I am trying to configure sflow on Nexus 9396PX switch and having some difficulty to understand tcam region.
hardware access-list tcam region span-sflow 256 ! feature sflow sflow counter-poll-interval 30 sflow collector-ip 10.30.0.91 vrf management sflow collector-port 9995 sflow agent-ip 172.30.0.26
when i enable on my
port-channel1 (which is 4x40G port bundle on GEM module)
sflow data-source interface port-channel1
When i run "show run sflow" to verify config i can't see "sflow data-source interface port-channel1" line there.
N9K(config)# show run sflow !Command: show running-config sflow !Running configuration last done at: Tue Apr 13 14:24:00 2021 !Time: Tue Apr 13 14:24:58 2021 version 9.3(6) Bios:version 07.68 feature sflow sflow counter-poll-interval 30 sflow collector-ip 10.30.0.91 vrf management sflow collector-port 9995 sflow agent-ip 172.30.0.26
For experiment i tried to add
Ethernet 1/1 (10G port) and that works i can see that in "show run" Look like 40G Gem module doesn't supported. so i did google and found this on Cisco website
Make sure that the sFlow and SPAN ACL TCAM region sizes are configured for any uplink ports that are to be configured as an sFlow data source on the following devices: Cisco Nexus 9332PQ, 9372PX, 9372TX, and 93120TX switches and Cisco Nexus 9396PX, 9396TX, and 93128TX switches with the N9K-M6PQ or N9K-M12PQ generic expansion module (GEM).
Question, is what is SPAN ACL region all i can see following on my switch, does SPAN ACL is ing- l2-span-filter or ing-l3-span-filter ?
hardware access-list tcam region span 0 hardware access-list tcam region ing-l2-span-filter 0 hardware access-list tcam region ing-l3-span-filter 0 hardware access-list tcam region ipv6-span-udf 0 hardware access-list tcam region ipv6-span-l2-udf 0 hardware access-list tcam region span-sflow 256