Hi,
I was previously using two 4507 switches with the same IOS and same supervisor modules [dual WS-X4515 SUPERVISOR ENGINE IV]. An etherchannel was setup and running without problems. Switch #1 got damaged and had to be replaced with a new 4507 with new supervisor modules [dual WS-X45-SUP7L-E]. The IOS in the new switch1 is newer than the IOS of the older switch2.
After the entire configuration was in place I tried to establish the etherchannel but it doesn't want to go up in the new switch1, it does shows up in the old switch2. I want to use the default vlan1 and the interfeaces are in access mode, not trunk. Both switches can ping each other, but the status of the etherchannel on the new switch1 is listed as down. I tried all the modes for the etherchannel; active, auto, desirable, passive but none of them work, each and every time I removed the port-channel interface and start from scratch. I tried to force speed and duplex but it get worse, also with and without spanning-tree portfast. Anyways the setup with the old switch was running with the “ON” mode and the interfaces on their default speed and duplex setting and that's the way I prefer to run the configuration. Interfaces on both switches have the same capacities. I issued the [DEBUG ETHERCHANELL ALL] command on the new switch1 but no information gets displayed on the console.
Can you please provide some help?
[SWITCH1 IOS]
Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSAL-M), Version 03.04.02.SG RELEASE SOFTWARE (fc1)
ROM: 15.0(1r)SG10
MPC8572 CPU at 1.5GHz, Supervisor 7L-E
Module Name Role Current Level Reboot Level
--------------------------------------------------------------------
WS-X45-SUP7L-E Active ipbase ipbase
Standby ipbase ipbase
[SWITCH1 ETHERNET PORT MODULES]
"Linecard(slot 6)", DESCR: "10/100/1000BaseT (RJ45)+V E Series with 48 10/100/1000 baseT Premium PoE ports (Cisco/IEEE)"
PID: WS-X4748-RJ45V+E , VID: V03 , SN: CAT1749L7UX
[SWITCH 1 ETHERCHANNEL CONFIGURATION]
interface Port-channel1
switchport
switchport mode access
!
interface GigabitEthernet6/47
description Etherchannel to SWITCH2
switchport mode access
spanning-tree portfast
channel-group 1 mode on
!
interface GigabitEthernet6/48
description Etherchannel to SWITCH2
switchport mode access
spanning-tree portfast
channel-group 1 mode on
[SWITCH1 ETHERCHANNEL STATUS & SUMMARY]
GigabitEthernet6/47 unassigned YES unset down down
GigabitEthernet6/48 unassigned YES unset down down
Port-channel1 unassigned YES unset down down
!
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SD) - Gi6/47(D) Gi6/48(D)
[SWITCH2]
Cisco IOS Software, Catalyst 4000 L3 Switch Software (cat4000-I9S-M), Version 12.2(25)EWA11, RELEASE SOFTWARE(fc1)
ROM: 12.2(20r)EW1
Dagobah Revision 226, Swamp Revision 32
MPC8245 CPU at 333Mhz, Supervisor IV
cat4000-i9s-mz.122-25.EWA11.bin
[SWITCH2 ETHERNET PORT MODULE]
"Linecard(slot 4)", DESCR: "10/100/1000BaseT (RJ45) with 48 10/100/1000 baseT ports"
PID: WS-X4548-GB-RJ45 , VID: V05, SN: JAE11430WKZ
[SWITCH2 ETHERCHANNEL CONFIGURATION]
interface Port-channel1
switchport
switchport mode access
!
interface GigabitEthernet4/47
description Etherchannel to SWITCH1
switchport mode access
spanning-tree portfast
channel-group 1 mode on
!
interface GigabitEthernet4/48
description Etherchannel to SWITCH1
switchport mode access
spanning-tree portfast
channel-group 1 mode on
[SWITCH2 ETHERCHANNEL STATUS & SUMMARY]
GigabitEthernet4/47 unassigned YES unset up up
GigabitEthernet4/48 unassigned YES unset up up
Port-channel1 unassigned YES unset up up
!
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SU) - Gi4/47(P) Gi4/48(P)
More detailed information:
SWITCH1#sh etherchannel 1 detail
Group state = L2
Ports: 2 Maxports = 8
Port-channels: 1 Max Port-channels = 1
Protocol: -
Minimum Links: 0
Ports in the group:
-------------------
Port: Gi6/47
------------
Port state = Down Not-in-Bndl
Channel group = 1 Mode = On Gcchange = -
Port-channel = null GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = -
Age of the port in the current state: 0d:03h:35m:37s
Port: Gi6/48
------------
Port state = Down Not-in-Bndl
Channel group = 1 Mode = On Gcchange = -
Port-channel = null GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = -
Age of the port in the current state: 0d:03h:35m:33s
Port-channels in the group:
---------------------------
Port-channel: Po1
------------
Age of the Port-channel = 0d:03h:36m:21s
Logical slot/port = 21/1 Number of ports = 0
GC = 0x00000000
Port state = Port-channel Ag-Not-Inuse
Protocol = -
Port security = Disabled
SWITCH2#sh etherchannel 1 detail
Group state = L2
Ports: 2 Maxports = 8
Port-channels: 1 Max Port-channels = 1
Protocol: -
Ports in the group:
-------------------
Port: Gi4/47
------------
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:03h:40m:02s
Port: Gi4/48
------------
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:03h:39m:56s
Port-channels in the group:
---------------------------
Port-channel: Po1
------------
Age of the Port-channel = 04d:06h:28m:30s
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
------+------+------+------------------+-----------
0 00 Gi4/47 On/FEC 0
1 00 Gi4/48 On/FEC 0
Time since last port bundled: 00d:03h:39m:57s Gi4/48
