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04.01.2007 at 12:38PM PDT, ID: 22485680
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Trunking VLANs over a Layer 3 network

Asked by ian_chard in Network Routers, Miscellaneous Networking, Network Switches & Hubs

Tags: 3, layer, over, trunking, vlan

Trunking VLANs over Layer 3 OSPF links.

What is the best way to trunk a Layer 2 VLAN over a routed layer 3 network? I have a problem whereby the network is split up into 3 seperate sites, each site has a number of VLANS which are routed using OSPF and Cisco layer 3 switches.

There are 2 VLANS which need to span ALL sites and can not be split into different IP segments.

Is it possible to just Trunk the VLANS over the current Layer 3 links? We are using a mixture of Cisco 6500, 3550 and 3750 switches to do the switching and routing.

There is only 1 physical connection between the sites.Start Free Trial
[+][-]04.01.2007 at 04:48PM PDT, ID: 18833726

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[+][-]04.02.2007 at 12:04AM PDT, ID: 18834704

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[+][-]04.02.2007 at 04:38AM PDT, ID: 18835411

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[+][-]04.02.2007 at 05:28AM PDT, ID: 18835695

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[+][-]04.02.2007 at 05:38AM PDT, ID: 18835755

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[+][-]04.02.2007 at 05:45AM PDT, ID: 18835816

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[+][-]04.02.2007 at 06:07AM PDT, ID: 18835973

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[+][-]04.02.2007 at 06:28AM PDT, ID: 18836097

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[+][-]04.02.2007 at 06:34AM PDT, ID: 18836129

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[+][-]04.02.2007 at 06:50AM PDT, ID: 18836225

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[+][-]04.02.2007 at 06:57AM PDT, ID: 18836274

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[+][-]04.02.2007 at 07:37AM PDT, ID: 18836594

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[+][-]04.02.2007 at 07:51AM PDT, ID: 18836761

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About this solution

Zones: Network Routers, Miscellaneous Networking, Network Switches & Hubs
Tags: 3, layer, over, trunking, vlan
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Solution Provided By: donjohnston
Participating Experts: 1
Solution Grade: A
 
 
[+][-]04.02.2007 at 08:13AM PDT, ID: 18836993

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[+][-]04.03.2007 at 12:59AM PDT, ID: 18841811

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[+][-]04.03.2007 at 05:47AM PDT, ID: 18842842

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