Cisco XR 12000 Series Configuration Manual page 68

How to Implement Multicast Routing
Command or Action
Step 3
sa-filter {in | out} {ip-address | peer-name}
[list access-list-name] [rp-list
access-list-name]
Example:
RP/0/0/CPU0:router(config-msdp)# sa-filter out
router.cisco.com list 100
Step 4
cache-sa-state [list access-list-name] [rp-list
access-list-name]
Example:
RP/0/0/CPU0:router(config-msdp)# cache-sa-state
100
Step 5
ttl-threshold ttl-value
Example:
RP/0/0/CPU0:router(config-msdp)# ttl-threshold
8
Step 6
exit
Example:
RP/0/0/CPU0:router(config-msdp)# exit
Multicast Configuration Guide
MCC-60
Implementing Multicast Routing on Cisco IOS XR Software Cisco ASR 9000 Series Routers
Purpose
Configures an incoming or outgoing filter list for messages
received from the specified MSDP peer.
• If you specify both the list and rp-list keywords, all
conditions must be true to pass any source, group (S, G)
pairs in outgoing Source-Active (SA) messages.
You must configure the ipv4 access-list command in
•
Step 7.
If all match criteria are true, a permit from the route
•
map passes routes through the filter. A deny filters
routes.
This example allows only (S, G) pairs that pass access
•
list 100 to be forwarded in an SA message to the peer
named router.cisco.com.
Creates and caches source/group pairs from received
Source-Active (SA) messages and controls pairs through
access lists.
(Optional) Limits which multicast data is sent in SA
messages to an MSDP peer.
Only multicast packets with an IP header TTL greater
•
than or equal to the ttl-value argument are sent to the
MSDP peer specified by the IP address or name.
Use this command if you want to use TTL to examine
•
your multicast data traffic. For example, you could
limit internal traffic to a TTL of 8. If you want other
groups to go to external locations, send those packets
with a TTL greater than 8.
This example configures a TTL threshold of eight hops.
•
Exits the current configuration mode.
OL-