25-18
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 25 Configuring IPv4 Multicast VPN Support
Configuring MVPN
This example show how to configure an MSDP peer:
Router(config)# ip msdp peer router.cisco.com connect-source fastethernet 1/1 remote-as 109
Enabling IPv4 Multicast Header Storage
To enable IPv4 multicast header storage, perform this task:
When enabling IPv4 multicast header storage, note the following information:
• vrf vrf_name—Allocates a buffer for the specified VRF.
• rtp—(Optional) Also caches Real-Time Transport Protocol (RTP) headers.
• The buffers can be displayed with the show ip mpacket command.
This example show how to enable IPv4 multicast header storage:
Router(config)# ip multicast vrf blue cache-headers
Configuring the Maximum Number of Multicast Routes
To configure the maximum number of multicast routes, perform this task:
When configuring the maximum number of routes, note the following information:
• vrf vrf_name— Enables route limiting for the specified VRF.
• limit—The number of multicast routes that can be added. The range is from 1 to 2147483647, with
a default of 2147483647.
• threshold—(Optional) Number of multicast routes that can be added before a warning message
occurs. The valid range is from 1 to the value of the limit parameter.
This example show how to configure the maximum number of multicast routes:
Router(config)# ip multicast vrf blue route-limit 200000 20000
Command or Action Purpose
Router(config)# ip multicast vrf
vrf_name
cache-headers [rtp]
(Optional) Enables a circular buffer to store IPv4 multicast
packet headers.
Router(config)# no ip multicast vrf
vrf_name
cache-headers [rtp]
Disables IPv4 multicast header storage.
Command or Action Purpose
Router(config)# ip multicast vrf
vrf_name
route-limit
limit
[
threshold
]
(Optional) Configures the maximum number of multicast
routes that can be added for multicast traffic.
Router(config)# no ip multicast vrf
vrf_name
route-limit
limit
[
threshold
]
Clears the configured maximum number of routes.
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