OIF Port Reevaluation for IPv6

If you change the admission bandwidth for a port, all mroutes with an outgoing interface (OIF) on that port are reevaluated as follows:

As an example of this function, if the port has accepted a total bandwidth of 3000000 bits per second (bps), and you set a limit of 2000000 bps on the port, the router does not disconnect any already connected OIFs but prevents the interfaces from accepting any more groups. Over time, some groups leave the interfaces and, eventually, the port limit of 2000000 bps is reached and maintained by the router.

If you set limits for both a port and interfaces on that port, the router uses the lower of the two limits when determining whether or not an interface can accept any new Multicast Listener Discovery (MLD) groups. For example, if you specify an admission bandwidth limit of 2000000 bps for the port and 3000000 bps groups for each interface, additional groups can only be accepted until the port limit of 2000000 bps is reached.

Related Documentation