[j-nsp] Segment Routing Real World Deployment (was: VPC mc-lag)

[Mark Tinka]

On 7/Jul/18 20:01, Aaron Gould wrote:

>
> I love my dual-ex4550 data center virtual chassis's  However, I enabled mpls vrf on one recently and didn't feel very good about proceeding... So I will revert to pure ethernet switching, I put 40 gig into it and AE for fat 80 gig pipe to PE...actually my Facebook FNA, Google ggc, Netflix oca and Akamai aanp, plus private data center stuff are all connected to that EX4550 virtual chassis x2 for site diversity and redundancy.  That's how solid they are.  I depend on them for all that content... And have for about 5 years... Pretty much never a problem.  Rock Solid.

We've been super happy with the EX4550, save for two issues:

  * VC bandwidth doesn't scale well. You have to be careful about having
    a large EX4550-based VC, either in terms of member nodes or
    bandwidth being switched.

  * Buffer memory is very low.

The EX4600 only took the portfolio up to about 12MB of buffer memory,
which is peanuts. But, as I've mentioned before, the back-breaker was
that ELS debacle.

So bye-bye rock solid EX4550, hello Arista. Juniper royally messed with
the pooch on this one.

No point in us trying to maintain a platform that is now EoS, and very
soon, will be EoL.

Mark.