Friday, January 31, 2020

Really weird multicast bug - Cisco 9500-40X switches

We've run into a really weird bug on one pair of 9500-40X switches that we're running at my work (it's a SVL pair running 16.12.1) - on ports Twe1/0/23 and Twe2/0/23, multicast streams lose packets corrupting an MPEG TS stream.

This happens on any trunk or access connection made to either (or both) of these ports - but only on VLAN 2202.

We've contacted TAC and they've never seen something like this, just wondering if anyone else had seen something like this?



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