What's needed to span VLANs across point to point?

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Oct 30th, 2008
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I need to find out what is required to be able to send vlan traffic across a point to point link.


Site A (Vlan 100) -> P2P Link (25Miles) -> (Vlan 100) Site B


Thanks!


John

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trippi Thu, 10/30/2008 - 14:57
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A transparent LAN from your ISP or a 7200 series router on each end with Layer 2 transport configured

Joseph W. Doherty Thu, 10/30/2008 - 16:10
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Assuming the p2p requires serial interfaces, using routers on both ends of the p2p link but configured for bridging, might work for you.

John Blakley Fri, 10/31/2008 - 07:35
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How could I bridge the connection?

Joseph W. Doherty Sun, 11/02/2008 - 03:37
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Don't see bridging offen across routers, because if you have routers, often better to route. It has been quite a while since I've even seen an actual router bridge configuration, so unable to provide a current example or better advice, but I did try to find you some additional information, see below.


http://www.cisco.com/en/US/tech/tk389/tk815/technologies_tech_note09186a0080094663.shtml


http://www.cisco.com/en/US/docs/ios/12_0/ibm/configuration/guide/bctb.html


http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00801c137e.shtml


http://www.cisco.com/en/US/tech/tk331/tk660/technologies_tech_note09186a0080094471.shtml

Jon Marshall Thu, 10/30/2008 - 16:21
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Another alternative is to look at L2TPv3 -


http://www.cisco.com/en/US/netsol/ns341/ns396/ns172/ns155/networking_solutions_white_paper09186a008017fa6e.shtml


Not all routers/IOS versions/feature sets support it so it would be worth checking on Feature Navigator


http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp


Jon

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