ipv6 mld group limit
• Use to limit the number of MLD groups that an interface can accept.
• Example
host1:boston(config-if)#ipv6 mld group limit 5
• Use the no version to restore the default situation, in which there is no limit on the
number of MLD groups that an interface can accept.
• See ipv6 mld group limit.
multicast group port limit
• Use to limit the number of MLD groups that a port can accept.
• Specify the identifier for the port in slot/port format (ERX routers) or in slot/adapter/port
format (E120 and E320 routers) and the maximum number of MLD groups that
interfaces can accept.
• slot—Number of the chassis slot in the range 0–6 (ERX7xx models), 0–13 (ERX14xx
models), 0–5 (E120 router), or 0–16 (E320 router)
• adapter—Number of the bay in which the I/O adapter (IOA) resides. This identifier
applies to the E120 and E320 routers only. In the software, adapter 0 identifies the
right IOA bay (E120 router) and the upper IOA bay (E320 router); adapter 1 identifies
the left IOA bay (E120 router) and the lower IOA bay (E320 router).
• port—Port number on the I/O module or IOA
• Example 1—ERX models
host1(config)#multicast group port 3/0 limit 5
• Example 2—E120 and E320 routers
host1(config)#multicast group port 3/1/0 limit 5
• Use the no version to restore the default situation, in which there is no limit on the
number of MLD groups that a port can accept.
• See multicast group port limit.
Including and Excluding Traffic
MLDv2 extends MLDv1 functionality with the ability to include or exclude specific multicast
traffic sources. That is, with MLDv2, hosts signal (S,G) pairs that they want to include or
exclude.
For hosts that cannot signal group membership dynamically, you can use the ipv6 mld
static-include or ipv6 mld static-exclude command to statically include or exclude
multicast traffic, respectively.
MLDv2 is the industry-designated standard protocol for hosts to signal channel
subscriptions in SSM. For additional information about SSM, see “PIM Source-Specific
Multicast” on page 83.
187Copyright © 2010, Juniper Networks, Inc.
Chapter 6: Configuring Multicast Listener Discovery
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