Symptom
Broadcom port(s) stops sending frames to North Start ASIC.
Conditions
Check for "+0" packets in the Output of Broadcom Internal Port stats
module-1# show plat intern counters port internal
Initializing Module.
Broadcom Internal Port Stats
------------------------------------------------------------------------------------------------------------------------------------
REMOTE LOCAL HW-Port Input Output
TOR-1 BCM-0/51 1 Packets :- 67,941,310,385 +1,031,148 3/s 71,075,016,671 +0 (no new packets) 0/s
Bytes :- 71,310,274,919,675 +490,205,132 508/s 58,969,964,593,644 +0 0/s
Drops(pkt):- 3,944,254 +0 0/s 1,811,768 +34,902 0/s
Workaround
Reload of leaf resolves issue.
Further Problem Description
In the event this issue is seen, immediately collect the following outputs:
vsh_lc -c "show platform internal bcm event-history trace asic 0" >> /tmp/bcm_eventhistory_asic_0.txt
vsh_lc -c "show platform internal bcm event-history trace asic 1" >> /tmp/bcm_eventhistory_asic_1.txt
vsh_lc -c "show platform internal bcm event-history trace asic 2" >> /tmp/bcm_eventhistory_asic_2.txt
vsh_lc -c "show platform internal bcm event-history trace asic 3" >> /tmp/bcm_eventhistory_asic_3.txt
