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trunking between 7613 and GSR (12416)

Unanswered Question
Jul 17th, 2006
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Can these 2 devices support gig etherchannelling? I need to trunk 3 gig ethernet between 7613 and 12416. GSR does support portchannels but to allow trunking dot1q must be configured. If any one is doing this please print a sample config.


Thanks.

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Roberto Salazar Mon, 07/17/2006 - 19:38
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7613 definitely supports port-channeling and dot1q trunking on those channels. Waht is the issue? Are you not able to trunk?


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j.belarj Tue, 07/18/2006 - 04:12
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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.

Roberto Salazar Tue, 07/18/2006 - 16:24
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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.


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jackyoung Tue, 07/18/2006 - 17:05
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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.

j.belarj Thu, 07/27/2006 - 06:37
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Yes Indeed only L3 etherchannels are supported on GSR 12416... and trunking using them is possible.


Thanks.

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