multicast Services . . . . . . . 3-187

Assigning Ports to Multicast Services . . . . . . . . . . . . . . . 3-188

Configuring Domain Name Service . . . . . . . . . . . . . . . . . . . . . . . . . . 3-190

Configuring General DNS Server Parameters . . . . . . . . . . . . 3-190

Configuring Static DNS Host to Address Entries . . . . . . . . . 3-193

Displaying the DNS Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-195

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

ONTENTS

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

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

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

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

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

password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

exec-timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

password-thresh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

silent-time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

databits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

parity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

stopbits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24

disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24

show line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

General Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27

configure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28

show history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28

reload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29

end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

quit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

vii

ONTENTS

System Management Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32

Device Designation Commands . . . . . . . . . . . . . . . . . . . . . . . . 4-33

prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33

hostname . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

Secure Shell Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

ip ssh server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48

ip ssh timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49

ip ssh authentication-retries . . . . . . . . . . . . . . . . . . . . . . . . 4-50

ip ssh server-key size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51

delete public-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51

ip ssh crypto host-key generate . . . . . . . . . . . . . . . . . . . . . 4-52

ip ssh crypto zeroize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53

ip ssh save host-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54

show ip ssh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54

show ssh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55

show public-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56

Event Logging Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

logging on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

logging history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59

logging host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60

logging facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61

logging trap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62

clear logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62

show logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63

viii

ONTENTS

SMTP Alert Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65

logging sendmail host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66

logging sendmail level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67

logging sendmail source-email . . . . . . . . . . . . . . . . . . . . . . 4-67

logging sendmail destination-email . . . . . . . . . . . . . . . . . . 4-68

logging sendmail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-69

show logging sendmail . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-69

Time Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-70

sntp server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71

sntp poll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-72

sntp client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-72

sntp broadcast client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74

show sntp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74

clock timezone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75

calendar set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76

show calendar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76

System Status Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77

show startup-config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77

show running-config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-80

show system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-82

show users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83

show version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83

Frame Size Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84

jumbo frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84

Flash/File Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85

copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-86

delete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-89

dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-90

whichboot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-91

boot system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-92

Authentication Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-93

Authentication Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-93

authentication login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-94

RADIUS Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-95

radius-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-95

radius-server port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-96

radius-server key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-97

ONTENTS

radius-server retransmit . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-97

radius-server timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-98

show radius-server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-98

TACACS+ Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-99

tacacs-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-99

tacacs-server port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-100

tacacs-server key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-101

show tacacs-server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-101

Port Security Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-102

port security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-102

802.1x Port Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-104

authentication dot1x default . . . . . . . . . . . . . . . . . . . . . . . 4-105

dot1x default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-106

dot1x max-req . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-106

dot1x port-control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-107

dot1x operation-mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-108

dot1x re-authenticate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-108

dot1x re-authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-109

dot1x timeout quiet-period . . . . . . . . . . . . . . . . . . . . . . . . 4-109

dot1x timeout re-authperiod . . . . . . . . . . . . . . . . . . . . . . 4-110

dot1x timeout tx-period . . . . . . . . . . . . . . . . . . . . . . . . . . 4-110

show dot1x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-111

Access Control List Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-114

IP ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-116

access-list ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-118

permit, deny (Standard ACL) . . . . . . . . . . . . . . . . . . . . . 4-119

permit, deny (Extended ACL) . . . . . . . . . . . . . . . . . . . . . 4-120

show ip access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-123

access-list ip mask-precedence . . . . . . . . . . . . . . . . . . . . . 4-123

mask (IP ACL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-125

show access-list ip mask-precedence . . . . . . . . . . . . . . . . 4-128

ip access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-129

show ip access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-130

map access-list ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-130

show map access-list ip . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-132

