[j-nsp] Migrating to MVPN

[Dragan Jovicic]

Hello,

This is not tied directly only to JNPR, but suppose the following scenario.
STBs in our IPTV multicast network are using only multicast service
provided by global IP core network in our environment. Meaning - no MPLS,
traditional PIM-SM topology in global table.
STBs are using private addressing scheme.

Suppose now STBs need to access the public internet.
One solution would be migration to MVPN. This would steer traffic from STBs
to CGNAT making it work on public network.
Significant drawback seems to be making it all work during transition since
many multicast services are communicating via this global IP core network -
to put this specific service into VPN would require certain considerations
to put it mildly.

Just brainstorming - what would be other possible solutions, if any?
No source routing allowed to steer traffic to CGNAT.
Putting another public IP on each STB is not possible.
Putting IPv6 on STB just for Internet, is not possible.

Thanks