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Cisco Bug: CSCvs38457 - c9500 stack-wise slot reloaded, newly linked up GLC-GE-100FX cannot passing traffic

Last Modified

May 01, 2020

Products (1)

  • Cisco Catalyst 9500H Series Switches

Known Affected Releases

16.12.2 16.12.2s

Description (partial)

Two C9500 are connected with stack wise virtual.
Everytime reload slot x or redundancy force-switchover, GLC-GE-100FX  on corresponding switch can link up but does not have CDP neighbor information and Mac/ip entry.
On neighbor device, link is up/up and CDP/Mac information remains. Sometimes, neighbor device link got udld err-disabled.

In issue state. no receive packet counter increase.

show controller
Transmit                  TwentyFiveGigE1/0/7           Receive
      6096540 Total bytes                           0 Total bytes        <<<<<<<<
         6182 Unicast frames                        0 Unicast frames

-C9500 stack-wise virtual or standalone
-link with GLC-GE-100FX transceiver
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