We use for instance Arista devices.
When you want to lookup snmp values within a VRF we need to add the vrf-name to the snmp community.
For instance for the default values the community will be for instance "public"
For reading out the values from the "internet" VRF we need to use the community "public@internet"
As far as we know the same is accurate for Juniper devices.
Right now you are only able to provide 1 default community but instead we need to have different communities per VRF.
So we'd like to have the possibility to read for instance the BGP tables within these VRF instances.
When this is available it should also be possible that the routing tables can be read-out within these VRF instances.