[P4-dev] Questions for 'egress port TX Link utilization' (INT metadata) in BMv2

Dongeun Suh dongeunsuh at gmail.com
Tue Apr 4 08:20:54 EDT 2017


Hello everyone,

I'm trying to write an INT application that monitors 'egress port tx
utilization' (defined as baseline metadata in INT spec) based on switch.p4
+ bmv2 (simple_switch.cpp).

However, I found that bmv2 does not support 'egress port tx utilization' as
metadata.

Is there any way to obtain this information from the bmv2 without modifying
'simple_switch.cpp'?
If it is required to modify 'simple_siwtch.cpp', any advises to do this
would be very helpful.

Thanks in advance.
Dongeun Suh.
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