[j-nsp] QFX mc-lag and v6 ND

[Phil Mayers]

On 05/02/16 14:40, Adam Vitkovsky wrote:

> -that's the only occasion the internet where NDP and MC-LAG in listed
> the same sentence, which is not a good sign on its own. But no
> explanation about how it is done, especially the part about how the
> ND Cache is maintained between the LAG members, which clearly is what
> is not happening in your case.

I must be missing something - why would a LAG of any type do any special 
processing of ND (or ARP, for that matter) traffic? All it has to do is 
forward the reply appropriately e.g. across the MC-LAG control link if 
the dest MAC is the peer switch or multi/broadcast.

Obviously if you're doing some sort of active-active L3 forwarding on 
top of the MC-LAG then special things need to happen - but did OP say that?

Or is there some subtlety (dumb-lety?) about the way Juniper do this?