Anyone using Arista 7280R as edge router?

Ryan Woolley rwoolleynanog at
Mon Apr 17 23:20:12 UTC 2017

Yes, we (Netflix) have the Arista 7500R and 7280R widely deployed as edge
routers.  We're a few months away from shutting down the few remaining MXs
and ASRs in our CDN.

There was a thread from about a year ago that you might check out:

Since then, route table growth hasn't changed appreciably.  Also, Arista
has added some features (notably route-map subroutine support and
default-deny) that improve BGP policy functionality.

If your use case allows you to use a default for those routes not heard via
your direct peers, there are options to increase the functional scale (and
thus to stretch the lifespan beyond ~4 years).  In addition to filtering,
there's support for selective route download, which will allow you to keep
a full RIB with a more limited FIB.


On Fri, Apr 14, 2017 at 9:51 AM, David Hubbard <
dhubbard at> wrote:

> Hey all, have some Brocade MLXe’s that can no longer handle a full v4 and
> v6 route table while also having VRF support (dumb CAM profile limitations
> in the software).  Mine don’t do anything fancy; just BGP to a few upstream
> peers and OSPF/OSPFv3 to the inside, management VRF, some ACL’s.  I’m
> looking at the ASR9001 with add-on ports since I need (10) 10gig.  However,
> I’ve also been running some Arista 7280SE’s for the past 18 months with no
> issues, and they want me to consider their 7280R since it would give me
> more ports, in addition to some higher speed ports, which would be nice if
> I ever want to upgrade some of our peering to 40 or 100gig.
> Arista’s specs say the 7500R / 7280R can handle 1M ipv4+ipv6 routes in
> hardware (FIB):
> In theory, it would last at least a few years if the v4 table doesn’t get
> too crazy between now and then.
> Curious if anyone has deployed a 7500R or 7280R in this role and what the
> feedback has been?
> The 9001’s 4M ‘credits’ for the combo of v4 +(2)v6 routes obviously goes
> much further, but I think either one would make it to their expected end of
> life, or if not on the Arista side, I’d probably have spent half as much.
> Thanks,
> David

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