03-04-2019 09:05 AM
: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet2/25 (not half duplex), with MAC 1 (half duplex) : %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet2/25 (not half duplex), with MAC t 1 (half duplex). |
Getting above log message, Cisco IP phone connected to switch WS-C4507R+E.
Please advice on resolve the issue.
Thanks,
03-04-2019 09:23 AM
03-04-2019 09:29 AM
03-05-2019 01:16 AM
Many phones has the same issue which is connected to same model
03-05-2019 07:00 AM
03-08-2019 05:38 AM
are you sure that someone does not have a hub plugged into the wall, and the phone plugged into the hub? That's my suspicion as I've not seen this symptom if a phone is plugged directly into the switchport. To me, this reeks of a hub in between.
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