# Multicast QoS Adjustment for IPv6

When the router uses multicast outgoing interface (OIF) mapping, any multicast streams that a subscriber receives bypass any configured QoS treatment for that subscriber interface. The Multicast QoS adjust feature provides a way in which the router can account for this multicast traffic.

- Multicast OIF Mapping Case for IPv6
- Multicast Traffic Receipt Without Forwarding for IPv6
- Activating IPv6 Multicast QoS Adjustment Functions