I have this weird scenario:
I have 2 cisco switches connected using a cross cable
C3560 FA0/22 <-> C2950 FA0/24
Both ports have configured to be in full duplex, 100 mbps mode. However, recently, I see messages that complain that duplex mismatch. The problem was resolved by resetting the duplex to auto on both sides.
Jun 24 09:11:08: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/24 (not full du
plex), with JDAP_DEV_FS1 FastEthernet0/22 (full duplex).
Details of switch configurations:
Current configuration : 133 bytes
description Computer Room-Rack2 JDAP_DEV_FS1 X.X.X.X f0/22
switchport mode trunk
Current configuration : 118 bytes
description To Computer Room-Rack2 JDAP_DEV_FS1_ES4 x.x.x.x fa0/24
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA4a, RELEASE SOFTWARE (fc1)
Cisco IOS Software, C3560 Software (C3560-IPBASE-M), Version 12.2(25)SEB2, RELEASE SOFTWARE (fc1)
Anyone has any idea what can I do further to isolate the cause?