topic Re: Counter for drop packets at the Ingress/interface stage in General Topics

Counter for drop packets at the Ingress/interface stage

Sanssj — Fri, 02 Nov 2018 01:46:00 GMT

Is there any specific counter to tell if traffic is being dropped during high-dataplane utilization ~100%.

The show counter interface <interface> specifies dropped packets & packets dropped due to flow state checks. but will there be any slighest chance that we are dropping traffic because the chip buffers are under severe load.

Re: Counter for drop packets at the Ingress/interface stage

JW6224 — Fri, 02 Nov 2018 13:37:28 GMT

Does this get you close?

admin> set cli pager off
admin> show counter global filter severity drop
admin> show counter global filter severity drop | match "Packets dropped"
flow_rcv_err 769503 0 drop flow parse Packets dropped: flow stage receive error

Re: Counter for drop packets at the Ingress/interface stage

MP18 — Sat, 19 Sep 2020 02:56:18 GMT

Use Below command

show counter global filter delta yes severity drop

Global counters:
Elapsed time since last sampling: 1.415 seconds

name value rate severity category aspect description
--------------------------------------------------------------------------------
flow_policy_deny 12 8 drop flow session Session setup: denied by policy
flow_tcp_non_syn_drop 13 9 drop flow session Packets dropped: non-SYN TCP without session match
flow_fwd_l3_mcast_drop 15 10 drop flow forward Packets dropped: no route for IP multicast
flow_fwd_l3_ttl_zero 14 9 drop flow forward Packets dropped: IP TTL reaches zero
flow_action_close 1 0 drop flow pktproc TCP sessions closed via injecting RST
flow_fpga_egress_exception_err 5 3 drop flow offload Packets dropped: receive egress exception error from offload processor
--------------------------------------------------------------------------------
Total counters shown: 6