nanog mailing list archives
Re: [c-nsp] Devil's Advocate - Segment Routing, Why?
From: Mark Tinka <mark.tinka () seacom mu>
Date: Sat, 20 Jun 2020 23:25:05 +0200
On 20/Jun/20 19:58, Gert Doering wrote:
The 6880/6840 products were promising at that time, but the pricing made it uninteresting. So we kept our 6506Es for a time...
We haven't done anything with them since we bought and deployed them in 2014. They are serving their purpose quite well, and when it's time for them to go, the Arista kicks.
... and then went to Arista 7050SX2/SX3 for the "edge things" (small routing table, lots of 10G/25G ports, small power draw, EVPN/VXLAN). Nice stuff like the JSON RPC API, which is nice to work with and amazingly *fast* (compared to JunOS commit times...). And, most important, a good TAC and a company interested in listening to their customers.
We run the 7508E for core switching in large PoP's, and the 7280R for data centre access aggregation in all PoP's (this replaced our Juniper EX4550 and EX4600 platforms). We are very happy - but these are pure Layer 2 switching use-cases.
I'm a bit annoyed that the 7050SX* do not have MPLS-P support (because we have MPLS PEs that basically "live behind" the 7050SX, and now need to have vlans *through* them, to reach a MPLS P router). I do understand that the BRCM Trident is fairly limited wrt MPLS handling, so Arista decided "better no MPLS than something which is not enough for people" - unfortunately for us, because we only want "LDP and single-label swap/pop", but I can accept the technical arguments to some extent.
You know how I feel about Broadcom chips :-). If Arista aren't that comfortable about them, you'd do well to take them at their word, hehe.
(As a side note, changing our network from EIGRP to OSPF for IPv4 did not come for free, so I would have much preferred to stay in my self- chosen vendor lock-in with Cisco. But Cisco has gone insane these days, and new boxes like the NCS5500 come *without* EIGRP support. So they really do not want us customers locked in...)
Looking at things, it's probably cheaper for you to spend money on getting an open IGP than spending money dealing with the indecision Cisco sometimes goes through. Mark.
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- Re: [c-nsp] Devil's Advocate - Segment Routing, Why?, (continued)
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- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 20)
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- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 19)
- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Tim Durack (Jun 19)
- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 19)
- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Tim Durack (Jun 19)
- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 19)
- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Tim Durack (Jun 19)
- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? steve ulrich (Jun 19)
- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 19)
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- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 20)
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- Re: [c-nsp] Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 20)
- Re: Devil's Advocate - Segment Routing, Why? Anoop Ghanwani (Jun 19)
- Re: Devil's Advocate - Segment Routing, Why? Robert Raszuk (Jun 19)
- Re: Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 20)
- Re: Devil's Advocate - Segment Routing, Why? Sabri Berisha (Jun 20)
- Re: Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 21)
- Re: Devil's Advocate - Segment Routing, Why? Owen DeLong (Jun 20)
- Re: Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 17)
- Re: Devil's Advocate - Segment Routing, Why? Saku Ytti (Jun 17)