Cisco HWIC-4ESW - EtherSwitch HWIC Switch Manuale utente

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Cisco HWIC-4ESW and HWIC-D-9ESW

EtherSwitch Interface Cards

First Published: May 17, 2005

Last Updated: April 15, 2006

This document provides configuration tasks for the 4-port Cisco HWIC-4ESW and the 9-port

Cisco HWIC-D-9ESW EtherSwitch high-speed WAN interface cards (HWICs) hardware feature

supported on Cisco 1800 (modular), Cisco 2800, and Cisco 3800 series integrated services routers.

Cisco EtherSwitch HWICs are 10/100BASE-T Layer 2 Ethernet switches with Layer 3 routing

capability. (Layer 3 routing is forwarded to the host and is not actually performed at the switch.) Traffic

between different VLANs on a switch is routed through the router platform. Any one port on a

Cisco EtherSwitch HWIC may be configured as a stacking port to link to another Cisco EtherSwitch

HWIC or EtherSwitch network module in the same system. An optional power module can also be added

to provide inline power for IP telephones. The HWIC-D-9ESW HWIC requires a double-wide card slot.

This hardware feature does not introduce any new or modified Cisco IOS commands.

Finding Feature Information in This Module

Your Cisco IOS software release may not support all of the features documented in this module. To reach

links to specific feature documentation in this module and to see a list of the releases in which each feature is

supported, use the “Feature Information for the Cisco HWIC-4ESW and the Cisco HWIC-D-9ESW

EtherSwitch Cards” section on page 117.

Finding Support Information for Platforms and Cisco IOS Software Images

Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image

support. Access Cisco Feature Navigator at http://www.cisco.com/go/fn. You must have an account on

Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at

the login dialog box and follow the instructions that appear.

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

Contents

Book Title

Contents

The following sections provide information about the Cisco EtherSwitch HWICs.

•Prerequisites for EtherSwitch HWICs, page 2

•Restrictions for EtherSwitch HWICs, page 2

•Information About EtherSwitch HWICs, page 3

•How to Configure EtherSwitch HWICs, page 5

•Configuration Examples for EtherSwitch HWICs, page 106

•Additional References, page 116

•Command Reference, page 117

Prerequisites for EtherSwitch HWICs

The following are prerequisites to configuring EtherSwitch HWICs:

•Configuration of IP routing. (Refer to the Cisco IOS IP Configuration Guide.)

•Use of the Cisco IOS T release, beginning with Release 12.3(8)T4 or later for Cisco HWIC-4ESW

and Cisco HWIC-D-9ESW support. (Refer to the Cisco IOS documentation.)

Restrictions for EtherSwitch HWICs

The following restrictions apply to the Cisco HWIC-4ESW and the Cisco HWIC-D-9ESW EtherSwitch

HWICs:

•No more than two Ethernet Switch HWICs or network modules may be installed in a host router.

Multiple Ethernet Switch HWICs or network modules installed in a host router will not act

independently of each other. They must be stacked, as they will not work at all otherwise.

•The ports of a Cisco EtherSwitch HWIC must NOT be connected to the Fast Ethernet/Gigabit

onboard ports of the router.

•There is no inline power on the ninth port (port 8) of the HWIC-D-9ESW card.

•There is no Auto MDIX support on the ninth port (port 8) of the HWIC-D-9ESW card when either

speed or duplex is not set to auto.

•There is no support for online insertion/removal (OIR) of the EtherSwitch HWICs.

•When Ethernet Switches have been installed and configured in a host router, OIR of the

CompactFlash memory card in the router must not occur. OIR of the CompactFlash memory card

will compromise the configuration of the Ethernet Switches.

•VTP pruning is not supported.

•There is a limit of 200 secure MAC addresses per module that can be supported by an EtherSwitch

HWIC.

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

Prerequisites for Installing Two Ethernet Switch Network Modules in a Single Chassis

Book Title

Prerequisites for Installing Two Ethernet Switch Network

Modules in a Single Chassis

A maximum of two Ethernet switch network modules can be installed in a single chassis. If two Ethernet

switch network modules of any type are installed in the same chassis, the following configuration

requirements must be met:

•Both Ethernet switch network modules must have an optional Gigabit Ethernet expansion board

installed.

•An Ethernet crossover cable must be connected to the two Ethernet switch network modules using

the optional Gigabit Ethernet expansion board ports.

•Intrachassis stacking for the optional Gigabit Ethernet expansion board ports must be configured.

For information about intrachassis stacking configuration, see the 16- and 36-Port Ethernet Switch

Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 series feature document.

Note Without this configuration and connection, duplications will occur in the VLAN databases, and

unexpected packet handling may occur.

