SPAN Session - Single Source to Two Destinations - Supported ?

[teevanke]

Hi, I am trying to Span incoming Voip calls from an SBC for voice recording. I have 1xSBC interface but I've two destination Servers - is this supported ?

All interfaces are on the same leaf and it's a Gen 2 leaf - so Access Local.  ACI V.5.2

Works when 1 destination server is configured but when I add the 2nd destination server I see nothing in Wireshark - within SPAN Source Groups, the Operational status is UP on both groups.

I have a Filter in place but it's a broad one - source (SBC) -- destination(0.0.0.0) - UDP & reverse 0.0.0.0 - SBC - UDP.

I've gone through the Span guidelines but it's not clear to me if what I'm trying to do is supported - I've also come across a comment saying on a monitoring application site that ACI "Cannot send from one source to multiple destinations"- Is this correct ?

Thanks.

[Robert Burns · Accepted solution]

At this time an single SPAN session can only have a one destination natively with ACI.  You may want to look into Nexus Data Broker which would be able to replicate a single destination to multiple.  https://www.cisco.com/c/en/us/products/cloud-systems-management/nexus-data-broker/index.html

Robert

[teevanke]

Thanks Robert, that's a shame as I have two recording servers as I am trying to add resilience to the voip recording setup.  I invested in Nexus Dashboard with Insights but I'm not familiar with the ND Data Broker - I'll investigate it. Thanks again.