Brocade BigIron RX Series Configuration Guide - Manual (Page 734)

656 BigIron RX Series Configuration Guide
53-1002484-04
Passive Multicast Route Insertion (PMRI)
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Configuring multicast boundaries
To define boundaries for PIM enabled interfaces, enter a commands such as the following.
BigIron RX(config)#interface ve 40
BigIron RX(config-vif-40)#ip multicast-boundary MyBrocadeAccessList
Syntax: [no] ip multicast-boundary <acl-spec> <port-list>
Use the acl-spec parameter to define the number or name identifying an access list that controls
the range of group addresses affected by the boundary.
Use the port-list parameter to define the member ports on which the ACL is applied. The ACL will be
applied to the multicast traffic arriving in both directions.
Use the no ip multicast boundary command to remove the boundary on a PIM enabled interface.
NOTE
The ACL, MyBrocadeAccessList can be configured using standard ACL syntax which can be found in
the ACL section.
Displaying multicast boundaries
To display multicast boundary information, use the show ip pim interface command.
BigIron RX#show ip pim interface
---------+----------------+----+---+----------------------+------+-------------
Interface|Local |Mode|Ver| Designated Router |TTL | Multicast |
|Address | | |Address Port |Thresh| Boundary |
---------+----------------+----+---+----------------------+------+-------------+
v10 10.1.2.1 SM V2 Itself 1 None
v30 123.1.1.2 SM V2 Itself 1 None
v40 124.1.1.2 SM V2 Itself 1 101
Syntax: show ip pim interface [ethernet <slot>/<portnum> | ve <num> ]
The ethernet <port-number> parameter specifies which physical port.
Enter ve <num> for a virtual interface.
Passive Multicast Route Insertion (PMRI)
To prevent unwanted multicast traffic from being sent to the CPU, Passive Multicast Route Insertion
(PMRI) can be used together to ensure that multicast streams are only forwarded out ports with
interested receivers and unwanted traffic is dropped in hardware on Layer 3 Switches. This feature
does not apply to DVMRP traffic.
PMRI enables a Layer 3 switch running PIM to create an entry for a multicast route (e.g., (S,G)), with
no directly attached clients or when connected to another PIM router (transit network).
When a multicast stream has no output interfaces, the Layer 3 Switch can drop packets in
hardware if the multicast traffic meets either of the following conditions.
In PIM-SM
• The route has no OIF and