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Cisco Bug: CSCuo18934 - Intermittent multicast packet loss on 3.2.7 after ISSU from 3.2.3

Last Modified

Feb 15, 2018

Products (1)

  • Cisco Catalyst 4500 Series Switches

Known Affected Releases


Description (partial)

After upgrading to Cisco IOS 3.2.7SG and given more than 1024 active groups, both supervisor engines experience intermittent multicast packet loss and the number of S, Gs drop continuously.

This happens after performing an ISSU from Cisco IOS Release 3.2.3 to 3.2.7, and more than 1024 groups are active.
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