Trunk between 65XX & 3750 does not work

[aparikh]

Hi,

I have 7603 router with 2-ws6516-ge-tx cards (disk0:/c6k222-pk9sv-mz.122-18.SXD2.bin). I want to use card 1 as a swithcport. I enable trunk on port1 & it does not work with c3750. Trunking on cisco 3750 works o.k. with 3500XL switch.

Following is the config from 7603 & 3750

7603:

interface GigabitEthernet2/1

no ip address

switchport

switchport trunk encapsulation dot1q

switchport mode trunk

end

3750:

interface GigabitEthernet1/0/3

switchport trunk encapsulation dot1q

switchport mode trunk

no ip address

no mdix auto

end

Also, can you enable clustering on WS-65xx card ?

[amit-singh]

Do you see link lights on both the sides. Did you try changing the cable. Do you see some errors on the interface on either of the side.

Config seems to be OK. What does" show int gig x/x " shows to you on both the sides.

No, 65xx doesnot support clustering.

regards,

-amit singh

[Georg Pauwen]

Hello,

the configs look ok; do you have physical connectivity when connecting the trunk ports on the 7603 and the 3750, that is, are the ports in up/up state ?

Regards,

GP