L4TM Span

[Chris Allen]

I am new to Ironport and new to this site. I understand that the L4TM can use a SPAN port on a L2 switch but I was wondering if you can span a vlan for the L4TM. Thanks in Advance.

[jowolfer]

Chris,

The L4TM ports (T1 / T2) will accept traffic from your VLAN, even if it the traffic contains VLAN tags.

The instructions below will work for a Catalyst switch running IOS:

(config)# monitor session source vlan both
(config)# monitor session destination interface

Example:
SPAN all traffic going in and out of Vlan10 and send it out fast ethernet 1/2

(config)# monitor session 1 source vlan 10 both
(config)# monitor session 1 destination interface fa1/2

Cheers,

Josh