[j-nsp] BGP add-path on QFX

Vincent Bernat bernat at luffy.cx
Fri Jan 27 09:40:34 EST 2017

 ❦ 27 janvier 2017 14:17 GMT, <adamv0025 at netconsultings.com> :

>> I am using some QFX as route reflectors and would like to use BGP add-path
>> feature. The documentation says that QFX is a supported platform[0] while
>> the feature explorer says no QFX has support for that[1].
>> [0]:
>> http://www.juniper.net/techpubs/en_US/junos16.1/topics/example/bgp-
>> add-path.html
>> [1]: https://pathfinder.juniper.net/feature-explorer/feature-
>> info.html?fKey=3294&fn=For+internal+BGP+(IBGP),+advertise+multiple+pat
>> hs+to+a+destination
>> I have upgraded some QFX to 16.1R3 but there is no difference with
>> 14.1X53-D40: add-path is an hidden command and only "receive" is available
>> ("send" is not accepted):
>>   set protocols bgp group batman family inet unicast add-path send ...
>> I have also tried on MX104 running 14.1R8. Feature explorer says this
> should
>> be supported since 13.2R2. But I am in the exact same situation:
>> add-path is a hidden command and only "receive" is available.
> Is the RR use in MPLS-VPNs environment or just pure L3-IPv4/6 environment?
> If it's MPLS-VPNs environment, then you don't need add-path.

It's in a pure L3-IPv4/IPv6.

> Also if ORR is supported on QFX by any chance you might want to try that
> instead of add-path.
> Does it take the below? 
> set protocols bgp group batman optimal-route-reflection

Yes, it's accepted. But my goal is to get load balancing to a set of
hosts, not optimal path (all routes are equal in my setup). My
understanding of the above option is that it still selects only one
Use the fundamental control flow constructs.
            - The Elements of Programming Style (Kernighan & Plauger)

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