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New Member

VLAN traffic over routed links

How can i get vlan traffic over multiple routed switches ?

I read something about GRE tunnel, but can not find documentation over a GRE tunnel on L3 (3550) switches.

The problem is that we want to place a server on a sublocation in the same vlan than a server on the main location. Between these locations are L3 switches in routing mode, so it´s not possible to make an L2 trunk.

Kind regards,

Edwin Gerritsen

Dhs Informatisering

New Member

Re: VLAN traffic over routed links

Perhaps IRB (Integrated routing and bridging) is not the best solution, but it works depending upon your needs and is really functional...rgds

New Member

Re: VLAN traffic over routed links

Any switch running in L3 mode, can still make L2 trunks and will solve the purpose. Let me know what L3 switches you have and I shall update you about their commands and fucntions.

New Member

Re: VLAN traffic over routed links


Thanks for helping me out.

We use the following switches 6509 (IOS), 3550 and 2950.


Between the 6509 and 3550 is a L3 link with ip address and no switchport. VLAN´s are configured on the 6509. Because there is a L3 link between the 6509 and 3550, vlan information is not available on the 2950.

The problem is that we want the vlan information available on the 2950.

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