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Mark Pace Balzan
Beginner

XR prefix-set with mixed v4 and v6

Hi All,

Im setting up a prefix-set as part of a route policy facing an ebgp upstream transit provider over which I will be running v4 and v6

Question is this:  The prefix-set config allows to add both v4 and v6 prefixes to the same list, which looks like a great idea having one common prefix-set.  However is this mix the recommended way to move forward, or is it better to keep v4 and v6 as separate prefix-sets on separate policies, which anyway need to be applied to separate neighbours ?

Also is anyone actually using such a prefix-set with mixed v4 and v6 in production ?

thanks

Mark

1 REPLY 1
Alexei Kiritchenko
Cisco Employee

Hi Mark,

It works indeed but I can’t confirm its life usage.

In any case, when you apply a route-policy it would go under specific neighbor and under specific address family: IPv6 or IPv4. So as it is anyway separated at the end i’d go for separated prefix-sets to simplify a maintenance and troubleshooting.

Regards,

/A