I am working with TAC on this issue, but I thought I might get some input from the community at large.
I have two CAT6509's running Native IOS. I have setup HSRP on these switches in the standard way. I am having Unicast traffic flooding on random ports across my network. After about 1 week of sending command output files and sniffer traces, TAC said I had Asymmetric Routing issues relating to HSRP and said the recommended solution is to adjust the MAC aging time on the switch to 14,400 seconds (4hrs).
I have a pretty vanilla config when it comes to networks, is this something that is common? Has anyone else had this issue?
Here is the artical detailing more about the issue.
We are pleased to announce availability of Beta software for 16.6.3.
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