Hii Guys.
Faced a strange problem today with Ether-Channel conectivity. My two Cisco 4507 connected with two STM links(following different path) on two Gig interface bundled with Ether-channel.
Today, Suddenly switch went unreachable and reachable after shuting one Gig STM port.trying to understand why this so, If there is ethernet created(all configs fine for etherchannel)then switch should not be un-reachable unless both STM connectivity go down or If either STM go down traffic should be on another STM . Have taken latest logs from ether-channel.
Cisco_4507#sh etherchannel detail
Channel-group listing:
----------------------
Group: 1
----------
Group state = L2
Ports: 2 Maxports = 8
Port-channels: 1 Max Port-channels = 1
Protocol: -
Ports in the group:
-------------------
Port: Gi3/2
------------
Port state = Up Mstr In-Bndl
Channel group = 1 Mode = On/FEC Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = -
Age of the port in the current state: 00d:00h:40m:52s
Port: Gi3/3
------------
Port state = Up Mstr In-Bndl
Channel group = 1 Mode = On/FEC Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 1 Load = 0x00 Protocol = -
Age of the port in the current state: 00d:00h:41m:05s
Port-channels in the group:
---------------------------
Port-channel: Po1
------------
Age of the Port-channel = 49d:17h:02m:47s
Logical slot/port = 11/1 Number of ports = 2
GC = 0x00000000
Port state = Port-channel Ag-Inuse
Protocol = -
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
1 00 Gi3/3 On/FEC 0
0 00 Gi3/2 On/FEC 0
Time since last port bundled: 00d:00h:40m:53s Gi3/2
Time since last port Un-bundled: 00d:00h:41m:00s Gi3/2
Cisco_4507#
Requesting you to please help me to understand the root cause of problem.
Regards
