# Activating Multicast QoS Adjustment Functions

The ipv6 multicast-routing bandwidth-map command activates the specified bandwidth map. By activating the bandwidth map, this command also activates the multicast QoS adjustment function contained in the bandwidth map.

| Caution: To activate multicast QoS adjustment, you must first create a bandwidth map. See Defining a Multicast Bandwidth Map for details.

ipv6 multicast-routing bandwidth-map

- Use to enable the QoS adjust function on the router.
- Example
  host1(config)#ipv6 multicast-routing bandwidth-map mcast-bandwidths
- Use the no version to disable the multicast QoS adjustment function on the router.
- See ipv6 multicast-routing bandwidth-map.