Difference between ASR 901 and ASR 920

lovejit1313 · ‎10-30-2019

We are using ASR901 as PE router and We have two P routers for MPLS redundancy. We are using VPLS from the Service provider to connect PE to P. Due to the limitation on 901, I have to shut down the SVI interface on one P router at the time and it breaks the WAN redundancy for our client. They said replacing it with 920 will eliminate the issue.

I want to know whats the main differences between both 901 vs 920 routers and also looking for other cost-effective options that work great as PE router by using VPLS.

Thanks,

filopeter · ‎11-06-2019

Hello,

afaik the ASR901 does not support VPLS, just EoMPLS. You can you pseudowire redundancy to achieve high availability.

What kind of P routers do you use in your topology? Could you please provide some part of the configuration?

Best Regards,

P.

lovejit1313 · ‎11-06-2019

Hello @filopeter,

Can you explain more Pseudowire redundancy? Also is there any other cost-effective router available that supports MPLS over VPLS else than 901?

We are using ME3600 as P routers

Thanks

filopeter · ‎11-07-2019

Under pseudowire redundancy I mean the following configuration on ASR901

interface GigabitEthernet0/0/1
 no ip address
 !
 service instance 12 ethernet
   encapsulation dot1q 12
   rewrite ingress tag pop 1 symmetric
   xconnect 172.16.0.14 3333 encapsulation mpls
    backup peer 172.16.0.13 3333

If the primary PW goes down, the ASR 901 diverts traffic to the backup PW.