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

How to Configure EtherSwitch HWICs

Cisco IOS Release 12.3(8)T4

OL-6454-01

Enabling the DNS

If your network devices require connectivity with devices in networks for which you do not control name

assignment, you can assign device names that uniquely identify your devices within the entire

internetwork. The Internet’s global naming scheme, the DNS, accomplishes this task. This service is

enabled by default.

Enabling Switch Port Analyzer

You can monitor traffic on a given port by forwarding incoming and outgoing traffic on the port to

another port in the same VLAN. A Switch Port Analyzer (SPAN) port cannot monitor ports in a different

VLAN, and a SPAN port must be a static-access port. Any number of ports can be defined as SPAN ports,

and any combination of ports can be monitored. SPAN is supported for up to 2 sessions.

Beginning in privileged EXEC mode, follow these steps to enable SPAN.

SUMMARY STEPS

1. configure terminal

2. monitor session session-id {destination | source} {interface | vlan

interface-id

vlan-id

}} [, | - | both | tx | rx]

3. end

DETAILED STEPS

Beginning in privileged EXEC mode, follow these steps to disable SPAN.

SUMMARY STEPS

1. configure terminal

2. no monitor session

session-id

3. end

DETAILED STEPS

Command Purpose

Step 1

Router# configure terminal

Enters global configuration mode.

Step 2

Router(config)# monitor session session-id

{destination | source} {interface | vlan

interface-id

vlan-id

}} [, | - | both | tx | rx]

Enables port monitoring for a specific session (“number”).

Optionally, supply a SPAN destination interface, and a

source interface.

Step 3

Router(config)# end

Returns to privileged EXEC mode.