EtherChannel Cisco3725 -> Cisco3550

[richie_dumlao2]

Hello All,

Need assistance, am trying to configure etherchannel between a Cisco3725 and Cisco Catalyst 3550. Can't get it working with my existing config below. Please help.

Physical Connection

3725 F0/0 ---> 3550 F0/1

3725 F0/1 ---> 3550 F0/2

===== ROUTER ======

!

int po1

hold-queue 300 in

!

int po1.1

encap dot1q 1 native

ip address 10.0.0.1 255.255.255.0

!

int f0/0

channel-group 1

!

int f0/1

channel-group 1

===== SWITCH =====

!

int po1

switchport trunk encap dot1q

switchport mode trunk

hold-queue 300 in

!

int f0/0

channel-group 1 mode on

!

int f0/1

channel-group 1 mode on

!

int vlan 1

ip address 10.0.0.2 255.255.255.0

!

[bella]

Check the requirements on http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_example09186a00800ef797.shtml#req

Seems like 37xx don't support trunkig and FEC at the same time on the "routed" interfaces. But you don't use any additional vlan besides vlan 1, so why bother?

[richie_dumlao2]

Thanks for the reply! :) I also tried this config (see below), without 802.1q trunking, still no luck... i only configured a single vlan for the purpose of testing the FEC.

===== ROUTER ======

!

int po1

ip address 10.0.0.1 255.255.255.0

hold-queue 300 in

!

int f0/0

channel-group 1

!

int f0/1

channel-group 1

===== SWITCH =====

!

int po1

hold-queue 300 in

!

int f0/1

channel-group 1 mode on

!

int f0/2

channel-group 1 mode on

!

int vlan 1

ip address 10.0.0.2 255.255.255.0

!

[mahmoodmkl]

Hi

i think the ip address of the po1 on the switch should be 10.0.0.2 255.255.255.0 should be in the same subnet.

Thanks

Mahmood

[richie_dumlao2]

Thanks for your reply.

I did initially tried this before posting, to be able to assign an ip to po1 interface, i would have to use the "no switchport" command... but whenever I the config below, it gives me error:

"Command Rejected: Not a convertible port"

=== SWITCH ===

int po1

no switchport

ip address 10.0.0.2 255.255.255.0