Wired Intelligent Edge (Campus Switching and Routing)

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Switching from MPLS campus network to EVPN

Has anyone done migration from MPLS campus network to a EVPN & VXLAN one? We have smallish MPLS campus network with around 100 devices participating in the MPLS network and busiest boxes have something like 130 VRFs and BGP peerings.

 

We're not really using any traffic engineering stuff or anything, just VRFs and all the VRFs have default route from our DC firewalls. So we could probably just switch to EVPN, if Aruba switches support enough VRFs and BGP peerings.

 

As our current MPLS gear is aging out we'd like to see if this can be done with Aruba or whether we should go with a vendor that has MPLS support.

 

Any thoughts?

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MVP Guru

Re: Switching from MPLS campus network to EVPN

A dedicated session with your Aruba SE would be worth.

There are more and more legacy MPLS networks that are refreshed and migrated to EVPN. A major benefit is to rely on a pure IP backbone.

AOS-CX Switches support up to 256 VRFs, as well as 256 BGP peers but the scale really depends on the number of combination of routes, peers, platforms and other features being used...so the best recommendation is to perform a scale analysis with your Aruba SE.

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Re: Switching from MPLS campus network to EVPN

I will talk to Aruba guys of course. But as there are more people here it would be nice to get some feedback if someone has done the same migration.

 

256 VRFs/peers would be enough for us.

 

We have EVPN/VXLAN capable switches in the DCs and our newest building has CX switches. We could probably do some testing with these, even if it went over an MPLS network. In this case few bytes of extra layering doesn't matter as long as we get the idea how it would work

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MVP Guru

Re: Switching from MPLS campus network to EVPN

You're right , let's see if there are other people in the community who investigated this.

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