BGP - Extended Community List
VyOS provides policies commands exclusively for BGP traffic filtering and manipulation: extcommunity-list is one of them.
Set description for extcommunity-list policy.
Set action to take on entries matching this rule.
Regular expression to match against an extended community list, where text could be:
<aa:nn:nn>: Extended community list regular expression.
<rt aa:nn:nn>: Route Target regular expression.
<soo aa:nn:nn>: Site of Origin regular expression.