Information About EtherSwitch HWICs

To configure the Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch HWICs, you should understand the

following concepts:

•VLANs, page 3

•Inline Power for Cisco IP Phones, page 4

•Layer 2 Ethernet Switching, page 4

•802.1x Authentication, page 4

•Spanning Tree Protocol, page 4

•Cisco Discovery Protocol, page 4

•Switched Port Analyzer, page 4

•IGMP Snooping, page 4

•Storm Control, page 5

•Intrachassis Stacking, page 5

•Fallback Bridging, page 5

VLANs

For information on the concept of VLANs, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1047027

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

Information About EtherSwitch HWICs

Book Title

Inline Power for Cisco IP Phones

For information on the concept of inline power for Cisco IP phones, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1048439

Layer 2 Ethernet Switching

For information on the concept of Layer 2 Ethernet switching, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1048478

802.1x Authentication

For information on the concept of 802.1x authentication, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1051006

Spanning Tree Protocol

For information on the concept of Spanning Tree Protocol, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1048458

Cisco Discovery Protocol

For information on the concept of the Cisco Discovery Protocol, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1048498

Switched Port Analyzer

For information on the concept of switched port analyzer, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1053663

IGMP Snooping

For information on the concept of IGMP snooping, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1053727

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

How to Configure EtherSwitch HWICs

Book Title

Storm Control

For information on the concept of storm control, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1051018

Intrachassis Stacking

For information on the concept of intrachassis stacking, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1051061

Fallback Bridging

For information on the concept of fallback bridging, refer to the material at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt1636nm.ht

m#1054833

How to Configure EtherSwitch HWICs

See the following sections for configuration tasks for the EtherSwitch HWICs.

•Configuring VLANs, page 6

•Configuring VLAN Trunking Protocol, page 10

•Configuring Layer 2 Interfaces, page 13

•Configuring 802.1x Authentication, page 23

•Configuring Spanning Tree, page 35

•Configuring MAC Table Manipulation, page 46

•Configuring Cisco Discovery Protocol, page 50

•Configuring the Switched Port Analyzer (SPAN), page 53

•Configuring Power Management on the Interface, page 56

•Configuring IP Multicast Layer 3 Switching, page 57

•Configuring IGMP Snooping, page 61

•Configuring Per-Port Storm Control, page 68

•Configuring Stacking, page 71

•Configuring Fallback Bridging, page 73

•Configuring Separate Voice and Data Subnets, page 89

•Managing the EtherSwitch HWIC, page 92

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

How to Configure EtherSwitch HWICs

Book Title

Configuring VLANs

This section describes how to configure VLANs on the switch and contains the following sections:

•Adding a VLAN Instance, page 6

•Deleting a VLAN Instance from the Database, page 8

Adding a VLAN Instance

A total of 15 VLANs can be supported by an EtherSwitch HWIC.

Follow the steps below to configure a Fast Ethernet interface as Layer 2 access.

SUMMARY STEPS

1. enable

2. vlan database

3. vlan vlan_id

4. exit

DETAILED STEPS

Verifying the VLAN Configuration

You can verify the VLAN configuration in VLAN database mode.

Use the show command in VLAN database mode to verify the VLAN configuration, as shown below:

Router(vlan)# show

VLAN ISL Id: 1

Name: default

Command Purpose

Step 1 enable

Example:

Router> enable

Enables privileged EXEC mode.

•Enter your password if prompted.

Step 2 vlan database

Example:

Router# vlan database

Enters VLAN configuration mode.

Step 3 vlan vlan_id

Example:

Router(vlan)# vlan 1

Adds an Ethernet VLAN.

Step 4 exit

Example:

Router(vlan)# exit

Updates the VLAN database, propagates it throughout the

administrative domain, and returns to privileged EXEC mode.

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

How to Configure EtherSwitch HWICs

Book Title

Media Type: Ethernet

VLAN 802.10 Id: 100001

State: Operational

MTU: 1500

Translational Bridged VLAN: 1002

Translational Bridged VLAN: 1003

VLAN ISL Id: 2

Name: VLAN0002

Media Type: Ethernet

VLAN 802.10 Id: 100002

State: Operational

MTU: 1500

VLAN ISL Id: 3

Name: Red_VLAN

Media Type: Ethernet

VLAN 802.10 Id: 100003

State: Operational

MTU: 1500

VLAN ISL Id: 1002

Name: fddi-default

Media Type: FDDI

VLAN 802.10 Id: 101002

State: Operational

MTU: 1500

Bridge Type: SRB

Translational Bridged VLAN: 1

Translational Bridged VLAN: 1003

VLAN ISL Id: 1003

Name: token-ring-default

Media Type: Token Ring

VLAN 802.10 Id: 101003

State: Operational

MTU: 1500

Bridge Type: SRB

Ring Number: 0

Bridge Number: 1

Parent VLAN: 1005

Maximum ARE Hop Count: 7

Maximum STE Hop Count: 7

Backup CRF Mode: Disabled

Translational Bridged VLAN: 1

Translational Bridged VLAN: 1002

VLAN ISL Id: 1004

Name: fddinet-default

Media Type: FDDI Net

VLAN 802.10 Id: 101004

State: Operational

MTU: 1500

Bridge Type: SRB

Bridge Number: 1

STP Type: IBM

VLAN ISL Id: 1005

Name: trnet-default

Media Type: Token Ring Net

VLAN 802.10 Id: 101005

State: Operational

MTU: 1500

Bridge Type: SRB

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

How to Configure EtherSwitch HWICs

Book Title

Bridge Number: 1

STP Type: IBM

Router(vlan)# exit

APPLY completed.

