Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - MULTICAST ROUTING CONFIGURATION GUIDE 2010-10-07 Configuration Manual page 187

ipv6 multicast admission-bandwidth-limit
Copyright © 2010, Juniper Networks, Inc.
CAUTION: Before you can limit interface-level admission bandwidth, you
must first create a bandwidth map. See "Defining a Multicast Bandwidth
Map" on page 150 for details.
Enabling Interface Admission Bandwidth Limitation
You can use the ipv6 multicast admission-bandwidth-limit command to enable
multicast admission control on interfaces (including dynamic IP interfaces) that are
configured to run MLD. You can also use this command on a PIM (sparse-mode,
dense-mode, or sparse-dense-mode) interface if MLD is configured on the interface
(including the ipv6 mld version passive command).
Use to limit bandwidth for an interface that accepts MLD groups.
Use on any interface configured to run MLD.
Can also configure on a PIM (sparse-mode, dense-mode, or sparse-dense-mode)
interface if MLD (which you can configure using the ipv6 mld version passive
command) is also configured on the interface.
Example
host1:boston(config-if)#ipv6 multicast admission-bandwidth-limit 2000000
Use the no version to remove the bandwidth limitation for the interface.
See ipv6 multicast admission-bandwidth-limit.
OIF Interface Reevaluation Example
If you change the admission bandwidth for an interface, all mroutes with that interface
as an OIF are reevaluated as follows:
If the bandwidth limit is increased, blocked OIFs may become unblocked. If the interface
is a blocked OIF on multiple mroutes, the order in which the mroutes are visited, and
which (S,G) streams become unblocked, is not specified.
If the bandwidth limit is decreased, no currently admitted OIFs are blocked. However,
no new OIFs are admitted until the total admitted bandwidth for the interface drops
below the new limit.
If the bandwidth is increased to the point that the bandwidth limit for an interface is
now exceeded, no currently admitted OIFs for the affected mroutes are blocked.
However, no new OIFs are admitted until the total admitted bandwidth drops below
the configured limit.
NOTE: If the multicast bandwidth map that includes the set
admission-bandwidth command is changed, all affected mroutes are
reevaluated in the same manner described previously.
Chapter 5: Configuring IPv6 Multicast
165