Cisco CRS Series User Manual

For example, the ssm command could be executed from the multicast-routing configuration submode like
this:
RP/0/RP0/CPU0:router(config)# multicast-routing
RP/0/RP0/CPU0:router(config-mcast-ipv4)# ssm range
Alternatively, you could issue the same command from the global or XR config mode like this:
RP/0/RP0/CPU0:router(config)# multicast-routing ssm range
The following multicast protocol-specific submodes are available through these configuration submodes:
Multicast-Routing Configuration Submode
When you issue the multicast-routing ipv4 or multicast-routing ipv6 command, all default multicast
components (PIM, IGMP, MLD, MFWD, and MRIB) are automatically started, and the CLI prompt changes
to “config-mcast-ipv4” or “config-mcast-ipv6”, indicating that you have entered multicast-routing configuration
submode.
PIM Configuration Submode
When you issue the router pim command, the CLI prompt changes to “config-pim-ipv4,” indicating that you
have entered the default pim address-family configuration submode.
To enter pim address-family configuration submode for IPv6, type the address-family ipv6 keyword together
with the router pim command before pressing Enter.
IGMP Configuration Submode
When you issue the router igmp command, the CLI prompt changes to “config-igmp,” indicating that you
have entered IGMP configuration submode.
MLD Configuration Submode
When you issue the router mld command, the CLI prompt changes to “config-mld,” indicating that you have
entered MLD configuration submode.
MSDP Configuration Submode
When you issue the router msdp command, the CLI prompt changes to “config-msdp,” indicating that you
have entered router MSDP configuration submode.
Understanding Interface Configuration Inheritance
Cisco IOS XR Software allows you to configure commands for a large number of interfaces by applying
command configuration within a multicast routing submode that could be inherited by all interfaces. To
override the inheritance mechanism, you can enter interface configuration submode and explicitly enter a
different command parameter.
Cisco IOS XR Multicast Configuration Guide for the Cisco CRS Router, Release 5.2.x
66
Implementing Multicast Routing on Cisco IOS XR Software
Understanding Interface Configuration Inheritance

Cisco CRS Series Specifications

General

Category	Network Router
Operating System	Cisco IOS XR
Form Factor	Modular chassis
Routing Capacity	Up to 322 Tbps
Interface Support	10 Gigabit Ethernet, 40 Gigabit Ethernet, 100 Gigabit Ethernet
Maximum Throughput	Up to 322 Tbps
Line Card Slots	4, 8, 16
Dimensions	Varies by chassis
Weight	Varies by chassis
Model	Cisco CRS Series