12-21-2006 09:42 AM - edited 03-14-2019 07:19 PM
Hello,
Not sure if this is a bug or something else.
I'm receiving the following msg on the syslog, but both phone and switch are correctly set to AUTO negotiate the duplex and speed.
Dec 21 11:37:01.107 EST: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet3/3 (not full duplex), with SEP001360C3E06D Port 1 (full duplex).
After a interface recycle (shut/no shut) it stop.
Any ideas?
Vlad
12-21-2006 12:59 PM
Which Switch platform and IOS running?
Could you please post your switch port config?
Thanks
12-22-2006 02:38 AM
interface FastEthernet3/1
switchport access vlan 10
switchport mode access
switchport voice vlan 20
switchport port-security maximum 3
switchport port-security
switchport port-security aging time 1
switchport port-security aging type inactivity
load-interval 60
qos vlan-based
no snmp trap link-status
tx-queue 3
priority high
end
on the phone:
PC Port Disabled NO
SW Port Configuration AUTO
PC Port Configuration AUTO
12-22-2006 02:40 PM
Have you tried to just set fixed speed and duplex on the switch port? Unfortunately, duplex negotiation is not 100% reliable.
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