RE: Span port configuration

Monitor source VLAN is going to monitor all the ports that are members of that VLAN on that switch only, so it won't pick up the traffic from the remote switches. You can monitor the source VLAN, send it to an RSPAN VLAN, monitor that VLAN as your source on the destination switch and set the destination to your ports. In your case if VLAN77 is the new voice VLAN, then you'll monitor that as your source, set 111 as the remote destination VLAN.

There is a good example here:

http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a008015c612.shtml#topic5

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of sbabatunde1_at_ca.rr.com
Sent: Wednesday, October 28, 2009 5:14 PM
To: Cisco certification
Subject: Span port configuration

Guy I have this scenario.

I want to monitor traffic from specific phones in different locations on the network. I created a vlan and placed the phones in this vlans (vlan 77).

The destination port for the traffic is four ports on an access switch.

I removed the phones vlan from pruning and can see it where the phones are plugged which is 5 access switches.

Now my question is this. What is the most efficient way I can have this vlans spanned to the ports on one of the access switches from the other access switches.

This is what I have done so far;

On the switch with the destination ports I have this configured;

monitor session 5 source vlan 77
monitor session 5 destination interface Fa1/0/34 , Fa1/0/36 , Fa1/0/40 , Fa1/0/42

on the remote switchesb I want to go configure;

monitor session 5 source vlan 77
monitor session 5 destination remote vlan 111 (Vlan 111 is where the destination ports are in)

Is this what I need to get this done or can I simply use the second commands only or am I wrong entirely?

The other thing I was thinking is go to my distribution switches and configures this

monitor session 5 source vlan 77
monitor session 5 destination remote vlan 111

(since this location is my root bridge for both vlans)

Thank you for the input.

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Received on Wed Oct 28 2009 - 17:29:42 ART