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Cisco Bug: CSCvt85720 - Cat9500 SVL remote portchannel port will link up before Bulk Sync finished

Last Modified

Sep 10, 2020

Products (1)

  • Cisco Catalyst 9500 Series Switches

Known Affected Releases


Description (partial)

in Cat9500 stackwise-virtual setup, using portchannel. after reload the peer switch the opposite side port of the reloaded peer switch will come up in portchannel before the peer switch sync with the active switch. at this moment the peer switch's port is still down. this will cause traffic lost until sync finished

using stackwise-virtual
using portchannel with mode on
reload peer switch
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