SPAN port(s) over VSL in 4500X and 5548

[robbyyamry]

Hi all-

  I have a scenario where we have two bonded 4500X in the core and as well as two 5548 Nexus switches that are bonded as well.  On both systems, I need to configure a SPAN.   Can I do the span to a port that is not on the source switch?  For example, on 4500-1 i have a source port for the SPAN and the destination is on 4500-2.  Is this possible or will each physical switch need its own SPAN destination on its respective switch?

Same question goes for the 5548.

Thanks-

[Reza Sharifi]

Hi,

Yes, SPAN source and destination can be on the same switch or use a vlan with different switch as source and destination.

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/25ew/configuration/guide/conf/span.html

HTH

[robbyyamry]

Thanks. Just to be clear....

I want the SPAN source on 4500-2 and the destination on 4500-1.  Same goes for the Nexus 5k.  Is this still correct?

thanks.

[Reza Sharifi]

The 4500s are VSS right? If this the case, they are logically one switch.  So, even though you are doing it between 2 physical switches the config apples to only one switch,

As for the 5ks they are 2 separate switches.  So, as long as you have a layer-2 connection between them you should be able to use a vlan and use RSPAN.

Here is a link for the 5ks.

http://www.cisco.com/c/en/us/support/docs/switches/nexus-5000-series-switches/113501-nexus5000-erspan-config.html

HTH