05-08-2007 04:34 AM - edited 03-05-2019 03:56 PM
Hi,
I'm configuring multiple vrf in my core.
I would like to know if I'm better off configuring switchport between my router with each vrf assigne to a vlan...(a bunch of /30 network)
OR
Create routed sub-interface with dot1q encapsulation.(/31 P.TO P. network)
The last one has the advantage of not having any STP on the link...
05-08-2007 11:58 PM
Hi,
I'm not sure that I get your point.
You cannot assign vrf on a switchport.
It has to be a layer 3 port!
In the core one the link between your PE and P routers you just enable tag-switching as you probarly already have done :)
HTH
Regards,
Bjornarsb
05-09-2007 12:17 AM
Hi,
If i understand you correct, you are using VRF-Lite, the second option is the finest in the point that you are not going to have any switching issues.
HTH, please rate if it does help,
Mohammed Mahmoud.
05-09-2007 09:10 AM
Thank's,
My Cisco SE think I would be better with VLAN apply to switchport. I must admit he make sense. Not that sub-interface would not be faster, they would also be more sensible to link flapping.
Anyway, this is a temporary solution. I getting way to much VRF demand that I'm bottlenecking. I might have to go MPLS in the short run.
05-09-2007 10:15 AM
Hi Dominic,
I think his point of view makes sense, i think that going to MPLS might be a scalable solution for you, please keep us updated with your case, its an exciting one.
BR,
Mohammed Mahmoud.
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