Cisco NM-16ESW - EtherSwitch Switch Bedienungsanleitung PDF herunterladen (Seite 72)

Configuring the Cisco Gigabit EtherSwitch EHWIC

How to Configure Gigabit EtherSwitch EHWICs

Configuring the Cisco Gigabit EtherSwitch EHWIC

OL-23155-01

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 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 two 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 type 0/slot/port | vlan vlan-id} [, | - |

both | tx | rx]

3. end

DETAILED STEPS

Use the no monitor session session-id command in global configuration mode to disable SPAN.

Command Purpose

Step 1

configure terminal

Example:

Router#configure terminal

Enters global configuration mode.

Step 2

monitor session session-id {destination | source}

{interface type 0/slot/port | vlan vlan-id} [, | - | both | tx |

rx]

Example:

Router(config)#monitor session 1 destination

interface gigabitethernet 0/1/2

Enables port monitoring for a specific session

(“number”). (Optional) Supply a SPAN destination

interface or source interface.

Step 3

end

Example:

Router(config)#end

Returns to privileged EXEC mode.

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