Arista Layer3

David Hubbard dhubbard at dino.hostasaurus.com
Tue Mar 5 19:55:48 UTC 2019


On 3/5/19, 2:28 PM, "NANOG on behalf of Saku Ytti" <nanog-bounces at nanog.org on behalf of saku at ytti.fi> wrote:

    Hey Dmitry,
    
    > What do you think about Arista 7280SR (DCS-7280SR-48C6-M-R) as a BGP peering router with 3 x upstream with full route view in RIB (ipv4 + ipv6) and another IXP feed?
    > Considering switching from ASR9001 which is doing perfect work but has no more ports left.
    > The price is very competitive comparing to MX or ASR and this router-switch have 48x10Gig + 6x100GigE ports.
    
    You should compare 7280SR against NCS5500 and PTX1k, not ASR and MX.
    ANET is great company, with great people, but they are like 2 years
    old in SP market and this is quite visible. It is impressive though
    what they've done in so little time.
    
    -- 
      ++ytti
    
I love the NCS5501, but once Arista gets the 2M-route capacity down into the 48x10g format, I'd jump ship in a heartbeat; currently you have to do a much larger chassis-based device or their 100gig 7280 to have that route scale.  My big gripes with the 5501 are that, due to its architecture, if you want to do uRPF, you chop your route scale in half, even on the 5501-SE.  5501 also has no supported configuration where you have both first hop redundancy and physical path redundancy, because you can't do both VRRP (its only redundant first hop option) and BVI's, can't do MC-LAG, can't do vPC, so you need switches in addition to the 5501's if that's the goal..

David



More information about the NANOG mailing list