Exiting....

Router#

Enter the show vlan-switch command in EXEC mode using the Cisco IOS CLI to verify the VLAN

configuration, as shown below.

Router# show vlan-switch

VLAN Name Status Ports

---- -------------------------------- --------- ----------------------------------

1 default active Fa0/1/1, Fa0/1/2, Fa0/1/3, Fa0/1/4

Fa0/1/5, Fa0/1/6, Fa0/1/7, Fa0/1/8

Fa0/3/0, Fa0/3/2, Fa0/3/3, Fa0/3/4

Fa0/3/5, Fa0/3/6, Fa0/3/7, Fa0/3/8

2 VLAN0002 active Fa0/1/0

3 Red_VLAN active

1002 fddi-default active

1003 token-ring-default active

1004 fddinet-default active

1005 trnet-default active

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2

---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------

1 enet 100001 1500 - - - - - 1002 1003

2 enet 100002 1500 - - - - - 0 0

3 enet 100003 1500 - - - - - 0 0

1002 fddi 101002 1500 - - - - - 1 1003

1003 tr 101003 1500 1005 0 - - srb 1 1002

1004 fdnet 101004 1500 - - 1 ibm - 0 0

1005 trnet 101005 1500 - - 1 ibm - 0 0

Router#

Deleting a VLAN Instance from the Database

You cannot delete the default VLANs for the different media types: Ethernet VLAN 1 and FDDI or

Token Ring VLANs 1002 to 1005.

Follow the steps below to delete a VLAN from the database.

SUMMARY STEPS

1. enable

2. vlan database

3. no vlan vlan_id

4. exit

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

How to Configure EtherSwitch HWICs

Book Title

DETAILED STEPS

Verifying VLAN Deletion

You can verify that a VLAN has been deleted from the switch in VLAN database mode.

Use the show command in VLAN database mode to verify that a VLAN has been deleted from the

switch, as shown in the following output example:

Router(vlan)# show

VLAN ISL Id: 1

Name: default

Media Type: Ethernet

VLAN 802.10 Id: 100001

State: Operational

MTU: 1500

Translational Bridged VLAN: 1002

Translational Bridged VLAN: 1003

VLAN ISL Id: 1002

Name: fddi-default

Media Type: FDDI

VLAN 802.10 Id: 101002

State: Operational

MTU: 1500

Bridge Type: SRB

Translational Bridged VLAN: 1

Translational Bridged VLAN: 1003

Router(vlan)#

Command Purpose

Step 1 enable

Example:

Router> enable

Enables privileged EXEC mode.

•Enter your password if prompted.

Step 2 vlan database

Example:

Router# vlan database

Enters VLAN configuration mode.

Step 3 no vlan vlan_id

Example:

Router(vlan)# no vlan 1

Deletes an Ethernet VLAN.

Step 4 exit

Example:

Router(vlan)# exit

Updates the VLAN database, propagates it throughout the

administrative domain, and returns to privileged EXEC mode.

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards

How to Configure EtherSwitch HWICs

Book Title

Enter the show vlan-switch brief command in EXEC mode, using the Cisco IOS CLI to verify that a

VLAN has been deleted from the switch, as shown in the following output example:

Router# show vlan-switch brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------

1 default active Fa0/1/0, Fa0/1/1, Fa0/1/2

Fa0/1/3, Fa0/1/4, Fa0/1/5

Fa0/1/6, Fa0/1/7, Fa0/1/8

300 VLAN0300 active

1002 fddi-default active

1003 token-ring-default active

1004 fddinet-default active

1005 trnet-default active

Router#

Configuring VLAN Trunking Protocol

This section describes how to configure the VLAN Trunking Protocol (VTP) on an EtherSwitch HWIC,

and contains the following tasks:

•Configuring a VTP Server, page 10

•Configuring a VTP Client, page 12

•Disabling VTP (VTP Transparent Mode), page 12

•Verifying VTP, page 13

Note VTP pruning is not supported by EtherSwitch HWICs.

Configuring a VTP Server

When a switch is in VTP server mode, you can change the VLAN configuration and have it propagate

throughout the network.

Follow the steps below to configure the switch as a VTP server.

SUMMARY STEPS

1. enable

2. vlan database

3. vtp server

4. vtp domain domain_name

5. vtp password password_value

6. exit

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