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Fiber connection between Cisco 3508 and Cisco 3750

I have a trunk configured between a cisco 3508 and a cisco 3750. I checked the fiber and it is OK. The configurations are below. I have taffic in one direction only. Am I missing a comand or is there a problem to have a trunk between the two devices?

Cisco 3750

!

interface GigabitEthernet1/0/26

no ip address

!

interface GigabitEthernet1/0/27

switchport trunk encapsulation dot1q

switchport mode trunk

no ip address

udld port aggressive

!

interface GigabitEthernet1/0/28

no ip address

!

Cisco 3508

!

interface GigabitEthernet0/5

switchport trunk encapsulation dot1q

switchport mode trunk

!

interface GigabitEthernet0/6

description Connection to SW3750 for SAN -Blg 101

switchport trunk encapsulation dot1q

switchport mode trunk

udld enable

!

interface GigabitEthernet0/7

switchport trunk encapsulation dot1q

switchport mode trunk

!

1 REPLY

Re: Fiber connection between Cisco 3508 and Cisco 3750

Lets start with the obvious are you sure the GBIC's are working correctly, if you are then remove UDLD, it could be a bug but i did a quick scan and came up empty BUG'd, also not sure what IOS version you are running.

Dale

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