Hoi folks,
I've noticed a while ago [1] that policer, when applied to an interface
(input/output), only works for L3, and it only works on PHY, not
sub-interfaces.
I've written https://gerrit.fd.io/r/c/vpp/+/44654 which allows policer
to be attached to L3 sub-interfaces, by applying the policer-input in
front of ip4-unicast/ip6-unicast in the same way that currently
policer-output applies to the ip4-output/ip6-output nodes. For L2, I've
added a feature bitmap L2INPUT_FEAT_POLICER and L2OUTPUT_FEAT_POLICER.
In the node, we now check for the interface being in L2 mode (additional
cost is ~3 cycles). I've also added a test which checks for input/output
for sub-interfaces in both L2/L3 modes.
Please take a look.
[1] https://ipng.ch/s/articles/2023/10/21/vpp-ixp-gateway-part-1/
--
Pim van Pelt <[email protected]>
PBVP1-RIPE https://ipng.ch/
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