# Enabling Port-Level Admission Bandwidth Limitation for IPv6

You can use the mroute port admission-bandwidth-limit command to limit the total multicast bandwidth that can be admitted on a port. The admitted bandwidth is summed across all virtual routers with IPv4 and IPv6 mroutes that have OIFs on the port.

| Note: Admission bandwidth values for a given (S,G) mroute are determined from the bandwidth map. See Example: Configuring an IPv6 Multicast Bandwidth Map for details.

To configure a limit on the admission bandwidth of OIFs containing IPv4 or IPv6 mroutes, across different virtual routers, on a port:

- Issue the mroute port admission-bandwidth-limit command in Global Configuration mode.
  host1(config)#mroute port admission-bandwidth-limit 3000000

Use the no version to remove any OIF admission bandwidth limits.

#### Related Documentation

- Before You Begin
- Port-Level Admission Bandwidth Limits for IPv6 Overview
- OIF Port Reevaluation for IPv6
- Monitoring IPv6 Multicast Forwarding Entries
- Monitoring Active IPv6 Multicast Routes
- Monitoring Multicast Routes on Virtual Router Ports
- Monitoring Join Interface Details when IPv6 OIF Mapping is Configured
- Monitoring IPv6 Multicast Statistics
- Monitoring IPv6 Multicast Protocols Enabled on the Router
- mroute port admission-bandwidth-limit