[mat-wg] feature request: have stat report on transitted prefixes

Hi MAT,

I'd really like the stat team to implement a tool that tells me what
prefixes are originated AND transitted by a given ASN. The use-case is
that I (before setting up BGP sessions) can make an automated assessment
what amount of prefixes the network will announce, which prefixes they
are likely to announce and if that matches up with the prefix-filter I
would apply on that bgp session.

A second use case is that when I want to connect a peer or customer to
which I have never been connected before, I have no idea what they will
announce to me. Should I want to make predictions for traffic
engineering purposes, it would be beneficial if I could fetch a list of
prefixes this peer is likely to announce to other peers from the stat
system.

A sliding window of say 30 days would be perfect, for my purposes I do
not need the tool to offer data going back to the beginning of time.

Do others agree that the above would be a useful feature?

Kind regards,

Job