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Quick Best Practice question

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...

4 REPLIES
Bronze

Re: Quick Best Practice question

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

Re: Quick Best Practice question

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.

Re: Quick Best Practice question

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.

Re: Quick Best Practice question

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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