SAN switch latency issue

 

Major issue on this error, disable port immediately if getting below error.

2021/06/08-13:56:17, [AN-1003], 1281572, SLOT 6 | FID 128, WARNING, switchname1, Latency bottleneck at slot 9, port 11. 10.33 percent of last 300 seconds were affected. Avg. time b/w transmits 1.0000 us.

2021/07/20-21:06:38, [AN-1010], 11564, SLOT 5 | FID 128, WARNING, backboneswitch, Severe latency bottleneck detected at slot 1 port 23.

investigate:

2021/06/08-14:40:22, [AN-1010], 1124481, SLOT 6 | FID 128, WARNING, switchname1, Severe latency bottleneck detected at slot 10 port 0.

investigate:

2021/06/09-11:54:34, [AN-1004], 1124531, SLOT 6 | FID 128, WARNING, switchname1, Slot 9, port 22 is a congestion bottleneck. 54.33 percent of last 300 seconds were affected by this condition.

check above logs by below command :

errdump |grep -i latency

errdump |grep -i bottleneck

errdump |grep -i congestion

check error on ports:

porterrshow (check crc, disc c3 errors)

check port flapping :

fabriclog -s