Improved scaling for multicast OIFs

Rosen and next-generation MVPN, improvements have been made to increase the number of possible outgoing interfaces (OIFs) used in virtual routing and forwarding (VRF). Changes have also been made to improve the efficiency and scalability of PIM Join/Prune message processing.

These changes are implemented by default and do not need to be explicitly enabled.

The following operational commands support the increased scaling.

• show multicast next-hops terse
• show multicast route oif-count
• show multicast statistics interface
• show pim join downstream-count