There is a bug int the [[ https://github.com/vyos/vyos-1x/blob/60f093464692f08c1c32c9e31513a6ae98636617/interface-definitions/policy.xml.in#L1089 | regex ]]
Impossible to mark several extcommunity values.
```
vyos@testrouter# set policy route-map FOO rule 10 set extcommunity rt '1111:2222222'
[edit]
vyos@testrouter#
[edit]
vyos@testrouter# set policy route-map FOO rule 10 set extcommunity rt '1111:2222222 33:444444'
Should be in form: ASN:NN or IPADDR:NN where ASN is autonomous system number
Value validation failed
Set failed
[edit]
vyos@testrouter#
```