match access-list ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-133

show marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-134

ONTENTS

MAC ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-135

access-list mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-136

permit, deny (MAC ACL) . . . . . . . . . . . . . . . . . . . . . . . . . 4-137

show mac access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-139

access-list mac mask-precedence . . . . . . . . . . . . . . . . . . . 4-139

mask (MAC ACL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-140

show access-list mac mask-precedence . . . . . . . . . . . . . . 4-143

mac access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-144

show mac access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-145

map access-list mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-145

show map access-list mac . . . . . . . . . . . . . . . . . . . . . . . . . 4-146

match access-list mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-147

ACL Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-148

show access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-148

show access-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-149

SNMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-149

snmp community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-150

snmp contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-151

snmp location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-151

snmp host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-152

snmp enable traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-154

show snmp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-155

DNS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-157

ip host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-158

clear host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-159

ip domain-name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-159

ip domain-list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-160

ip name-server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-162

ip domain-lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-163

show hosts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-164

show dns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-165

show dns cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-165

clear dns cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-166

ONTENTS

Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-167

interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-168

description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-168

speed-duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-169

negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-170

capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-172

flowcontrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-173

combo-forced-mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-174

shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-175

switchport broadcast packet-rate . . . . . . . . . . . . . . . . . . . . . . . 4-176

clear counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-177

show interfaces status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-178

show interfaces counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-179

show interfaces switchport . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-181

Mirror Port Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-183

port monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-183

show port monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-184

Rate Limit Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-185

rate-limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-186

Link Aggregation Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-187

channel-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-189

lacp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-190

lacp system-priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-192

lacp admin-key (Ethernet Interface) . . . . . . . . . . . . . . . . . . . . 4-193

lacp admin-key (Port Channel) . . . . . . . . . . . . . . . . . . . . . . . . . 4-194

lacp port-priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-195

show lacp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-196

Address Table Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-200

mac-address-table static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-201

clear mac-address-table dynamic . . . . . . . . . . . . . . . . . . . . . . . 4-202

show mac-address-table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-202

mac-address-table aging-time . . . . . . . . . . . . . . . . . . . . . . . . . . 4-203

show mac-address-table aging-time . . . . . . . . . . . . . . . . . . . . . 4-204

xii

ONTENTS

Spanning Tree Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-205

spanning-tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-206

spanning-tree mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-207

spanning-tree forward-time . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-209

spanning-tree hello-time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-210

spanning-tree max-age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-210

spanning-tree priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-211

spanning-tree pathcost method . . . . . . . . . . . . . . . . . . . . . . . . 4-212

spanning-tree transmission-limit . . . . . . . . . . . . . . . . . . . . . . . 4-213

spanning-tree mst-configuration . . . . . . . . . . . . . . . . . . . . . . . 4-213

mst vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-214

mst priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-215

name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-216

revision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-217

max-hops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-218

spanning-tree spanning-disabled . . . . . . . . . . . . . . . . . . . . . . . 4-219

spanning-tree cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-219

spanning-tree port-priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-220

spanning-tree edge-port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-221

spanning-tree portfast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-222

spanning-tree link-type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-223

spanning-tree mst cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-224

spanning-tree mst port-priority . . . . . . . . . . . . . . . . . . . . . . . . 4-226

spanning-tree protocol-migration . . . . . . . . . . . . . . . . . . . . . . 4-227

show spanning-tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-228

show spanning-tree mst configuration . . . . . . . . . . . . . . . . . . . 4-230

VLAN Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-231

Editing VLAN Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-231

vlan database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-232

vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-233

Configuring VLAN Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . 4-234

interface vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-235

switchport mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-236

switchport acceptable-frame-types . . . . . . . . . . . . . . . . . 4-237

switchport ingress-filtering . . . . . . . . . . . . . . . . . . . . . . . 4-238

switchport native vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-239

switchport allowed vlan . . . . . . . . . . . . . . . . . . . . . . . . . . 4-240

switchport forbidden vlan . . . . . . . . . . . . . . . . . . . . . . . . . 4-241

xiii

ONTENTS

Displaying VLAN Information . . . . . . . . . . . . . . . . . . . . . . . . 4-242

show vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-242

Configuring Protocol-based VLANs . . . . . . . . . . . . . . . . . . . . 4-243

protocol-vlan protocol-group (Configuring Groups) . . . 4-244 protocol-vlan protocol-group (Configuring Interfaces) . 4-245

