Configuring Route Maps To Control Rp Information Distribution; Configuring Route Maps To Control Rp Information Distribution (Pim) - Cisco Nexus 7000 Series Configuration Manual

Configuring Route Maps to Control RP Information Distribution

Configuring Route Maps to Control RP Information Distribution
You can configure route maps to help protect against some RP configuration errors and malicious attacks.
You use route maps in commands that are described in the Configuring Message Filtering.
By configuring route maps, you can control distribution of RP information that is distributed throughout the
network. You specify the BSRs or mapping agents to be listened to on each client router and the list of candidate
RPs to be advertised (listened to) on each BSR and mapping agent to ensure that what is advertised is what
you expect.
See the Configuring BSRs and Configuring Auto-RP for more information.
Note Only the match ipv6 multicast command has an effect in the route map.
Ensure that you have installed the Enterprise Services license and enabled PIM or PIM6.

Configuring Route Maps to Control RP Information Distribution (PIM)

Procedure
Step 1
Step 2
Step 3
Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide
106
Command or Action
config t
Example:
switch# config t
switch(config)#
route-map map-name | permit | deny]
[sequence-number]
Example:
switch(config)# route-map ASM_only permit
10
switch(config-route-map)#
Example:
switch(config)# route-map Bidir_only
permit 10
switch(config-route-map)#
match ip multicast {{rp ip-address [rp-type
rp-type]} {{group-range {gadrr_start to
gadrr_end} | {group ip-prefix}} {source
source-ip-address}
Example:
switch(config-route-map)# match ip
multicast group 224.0.0.0/4 rp 0.0.0.0/0
rp-type ASM
Example:
Configuring PIM and PIM6
Purpose
Enters global configuration mode.
Enters route-map configuration mode.
This configuration method uses the
Note
permit keyword.
Matches the group, RP, and RP type specified.
You can specify the RP type (ASM or Bidir).
This configuration method requires the group
and RP specified as shown in the examples.
BSR RP, auto-RP, and static RP
Note
cannot use the group-range
keyword. This command allows both
permit or deny. Some match mask
commands do not allow permit or
deny.