Arista Layer3
joel jaeggli
joelja at bogus.com
Thu Nov 30 23:16:41 UTC 2017
On 11/30/17 13:00, Ken Chase wrote:
> >Arista DCS-7280SRA-48C6 is a 1ru box.??
> >
> >Has a nominally million route fib, Jericho+ 8GB of packet buffer.
> >control-plane is 8GB of ram andAMD GX-424CC SOC which is 4 core 2.4ghz.
> >We do direct fib injection with bird rather than the arista bgpd but the
> >control-plane is capable of managing quite a few bgp sessions.
> >
> >the 1/2ru 7280CR2K-30 and 60 are 2m route fib boxes with still heftier
> >control planes but they're a different class of box being all 100G and
> >requiring multi-chip/internal fabrics.
>
> Sounds pretty good - hows your power draw on that thing? Why'd you pick Bird
> in this case?
this a standard sr that's moderately busy but not exactly slammed, I'm
be impressed if you could triple that at full tilt.
#show environment power
Power Input Output Output
Supply Model Capacity Current Current Power Status
------- -------------------- --------- -------- -------- --------
-------------
1 PWR-500AC-R 500W 0.35A 5.27A 62.8W Ok
2 PWR-500AC-R 500W 0.32A 4.81A 56.4W Ok
Total -- 1000W -- -- 119.1W --
bird had memory footprint going with it as well as some local
modification and we hacked addpath into it a few years ago. filtering
poilcy is something we programmatically generate and interact with via
agents so a traditional style monolithic config isn't that useful.
> /kc
>
>
> >> /kc
> >>
> >> On Thu, Nov 30, 2017 at 10:45:09AM -0800, Tyler Conrad said:
> >> >For Enterprise/DC, it works great. For service provider, they're not 100%
> >> >yet. The main issue is going to be around VRFs, as there's no interaction
> >> >between them (at least in the code version I'm on, that may have changed
> >> >recently or be changing soon). They'll work great as a P-Router, but if you
> >> >need a PE with route leaking I'd look at another vendor.
> >> >
> >> >I use a couple pairs of 7280SRs as edge routers/border leaves. Multiple
> >> >full table feeds without any issue.
> >> >
> >> >On Thu, Nov 30, 2017 at 10:36 AM, Romeo Czumbil <Romeo.Czumbil at tierpoint.com
> >> >> wrote:
> >> >
> >> >> So I've been using Arista as layer2 for quite some time, and I'm pretty
> >> >> happy with them.
> >> >> Kicking the idea around to turn on some Layer3 features but I've been
> >> >> hearing some negative feedback.
> >> >> The people that I did hear negative feedback don't use Arista themselves.
> >> >> (they just heard....)
> >> >>
> >> >> So do we have any Arista L3 people out here that can share some negatives
> >> >> or positives?
> >> >>
> >> >> Use case: Just some MPLS IPv4/IPv6 routing, l2vpn OSPF/BGP
> >> >> Maybe 20k routes (no full internet routes)
> >> >> 7050 Series
> >> >> 7280 Series
> >> >>
> >> >> -Romeo
> >> >>
> >>
> >
> >
>
>
>
>
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