show protocol-vlan protocol-group . . . . . . . . . . . . . . . . . 4-246

show interfaces protocol-vlan protocol-group . . . . . . . . 4-247

Configuring Private VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . 4-248

pvlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-248

show pvlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-249

GVRP and Bridge Extension Commands . . . . . . . . . . . . . . . . . . . . . 4-250

bridge-ext gvrp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-250

show bridge-ext . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-251

switchport gvrp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-252

show gvrp configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 4-252

garp timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-253

show garp timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-254

Priority Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-255

Priority Commands (Layer 2) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-256

switchport priority default . . . . . . . . . . . . . . . . . . . . . . . . 4-256

queue mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-258

queue bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-259

queue cos-map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-260

show queue mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-261

show queue bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-262

show queue cos-map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-262

Priority Commands (Layer 3 and 4) . . . . . . . . . . . . . . . . . . . . . 4-263

map ip port (Global Configuration) . . . . . . . . . . . . . . . . . 4-264

map ip port (Interface Configuration) . . . . . . . . . . . . . . . 4-264

map ip precedence (Global Configuration) . . . . . . . . . . . 4-265

map ip precedence (Interface Configuration) . . . . . . . . . 4-266

map ip dscp (Global Configuration) . . . . . . . . . . . . . . . . 4-267

map ip dscp (Interface Configuration) . . . . . . . . . . . . . . . 4-268

show map ip port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-269

show map ip precedence . . . . . . . . . . . . . . . . . . . . . . . . . 4-270

show map ip dscp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-271

xiv

ONTENTS

Multicast Filtering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-272

IGMP Snooping Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 4-272

ip igmp snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-273

ip igmp snooping vlan static . . . . . . . . . . . . . . . . . . . . . . . 4-274

ip igmp snooping version . . . . . . . . . . . . . . . . . . . . . . . . . 4-275

show ip igmp snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-276

show mac-address-table multicast . . . . . . . . . . . . . . . . . . 4-276

IGMP Query Commands (Layer 2) . . . . . . . . . . . . . . . . . . . . . 4-277

ip igmp snooping querier . . . . . . . . . . . . . . . . . . . . . . . . . 4-278

ip igmp snooping query-count . . . . . . . . . . . . . . . . . . . . . 4-278

ip igmp snooping query-interval . . . . . . . . . . . . . . . . . . . . 4-279

ip igmp snooping query-max-response-time . . . . . . . . . . 4-280

ip igmp snooping router-port-expire-time . . . . . . . . . . . . 4-281

Static Multicast Routing Commands . . . . . . . . . . . . . . . . . . . . 4-282

ip igmp snooping vlan mrouter . . . . . . . . . . . . . . . . . . . . 4-282

show ip igmp snooping mrouter . . . . . . . . . . . . . . . . . . . 4-283

IP Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-284

Basic IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-284

ip address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-285

ip dhcp restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-286

ip default-gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-287

show ip interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-288

show ip redirects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-288

ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-289

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

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

Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

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

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

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

Glossary

Index

ABLES

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. HTTPS Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Table 3-4. 802.1x Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58

Table 3-5. LACP Port Counter Information . . . . . . . . . . . . . . . . . . . . 3-94

Table 3-6. LACP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-96

Table 3-7. LACP Remote Side Settings . . . . . . . . . . . . . . . . . . . . . . . . 3-99

Table 3-8. Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-106

Table 3-9. Egress Queue Priority Mapping . . . . . . . . . . . . . . . . . . . . 3-165

Table 3-10. CoS Priority Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-165

Table 3-11. IP Precedence Prioruty . . . . . . . . . . . . . . . . . . . . . . . . . . 3-171

Table 3-12. Mapping DSCP Priority . . . . . . . . . . . . . . . . . . . . . . . . . . 3-173

Table 3-13. CoS to ACL Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-177

Table 4-1. Command Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Table 4-2. Configuration Commands . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Table 4-3. Keystroke Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Table 4-4. Command Group Index . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Table 4-5. Line Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Table 4-6. General Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

