Recommended L2 switches for a new IXP

Marian Ďurkovič md at
Tue Jan 20 08:04:29 UTC 2015

On Mon, Jan 19, 2015 at 09:37:35PM -0500, Phil Bedard wrote:
> I think in fairly short order both TRILL and 802.1AQ will be depercated in 
> place of VXLAN and using BGP EVPN as the control plane ala Juniper 
> QFX5100/Nexus 9300. 

We also evaluated VXLAN for IXP deployment, since Trident-2 introduced HW
support for it. But VXLAN does *not* create a network for you, it relies on
some existing underlying IP network, on top of which VXLAN creates stateless

By using TRILL, we could connect 4 switches into a ring (or any other
reasonable topology) and have a fully functional network with shortest-path
"routing" of L2 packets.

With VXLAN, we'd need at least two additional IP routers with bunch of
40GE interfaces to perform the functions TRILL supports out of the box.




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