Ports Not Coming Up After Adding to Existing Etherchannel 3560G

[_Chris_]

Hello,

Can someone please help me understand why 2 ports I am trying to add to an existing channel group are not coming up? Shows as status down and line protocol down. The current Etherchannel group has two fiber cables (1gig each) and I am trying to add two copper (1gig each) to the group. Speed, Duplex, and Bandwidth are the same all around. Here are my configs for the 2 switches: 

Switch 1:

interface Port-channel1
description TRUNK-TO-ADMIN-1
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk

interface GigabitEthernet0/49   <------- FIBER
description TRUNK-TO-ADMIN-1
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
channel-group 1 mode on
!
interface GigabitEthernet0/50     <--------FIBER
description TRUNK-TO-ADMIN-1
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
channel-group 1 mode on

These are the ports I have tried to add to Switch 1:

interface GigabitEthernet0/35 <-------COPPER
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
bandwidth 1000000
shutdown
speed 1000
duplex full
channel-group 1 mode on
!
interface GigabitEthernet0/36 <-------COPPER
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
bandwidth 1000000
shutdown
speed 1000
duplex full
channel-group 1 mode on

Switch 2:

interface Port-channel1
description PORT-CHANNEL-TO-OPS-4
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk

interface GigabitEthernet0/49
description PORT-CHANNEL-TO-OPS-4
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
channel-group 1 mode on

interface GigabitEthernet0/50
description PORT-CHANNEL-TO-OPS-4
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
channel-group 1 mode on

These are the ports I have tried to add to Switch 2:

interface GigabitEthernet0/27  <-----COPPER

switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
bandwidth 1000000
speed 1000
duplex full
channel-group 1 mode on

interface GigabitEthernet0/29 <-----COPPER

switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
bandwidth 1000000
speed 1000
duplex full
channel-group 1 mode on

[Sheraz.Salim]

nterface GigabitEthernet0/35 <-------COPPER
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
bandwidth 1000000
shutdown                   give command no shut
speed 1000
duplex full
channel-group 1 mode on
!
interface GigabitEthernet0/36 <-------COPPER
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
bandwidth 1000000
shutdown       give command no shut
speed 1000
duplex full
channel-group 1 mode on

[_Chris_]

Thank you for the reply. I have them in the shutdown state on purpose for now. But even when I do a NO SHUT they still stay down.

[Sheraz.Salim]

are you trying to make a etherchannel bundle with fiber and copper?

[_Chris_]

Yes. Fiber is the existing bundle and trying to add 2 more copper lines to the bundle.

[_Chris_]

This is with the no shut command:

GigabitEthernet0/27 unassigned YES unset down down
GigabitEthernet0/29 unassigned YES unset down down

GigabitEthernet0/35 unassigned YES unset down down
GigabitEthernet0/36 unassigned YES unset down down

They still remain down.

[Sheraz.Salim]

might you can not fix match the fiber and copper. that could be the only reason its not coming up. your configuration looks good.

[_Chris_]

I read it was possible here: 

https://community.cisco.com/t5/switching/mixing-copper-fiber-ports-in-an-etherchannel/td-p/1498121

[balaji.bandi]

Remove the newely added Copper interface cables.

Default the interface config

add below config -

switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
channel-group 1 mode on

Connect the cables back and no shutdown the physical interface and let us know.

can you post also

show EtherChannel 1 summary

[_Chris_]

If I set to default and only add those configs wont there be a mismatch in speed and duplex? here is the ether summary after those configs:

Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator

M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port

Number of channel-groups in use: 3
Number of aggregators: 3

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SU) - Gi0/27(D) Gi0/29(D) Gi0/49(P)
Gi0/50(P)

[balaji.bandi · Accepted solution]

Config to match all the ports same, is the output after default the interface?

what is the Logs show ?

[_Chris_]

Yes the output i just posted is after default interface.

[balaji.bandi]

This required more thinking here.

1. is this ports working individually before adding to port-channel ? is this been tested.

2. can you post new interface status

show interface  GigabitEthernet0/27 
show interface  GigabitEthernet0/29

show interface  GigabitEthernet0/35 
show interface  GigabitEthernet0/36 

[_Chris_]

I found that I was not matching completely. Once I matched the new interfaces with existing interface configs, it worked. Thank you.