Table 4-7. System Mangement Commands . . . . . . . . . . . . . . . . . . . . . 4-32

Table 4-8. Device Designation Commands . . . . . . . . . . . . . . . . . . . . . 4-33

Table 4-9. User Access Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34

Table 4-10. IP Filter Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37

Table 4-11. Web Server Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40

Table 4-12. Secure Shell Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Table 4-13. SSH Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55

Table 4-14. Event Logging Commands . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

Table 4-15. SMTP Alert Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65

Table 4-16. Time Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-70

Table 4-17. System Status Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77

Table 4-18. Frame Size Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84

Table 4-19. Flash/File Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85

Table 4-20. Authentication Commands . . . . . . . . . . . . . . . . . . . . . . . . . 4-93

Table 4-21. Authentication Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . 4-93

xvi

ABLES

Table 4-22. RADIUS Client Commands . . . . . . . . . . . . . . . . . . . . . . . . 4-95

Table 4-23. TACACS+ Client Commands . . . . . . . . . . . . . . . . . . . . . . 4-99

Table 4-24. Port Security Commands . . . . . . . . . . . . . . . . . . . . . . . . . 4-102

Table 4-25. 802.1x Port Authentication Commands . . . . . . . . . . . . . 4-104

Table 4-26. Access Control List Commands . . . . . . . . . . . . . . . . . . . . 4-116

Table 4-27. IP ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-116

Table 4-28. MAC ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-135

Table 4-29. ACL Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-148

Table 4-30. SNMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-149

Table 4-31. DNS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-157

Table 4-32. Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-167

Table 4-33. Mirror Port Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 4-183

Table 4-34. Rate Limit Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-185

Table 4-35. Link Aggregation Commands . . . . . . . . . . . . . . . . . . . . . 4-187

Table 4-36. Adress Table Commands . . . . . . . . . . . . . . . . . . . . . . . . . 4-200

Table 4-37. Spanning Tree Commands . . . . . . . . . . . . . . . . . . . . . . . . 4-205

Table 4-38. VLAN Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-231

Table 4-39. Editing VLAN Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-231

Table 4-40. Configuring VLAN Interfaces . . . . . . . . . . . . . . . . . . . . . 4-234

Table 4-41. Displaying VLAN Information . . . . . . . . . . . . . . . . . . . . 4-242

Table 4-42. Protocol-based VLAN Commands . . . . . . . . . . . . . . . . . 4-243

Table 4-43. Private VLAN Commands . . . . . . . . . . . . . . . . . . . . . . . . 4-248

Table 4-44. GVRP and Bridge Extension Commands . . . . . . . . . . . . 4-250

Table 4-45. Priority Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-255

Table 4-46. Priority Commands (Layer 2) . . . . . . . . . . . . . . . . . . . . . . 4-256

Table 4-47. Priority Commands (Layer 3 and 4) . . . . . . . . . . . . . . . . . 4-263

Table 4-48. Multicast Filtering Commands . . . . . . . . . . . . . . . . . . . . . 4-272

Table 4-49. IGMP Snooping Commands . . . . . . . . . . . . . . . . . . . . . . 4-272

Table 4-50. IGMP Query Commands (Layer 2) . . . . . . . . . . . . . . . . . 4-277

Table 4-51. Static Multicast Routing Commands . . . . . . . . . . . . . . . . 4-282

Table 4-52. Basic IP Configuration commands . . . . . . . . . . . . . . . . . 4-284

Table B-1. Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

xvii

IGURES

Figure 3-1. Homepage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Figure 3-2. Panel Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Figure 3-3. System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Figure 3-4. Switch Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Figure 3-5. Bridge Extension Configuration . . . . . . . . . . . . . . . . . . . 3-17

Figure 3-6. Manual IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Figure 3-7. DHCP IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Figure 3-8. Operation Code Image File Transfer . . . . . . . . . . . . . . . 3-23

Figure 3-9. Select Start-Up Operation File . . . . . . . . . . . . . . . . . . . . 3-23

Figure 3-10. Downloading Configuration Settings from a Server . . . 3-25

Figure 3-11. Selecting the Startup Configuration File . . . . . . . . . . . . 3-25

