I can trunk between 2 cisco 7613's not a problem. My issue is I have a 7613 and a 12416 at same location and I need to trunk them. Not sure if this will work, I can't find any documentation to support creating L2 interfaces on GSR so I can trunk them.

Any one with any White Papper, or experience please reply before I open a TAC case.

Thanks.

As far as I know the GSR will be able to support dot1q trunk. So, you will need to channel the gig interfaces and create a L3 port-channel interface and sub-interface the port-channel with dot1q encapsulation.

Please rate all posts.

According to the Q&A as below. The Fast and Gigabit Etherchannel is not supported in GSR12000. And it do support 802.1q.

http://www.cisco.com/en/US/products/hw/routers/ps167/products_qanda_item09186a0080094a71.shtml#n17

Below is the config, sample for dot1q for VLAN 10 :

interface gigabitethernet 3/1.1

encapsulation dot1q 10

ip address 172.1.1.1 255.255.255.0

http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/products_feature_guide09186a00800e9556.html#31333

Hope this helps.

Yes Indeed only L3 etherchannels are supported on GSR 12416... and trunking using them is possible.

Thanks.