Note: This applies to both standard and large communities alike, as well as IPv4 and IPv6. Please make sure to fix them all.
In VyOS 1.4 and 1.5, the "old" way of looking at large communities and communities is like so:
vyos@cr01-vyos# run show ip bgp large-community-info Address Refcnt Large-community [0x558fae073930] (279) 4242420696:100:1 [0x558fae116340] (32) 4242420696:10:1 [0x558fae098ad0] (12) 4242420696:10:2 vyos@cr01-vyos# run show ip bgp community-info Address Refcnt Community [0x558fae0a8d90] (14) blackhole
The "new" way is supposed to be under show bgp ipv4 ..., and some of the command completions exist but it does not work:
vyos@cr01-vyos:~$ show bgp ipv4 large-community-info
% Unknown command: show bgp ipv4 large-community-info
vyos@cr01-vyos:~$ show bgp ipv4 large-community-info
Possible completions:
<Enter> Execute the current command
bestpath Display only the bestpath
longer-prefixes Display route and more specific routes
multipath Display only multipaths
vyos@cr01-vyos:~$ show bgp ipv4 large-community-info bestpath
% Unknown command: show bgp ipv4 large-community-info bestpath
vyos@cr01-vyos# run show bgp ipv4
Possible completions:
<Enter> Execute the current command
<x.x.x.x> Network in the BGP routing table to display
<x.x.x.x/x>
<h:h:h:h:h:h:h:h>
<h:h:h:h:h:h:h:h/x>
community Display routes matching the community
community-list Display routes matching the community-list
dampening Display detailed information about dampening
filter-list Display routes conforming to the filter-list
flowspec Flowspec Address Family modifier
large-community Show BGP routes matching the specified large-communities
large-community-list Display routes matching the large-community-list
neighbors Detailed information on TCP and BGP neighbor connections
prefix-list Display routes conforming to the prefix-list
regexp Display routes matching the AS path regular expression
route-map Show BGP routes matching the specified route map
statistics RIB advertisement statistics
summary Summary of BGP neighbor status
vpn VPN Address Family modifier
wide Increase table width for longer prefixes