Figure 3-12. Resetting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Figure 3-13. SNTP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Figure 3-14. Setting the Time Zone . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Figure 3-15. Setting Community Access Strings . . . . . . . . . . . . . . . . . 3-31

Figure 3-16. Specifying Trap Managers and Trap Types . . . . . . . . . . 3-32

Figure 3-17. Configuring the Logon Password . . . . . . . . . . . . . . . . . . 3-34

Figure 3-18. Setting Local, RADIUS and TACACS Authentication . 3-37

Figure 3-19. HTTPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Figure 3-20. SSH Host-Key Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Figure 3-21. SSH Server Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47

Figure 3-22. Configuring Port Security . . . . . . . . . . . . . . . . . . . . . . . . 3-50

Figure 3-23. 802.1x Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53

Figure 3-24. 802.1x Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56

Figure 3-25. 802.1x Port Configuration . . . . . . . . . . . . . . . . . . . . . . . 3-57

Figure 3-26. 802.1x Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

Figure 3-27. Naming and Choosing ACLs . . . . . . . . . . . . . . . . . . . . . 3-62

Figure 3-28. Configuring Standard IP ACLs . . . . . . . . . . . . . . . . . . . 3-63

Figure 3-29. Configuring Extended IP ACLs . . . . . . . . . . . . . . . . . . . 3-66

Figure 3-30. Configuring MAC ACLs . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Figure 3-31. Choosing ACL Types . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Figure 3-32. Configuring an IP based ACL . . . . . . . . . . . . . . . . . . . . 3-73

Figure 3-33. Configuring a MAC based ACL . . . . . . . . . . . . . . . . . . . 3-75

Figure 3-34. Mapping ACLs to Port Ingress/Egress Queues . . . . . . 3-77

Figure 3-35. Filtering Management Access . . . . . . . . . . . . . . . . . . . . . 3-79

Figure 3-36. Port Status Information . . . . . . . . . . . . . . . . . . . . . . . . . 3-81

xviii

IGURES

Figure 3-37. Configuring Port Attributes . . . . . . . . . . . . . . . . . . . . . . 3-86

Figure 3-38. Static Trunk Configuration . . . . . . . . . . . . . . . . . . . . . . . 3-88

Figure 3-39. LACP Port Configuratio . . . . . . . . . . . . . . . . . . . . . . . . . 3-90

Figure 3-40. LACP Aggregation Port Configuration . . . . . . . . . . . . . 3-93

Figure 3-41. Displaying LACP Port Counters Information . . . . . . . . 3-95

Figure 3-42. Displaying LACP Port Information . . . . . . . . . . . . . . . . 3-98

Figure 3-43. Displaying Remote LACP Port Information . . . . . . . . 3-100

Figure 3-44. Enabling Port Broadcast Control . . . . . . . . . . . . . . . . . 3-102

Figure 3-45. Configuring a Mirror Port . . . . . . . . . . . . . . . . . . . . . . 3-104

Figure 3-46. Configuring Output Port Rate Limiting . . . . . . . . . . . . 3-105

Figure 3-47. Displaying Port Statistics . . . . . . . . . . . . . . . . . . . . . . . 3-110

Figure 3-48. Displaying Etherlike and RMON Statistics . . . . . . . . . 3-111

Figure 3-49. Mapping Ports to Static Addresses . . . . . . . . . . . . . . . . 3-113

Figure 3-50. Displaying the MAC Dynamic Address Table . . . . . . . 3-114

Figure 3-51. Setting the Aging Time . . . . . . . . . . . . . . . . . . . . . . . . . 3-115

Figure 3-52. Displaying the Spanning Tree Algorithm . . . . . . . . . . 3-120

Figure 3-53. Configuring the Spanning Tree Algorithm . . . . . . . . . 3-125

Figure 3-54. Displaying STA - Port Status Information . . . . . . . . . 3-130

Figure 3-55. Configuring Spanning Tree Algorithm per Port . . . . . 3-133

Figure 3-56. Configuring Multiple Spanning Trees . . . . . . . . . . . . . 3-135

Figure 3-57. Displaying MSTP Interface Settings . . . . . . . . . . . . . . 3-137

