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Cisco Bug: CSCum40660 - 3850 dot1x multi-host - client roaming between ports does not work

Last Modified

Dec 14, 2018

Products (1)

  • Cisco Catalyst 3850 Series Switches

Known Affected Releases

15.0(1)EZ

Description (partial)

Symptom:
-- wireless clients roaming between APs attached the same 3850 fails (wired clients which are for example behind a hub will be also affected)
-- we need to wait 300s or clear mac address table for the client's MAC address to solve the problem

Conditions:
-- two APs on the same switch
-- roaming happening between both APs
-- dot1x in multi-host mode enabled on the AP facing ports

-- the problem can be observed also in other deployments, for example clients behind a hub
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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