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Mary
Beginner

nexus span session

I configured below span session in Nexus 1000v:

monitor session 2

source interface e2/1-2

source vlan 3,6-8 tx

filter vlan 3-5,7

destination int E2/5

is the above configuration correct?

4 REPLIES 4
Julio E. Moisa
VIP Mentor

Hi 

Yes but filter should be used if you are monitoring for example a trunk so it will monitor only the vlans configured passing through it, also please check these links:

https://virtuallymikebrown.com/2013/04/13/how-to-configure-span-on-a-nexus-55xx/

https://www.netfort.com/blog/setup-span-ports-cisco-nexus-switches/

Please rate the comment if it is useful

:-)




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<

so the source e2/1-2 must be trunk? can the destination port in the other slot, for example ge3/0/1 rather than ge2/0/5(not e2/5, we are using nexus)? thanks

Hi

if you have a interface trunk and many vlans are passing through it but you want to monitor only certain vlans, you should include on the span session the filter command. 

:-)




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<

I configured below span session in Nexus 1000v:
monitor session 2
source interface e2/1-2
source vlan 3,6-8 tx
filter vlan 3-5,7
destination int E2/5
is the above configuration correct?

Hi,

Apart from Julio message , have a look on the below link for pre-requisite for SPAN.

Nexus 1000V SPAN Requirement

Hope it Helps..

-GI