Figure 3-58. MSTP Port Configuration . . . . . . . . . . . . . . . . . . . . . . 3-140

Figure 3-59. Enabling GVRP Status . . . . . . . . . . . . . . . . . . . . . . . . . 3-146

Figure 3-60. Displaying Basic VLAN Information . . . . . . . . . . . . . 3-147

Figure 3-61. Displaying VLAN Information by Port Membership . 3-148

Figure 3-62. Creating Virtual LANs . . . . . . . . . . . . . . . . . . . . . . . . . 3-150

Figure 3-63. Configuring VLAN Port Attributes . . . . . . . . . . . . . . . 3-152

Figure 3-64. Assigning VLAN Port and Trunk Groups . . . . . . . . . 3-154

Figure 3-65. Configuring VLAN Ports . . . . . . . . . . . . . . . . . . . . . . . 3-157

Figure 3-66. Enabling Private VLANS . . . . . . . . . . . . . . . . . . . . . . . 3-158

Figure 3-67. PVLAN Uplink/Downlink Port Configuration . . . . . 3-159

Figure 3-68. Protocil VLAN Configuration . . . . . . . . . . . . . . . . . . . 3-161

Figure 3-69. Mapping Protocols to VLANs . . . . . . . . . . . . . . . . . . . 3-162

Figure 3-70. Configuring Class of Service per Port . . . . . . . . . . . . . 3-164

Figure 3-71. Configuring Ports and Trunks for Class of Service . . . 3-166

Figure 3-72. Setting the Queue Mode . . . . . . . . . . . . . . . . . . . . . . . . 3-167

Figure 3-73. Configuring Class of Service for Each Ingress Queue 3-168

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IGURES

Figure 3-74. Setting IP Precedence/DSCP Priority Status . . . . . . . 3-170

Figure 3-75. Mapping IP Precedence to Class of Service Values . . . 3-172 Figure 3-76. Mapping IP DSCP Priority to Class of Service Values 3-174

Figure 3-77. Globally Enabling the IP Port Priority Status . . . . . . . 3-175

Figure 3-78. IP Port Priority Mapping . . . . . . . . . . . . . . . . . . . . . . . 3-176

Figure 3-79. Changing Priorities Based on ACL Rules . . . . . . . . . . 3-180

Figure 3-80. Configuring Internet Group Management Protocol . . 3-184

Figure 3-81. Mapping Multicast Switch Ports to VLANs . . . . . . . . 3-185

Figure 3-82. Static Multicast Router Port Configuration . . . . . . . . . 3-186

Figure 3-83. Displaying Port Members of Multicast Services . . . . . 3-188

Figure 3-84. Specifying Multicast Port Membership . . . . . . . . . . . . 3-189

Figure 3-85. Configuring DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-192

Figure 3-86. Mapping IP Addresses to a Host Name . . . . . . . . . . . 3-194

Figure 3-87. Displaying the DNS Cache . . . . . . . . . . . . . . . . . . . . . . 3-196

HAPTER

NTRODUCTION

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 and Restore

Authentication Console, Telnet, web – User name / password, RADIUS,

Access Control Lists

Port Configuration Speed, duplex mode and flow control

Rate Limiting Input and output rate limiting per port

Port Mirroring One or more ports mirrored to single analysis port

Port Trunking Supports up to 6 trunks using either static or dynamic

Backup to TFTP server

TACACS+

Web – HTTPS; Telnet – SSH

SNMP – Community strings, IP address filtering

Port – IEEE 802.1x, MAC address filtering

Supports up to 32 IP or MAC ACLs

trunking (LACP)

1-1

NTRODUCTION

Table 1-1. Key Features

Feature Description

Broadcast Storm Control

Static Address Up to 16K MAC addresses in the forwarding table

IEEE 802.1D Bridge

Store-and-Forward Switching

Spanning Tree Protocol

Virtual LANs Up to 255 using IEEE 802.1Q, port-based, protocol-based, or

Traffic Prioritization

Multicast Filtering Supports IGMP snooping and query

Supported

Supports dynamic data switching and addresses learning

Supported to ensure wire-speed switching while eliminating bad frames

Supports standard STP, Rapid Spanning Tree Protocol (RSTP), and Multiple Spanning Trees (MSTP)

private VLANs

Default port priority, traffic class map, queue scheduling, IP Precedence, or Differentiated Services Code Point (DSCP)

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 protocol-based 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.

