Port span for trunk port with multiple VXLANs


Hi, I'm new to Cumulus and just wondering if anyone knows how to get the port span working on trunk port with multiple VXLANs? I can confirm that port span works on access port.
I used this reference guide, but couldn't get it working on trunk port (with at least 2 VXLANs).
https://docs.cumulusnetworks.com/display/DOCS/Network+Troubleshooting.
Thanks in advance.

3 replies

Userlevel 4
Can you post your config?

Sean Cavanaugh wrote:

Can you post your config?

Hey Seam, thanks for looking into this . this is the config added on span.rules, where swp1.123 is the trunk port with VXLAN123.
[iptables]
-A FORWARD --in-interface swp1.123 -j SPAN --dport swp30
-A FORWARD --out-interface swp1.123 -j SPAN --dport swp30


if I remove 123 from interface it worked fine
[iptables]
-A FORWARD --in-interface swp1 -j SPAN --dport swp30
-A FORWARD --out-interface swp1 -j SPAN --dport swp30



Userlevel 4
Sean Cavanaugh wrote:

Can you post your config?

Yeah the .123 will filter just for VLAN 123, does the 2nd config provided not provide the desired behavior or was that the issue?

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