Hello, thanks for the answer,

UnicalUnical · ‎12-14-2014

Hello everyone,

I have a problem with two interfaces on this switch - Gi1/0/14 and Gi2/0/14. When I try to add these two interfaces into etherchanel, I receive an error

"GigabitEthernet1/0/14 is not added to port channel 14" and the same one with Gi2/0/14.

#show ver
BOOTLDR: CBS31X0 Boot Loader (CBS31X0-HBOOT-M) Version 12.2(0.0.951)SE3, CISCO DEVELOPMENT TEST VERSION

System image file is "flash:/cbs31x0-universal-mz.122-52.SE/cbs31x0-universal-mz.122-52.SE.bin"

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 17 WS-CBS3110X-S-I 12.2(52)SE CBS31X0-UNIVERSAL-M
2 17 WS-CBS3110X-S-I 12.2(52)SE CBS31X0-UNIVERSAL-M

#show run int po14
Building configuration...

Current configuration : 124 bytes
!
interface Port-channel14
switchport trunk native vlan 4
switchport trunk allowed vlan 4,100
switchport mode trunk
end

sw-bl-mdc#show run int gi 1/0/14
Building configuration...

Current configuration : 131 bytes
!
interface GigabitEthernet1/0/14
switchport trunk native vlan 4
switchport trunk allowed vlan 4,100
switchport mode trunk
end

sw-bl-mdc#show run int gi 2/0/14
Building configuration...

Current configuration : 131 bytes
!
interface GigabitEthernet2/0/14
switchport trunk native vlan 4
switchport trunk allowed vlan 4,100
switchport mode trunk
end

The only problem with this two ports(Gi1/0/14 & Gi2/0/14), the other with the same configuration are combined into other ethchannel's

Is this a known behavior ?

Leo Laohoo · ‎12-14-2014

Try this method:

no int po 14
default interface range Gi 1/0/14, Gi 2/0/14
interface range Gi 1/0/14, Gi 2/0/14
 switchport trunk native vlan 4
 switchport trunk allowed vlan 4,100
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 14 mode <MODE>

UnicalUnical · ‎12-14-2014

Hello, thanks for the answer, but It did not help, the same result:

#channel-group 14 mode active
GigabitEthernet1/0/14 is not added to port channel 14
% Range command terminated because it failed on GigabitEthernet1/0/14

btw,

switchport trunk encapsulation dot1q

not possible to apply to these interfaces:

(config)#int gi 1/0/14
(config-if)#switchport trunk ?
  allowed  Set allowed VLAN characteristics when interface is in trunking mode
  native   Set trunking native characteristics when interface is in trunking mode
  pruning  Set pruning VLAN characteristics when interface is in trunking mode

Leo Laohoo · ‎12-14-2014

Can you post the output to the command "sh post"?

UnicalUnical · ‎12-15-2014

#show post
Stored system POST messages:

Switch 1
---------

POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: MA BIST : Begin
POST: MA BIST : End, Status Passed

POST: TCAM BIST : Begin
POST: TCAM BIST : End, Status Passed

POST: SF ASIC BIST : Begin
POST: SF ASIC BIST : End, Status Passed

POST: Switch Fabric Memory Tests : Begin
POST: Switch Fabric Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed

POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed

POST: EMAC Loopback Tests : Begin
POST: EMAC Loopback Tests : End, Status Passed

Switch 2
---------

POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: MA BIST : Begin
POST: MA BIST : End, Status Passed

POST: TCAM BIST : Begin
POST: TCAM BIST : End, Status Passed

POST: SF ASIC BIST : Begin
POST: SF ASIC BIST : End, Status Passed

POST: Switch Fabric Memory Tests : Begin
POST: Switch Fabric Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed

POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed

POST: EMAC Loopback Tests : Begin
POST: EMAC Loopback Tests : End, Status Passed

UnicalUnical · ‎12-16-2014

Unfortunately I found on BugSearch bug with this problem - CSCso75068.

Symptom:
These are the limitations of the switch internal 1000BASE-X downlink port 0/0/14:
Do not configure port 0/0/14 as part of an EtherChannel.
Do not configure port 0/0/14 as a member of a private VLAN.
These features are disabled on port 0/0/14:
Flex Links
Port security
Trunking
Internet Group Management Protocol (IGMP) snooping
Spanning Tree Protocol (STP)

1) Workaround:
None.

2)Known Fixed Releases:

(0)

No release planned to fix this bug

WS-CBS3110X problem with adding an interface into etherchannel