ACI SPAN Session

[Kevin Smith]

I want to do an ACI SPAN Session, but I need to source three ports/interfaces on a Leaf………can I do that?

[micgarc2 · Accepted solution]

Hi Kevin, 

Yes you can do an access span with multiple interfaces on the same switch for a single SPAN session. You will just have to have a destination IP to send them to that needed to be learned in the fabric (ex like a VM with a learned IP) Here is example showing multiple interfaces defined.

Let me know if this helps!

Thanks,

Michael G. 

[Kevin Smith]

Perfect I will try that thanks

[Kevin Smith]

Spoke to soon....I'm on version 2.0(2f).......It doesn't give me the option to select individual paths, just the entire source EPG path.....your GUI seems to be a newer version, unless I'm looking in the wrong place.   Any ideas?
Thanks

[Kevin Smith]

Spoke to soon....I'm on version 2.0(2f) It doesn't give me the option to select individual paths, just the entire source EPG path your GUI seems to be a newer version, unless I'm looking in the wrong place.   Any ideas?
Thanks

[micgarc2]

Hi Kevin,

You should have the option to bypass configuring a source EPG and just creating source paths instead. Can you take a screenshot of what you are seeing? I do not have a 2.0(2f) fabric readily at this second.

Please let me know, 

Thanks

[Kevin Smith]

Sure see below

[micgarc2]

Let me check if this is just supported in later versions

[micgarc2]

It looks like you are in fabric polices not access policies? What port are you trying to SPAN?  A front panel port or a port inside the fabric facing the spine?

[Kevin Smith]

good catch..........I was not in access policies.......I see where I can lock it down to the leaf host port......let me see how it goes.

[Kevin Smith]

I configured it, and my "Operation State" didn't come up it stayed "down" when I enabled the "Administrative state"......any ideas?

[micgarc2]

Also to clarify, if the destination is an IP on a different leaf this is considered an ERSPAN. If not and you are sending it to a specific interface on the same leaf this would be a local span.

[Kevin Smith]

OK.....understood