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MC-LAG with VRRP through DWDM connection?

a week ago

Hi all,

 

Just want get some advise. Let's say CE ---> Switch-EX3400 (ae) ---> (multiple dwdm) ----> (MC-LAG with VRRP) MX480-1 & MX480-2 . Is it good ok if i setup like this. The MX480-1 & MX480-2 is different geo location.  

 

If the connection not through DWDM so it no problem but i'm not sure if through DWDM. Is it we can use BFD under vrrp for failover detection?

 

Thanks and appreciate any feedback

 

5 REPLIES 5
Routing

Re: MC-LAG with VRRP through DWDM connection?

a week ago

As long as you can keep the link stable with minimum delay, this should be fine. BTW, how far away are you expecting to put MX1 and MX2 ? 


Mengzhe Hu
JNCIE x 3 (SP DC ENT)
Routing

Re: MC-LAG with VRRP through DWDM connection?

a week ago

Hi Kronicklez,

 

The transport medium (dwdm) doesn't make any difference in VRRP operation as long as the VRRP advertisements make it to the VRRP backup.

 

BFD under VRRP is not supported.

 

If you want you can play with VRRP advertisement timers, default advertisement timer is 1 sec.

 

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/vrrp-master-router-adver...

 

PS: Please accept my response as solution if it answers your query, kudos are appreciated too!

 

Thanks

Vishal

Routing

Re: MC-LAG with VRRP through DWDM connection?

a week ago

Hi Mengzhu / vlsing,

 

The distance between MX-1 and MX-2 around 200km and involve multiple DWDM connection.  Is it advisable if MC-LAG deploy on different geo-location. Any advise on failover time / latency need to be concern or any other factor?

 

Thanks and appreciate any feedback.

 

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Solution
Accepted by topic author kronicklez
a week ago

Re: MC-LAG with VRRP through DWDM connection?

a week ago

Hi ,

 

I have seen MC-LAG over DWDM. The setup I had seen has "init-delay-time 240" other than that I didn't notice any other timer configuration.

 

Refer: https://kb.juniper.net/KB32698

 

I haven't had much hands on experience on this,  I would suggest you to test out the desired config in your envrinmonet before rolling out in production.

Thanks
Vishal

Routing

Re: MC-LAG with VRRP through DWDM connection?

a week ago

Hi vlsing,

 

Thanks for the link and advise.