3

Cisco IOS provides this hidden BGP command:

router bgp <ASN>
  bgp bestpath as-path multipath-relax

It allows the router to install multiple BGP prefixes with distinct as-path'es (but requiring same as-path length).

Source: http://blog.alwaysthenetwork.com/tutorials/bgp-multipath-relax/

Does JunOS provide a similar feature?

4

Yes, it is possible. Use the multiple-as option for the multipath setting like this:

set protocols bgp group MY-PEERS multipath multiple-as

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