[194395] in North American Network Operators' Group
Re: Anyone using Arista 7280R as edge router?
daemon@ATHENA.MIT.EDU (Ryan Woolley)
Mon Apr 17 19:20:18 2017
X-Original-To: nanog@nanog.org
In-Reply-To: <8634ECB9-4975-4969-9842-E95B20FADF97@dino.hostasaurus.com>
From: Ryan Woolley <rwoolleynanog@gmail.com>
Date: Mon, 17 Apr 2017 19:20:12 -0400
To: David Hubbard <dhubbard@dino.hostasaurus.com>,
"nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
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:
https://mailman.nanog.org/pipermail/nanog/2016-April/085472.html
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.
Regards,
Ryan
On Fri, Apr 14, 2017 at 9:51 AM, David Hubbard <
dhubbard@dino.hostasaurus.com> wrote:
> Hey all, have some Brocade MLXe=E2=80=99s that can no longer handle a ful=
l v4 and
> v6 route table while also having VRF support (dumb CAM profile limitation=
s
> in the software). Mine don=E2=80=99t do anything fancy; just BGP to a fe=
w upstream
> peers and OSPF/OSPFv3 to the inside, management VRF, some ACL=E2=80=99s. =
I=E2=80=99m
> looking at the ASR9001 with add-on ports since I need (10) 10gig. Howeve=
r,
> I=E2=80=99ve also been running some Arista 7280SE=E2=80=99s 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 i=
f
> I ever want to upgrade some of our peering to 40 or 100gig.
>
> Arista=E2=80=99s specs say the 7500R / 7280R can handle 1M ipv4+ipv6 rout=
es in
> hardware (FIB):
>
> https://www.arista.com/assets/data/pdf/Whitepapers/FlexRoute-WP.pdf
>
> In theory, it would last at least a few years if the v4 table doesn=E2=80=
=99t 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=E2=80=99s 4M =E2=80=98credits=E2=80=99 for the combo of v4 +(2)v=
6 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=E2=80=99d probably have spent half =
as much.
>
> Thanks,
>
> David
>
