sh bgp neighbors <> advertised-routes detail does not show communities set by route-map

[g00g1]

Description

When adding a community via route-map, it is impossible to see if there is any community announced to the neighbor.

Version

FRRouting 9.0 (XXX.XXX) on Linux(5.14.0-284.25.1.el9_2.x86_64).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
configured with:
    '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--program-prefix=' '--disable-dependency-tracking' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/var/lib' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--sbindir=/usr/lib/frr' '--sysconfdir=/etc/frr' '--localstatedir=/var/run/frr' '--disable-static' '--disable-werror' '--enable-irdp' '--enable-multipath=256' '--enable-vtysh' '--enable-ospfclient' '--enable-ospfapi' '--enable-rtadv' '--enable-ldpd' '--enable-pimd' '--enable-pim6d' '--enable-pbrd' '--enable-nhrpd' '--enable-eigrpd' '--enable-babeld' '--enable-vrrpd' '--enable-user=frr' '--enable-group=frr' '--enable-vty-group=frrvty' '--enable-fpm' '--enable-watchfrr' '--disable-bgp-vnc' '--enable-isisd' '--enable-rpki' '--enable-bfdd' '--enable-pathd' '--enable-snmp' 'build_alias=x86_64-redhat-linux-gnu' 'host_alias=x86_64-redhat-linux-gnu' 'PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig' 'CC=gcc' 'CXX=g++' 'LT_SYS_LIBRARY_PATH=/usr/lib64:'

How to reproduce

Having the following configuration:

router bgp 2XXXX7
 no bgp default ipv4-unicast
 neighbor fc00::X:X:X:1 remote-as 5XXX1
 !
 address-family ipv6 unicast
  neighbor fc00::X:X:X:1 activate
  neighbor fc00::X:X:X:1 prefix-list pl-v6-5XXX1-all out
  neighbor fc00::X:X:X:1 route-map rm-5XXX1-out out
 exit-address-family
exit
!
ipv6 prefix-list pl-v6-5XXX1-all seq 5 permit 2XXX:XXXX:XXXX::/48 ge 48 le 48
ipv6 prefix-list pl-v6-5XXX1-antiddos seq 5 permit 2XXX:XXXX:XXXX::/48 ge 48 le 48
!
route-map rm-5XXX1-out permit 10
 match ipv6 address prefix-list pl-v6-5XXX1-antiddos
 set community 5XXX1:777 additive
exit
!
route-map rm-5XXX1-out permit 100
exit
!
end

We can't see if there are any communities announced:

XXX.XXX# sh bgp neighbors fc00::X:X:X:1 advertised-routes detail
BGP table version is 166, local router ID is 192.168.0.6, vrf id 0
Default local pref 100, local AS 2XXXX7
BGP routing table entry for 2XXX:XXXX:XXXX::/48, version 153
Paths: (1 available, best #1, table default)
  Advertised to non peer-group peers:
  fc00::X:X:X:1
  Local
    2XXX:XXXX:XXXX::9 from 2XXX:XXXX:XXXX::9 (192.168.0.5)
    (fe80::702b:ffff:fed2:9542) (used)
      Origin IGP, metric 0, localpref 100, valid, internal, best (First path received)
      Last update: Mon Mar  4 16:32:12 2024

Total number of prefixes 1

Expected behavior

Communities are visible for an announced routes.

Actual behavior

There are no communities visible for announced routes. However, community 5XXX1:777 is actually added.

Additional context

No response

Checklist

• I have searched the open issues for this bug.
• I have not included sensitive information in this report.

[ton31337]

It depends... Do you have a single peer or multiple peers?

[g00g1]

I have multiple peers. The config I have attached to this discussion is only covering relevant part of my issue.

[alexdns1]

It would be nice if we are able to see the communities advertised per prefix

[ma2t]

Great idea, this would be really helpful.