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.

1-2

ESCRIPTION OF SOFTWARE FEATURES

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 a user name and password 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 by 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.

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.

1-3

NTRODUCTION

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 6 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 16K addresses.

Store-and-Forward Switching – The switch copies each frame into its memory before forwarding them to another port. This ensures that all frames are a standard Ethernet size and have been verified for accuracy with the cyclic redundancy check (CRC). This prevents bad frames from entering the network and wasting bandwidth.

1-4

ESCRIPTION OF SOFTWARE FEATURES

To avoid dropping frames on congested ports, the switch provides 1 MB for frame buffering. This buffer can queue packets awaiting transmission on congested networks.

Spanning Tree Protocol – The switch supports these spanning tree protocols:

Spanning Tree Protocol (STP, IEEE 802.1D) – This protocol adds a level of fault tolerance by allowing two or more redundant connections to be created between a pair of LAN segments. When there are multiple physical paths between segments, this protocol will choose a single path and disable all others to ensure that only one route exists between any two stations on the network. This prevents the creation of network loops. However, if the chosen path should fail for any reason, an alternate path will be activated to maintain the connection.

Rapid Spanning Tree Protocol (RSTP, IEEE 802.1w) – This protocol reduces the convergence time for network topology changes to about 10% of that required by the older IEEE 802.1D STP standard. It is intended as a complete replacement for STP, but can still interoperate with switches running the older standard by automatically reconfiguring ports to STP-compliant mode if they detect STP protocol messages from attached devices.

Multiple Spanning Tree Protocol (MSTP, IEEE 802.1s) – This protocol is a direct extension of RSTP. It can provide an independent spanning tree for different VLANs. It simplifies network management, provides for even faster convergence than RSTP by limiting the size of each region, and prevents VLAN members from being segmented from the rest of the group (as sometimes occurs with IEEE 802.1D STP).

1-5

NTRODUCTION

Virtual LANs – The switch supports up to 255 VLANs. A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network. The switch supports tagged VLANs based on the IEEE 802.1Q standard. Members of VLAN groups can be dynamically learned via GVRP, or ports can be manually assigned to a specific set of VLANs. This allows the switch to restrict traffic to the VLAN groups to which a user has been assigned. By segmenting your network into VLANs, you can:

• Eliminate broadcast storms which severely degrade performance in a flat network.

• Simplify network management for node changes/moves by remotely configuring VLAN membership for any port, rather than having to manually change the network connection.

• Provide data security by restricting all traffic to the originating VLAN.

• Use private VLANs to restrict traffic to pass only between data ports and the uplink ports, thereby isolating adjacent ports within the same VLAN, and allowing you to limit the total number of VLANs that need to be configured.

Traffic Prioritization – This switch prioritizes each packet based on the required level of service, using four priority queues with strict or Weighted Round Robin Queuing. It uses IEEE 802.1p and 802.1Q tags to prioritize incoming traffic based on input from the end-station application. These functions can data and best-effort data.

be used to provide independent priorities for delay-sensitive

This switch also supports several common methods of prioritizing layer 3/ 4 traffic to meet application requirements. Traffic can be prioritized based on the priority bits in the IP frame’s Type of Service (ToS) octet. When these services are enabled, the priorities are mapped to a Class of Service value by the switch, and the traffic then sent to the corresponding output queue.

Multicast Filtering – Specific multicast traffic can be assigned to its own VLAN to ensure that it does not interfere with normal network traffic and to guarantee real-time delivery by setting the required priority level for the designated VLAN. The switch uses IGMP Snooping and Query to manage multicast group registration.

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