Specifications

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Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
OL-21227-02
Chapter 4 Configuring the Cisco MWR 2941 Router Using the CLI
Configuration Sequence
Step 9 Follow these steps to configure the Ethernet shorthaul interface.
e. Use the ip pim sparse-mode command to enables PIM on the interface. You must use sparse mode.
Router(config-if)# ip pim sparse-mode
f. Use the ip pim query-interval command to configure the frequency of Protocol Independent
Multicast (PIM) query (hello) messages.
Router(config-if)# ip pim query-interval 2
g. Use the ip igmp query-max-response-time command to configure the maximum response time
advertised in Internet Group Management Protocol (IGMP) queries.
Router(config-if)# ip igmp query-max-response-time 5
h. Use the ip pim version command to configure the Protocol Independent Multicast (PIM) version of
the interface.
Router(config-if)# ip pim version 2
i. Use the ip pim bsr-border command to prevent bootstrap router (BSR) messages from being sent
or received through an interface.
Router(config-if)# ip pim bsr-border
j. Use the ip igmp static-group command to configure static group membership entries on an
interface. When you configure the ip igmp static-group command, packets to the group are
fast-switched out the interface, provided that packets were received on the correct reverse path
forwarding (RPF) interface. Once configured, static group membership entries are added to the
IGMP cache and mroute table.
Router(config-if)# ip igmp static-group 239.193.0.3 source 10.234.0.125
Step 10 Exit configuration mode.
Router(config-if)# end
Router#
To verify your IP Multicast configuration, see Verifying a Multicast Configuration. For more
information about configuring Multicast, see the Cisco IOS IP Multicast Configuration Guide, Release
12.2SR.
Note The Cisco MWR 2941 does not support all of the commands described in the Cisco IOS Release 12.2SR
documentation.
Configuring Source Specific Multicast Mapping
SSM is a datagram delivery model that best supports one-to-many applications, also known as broadcast
applications. SSM is a core networking technology for the Cisco implementation of IP multicast
solutions targeted for audio and video broadcast application environments.
The Cisco MWR 2941 supports two types of SSM mapping.
• Static SSM Mapping—SSM static mapping enables you to configure the last hop router to use a
static map to determine the sources sending to groups. Static SSM mapping requires that you
configure access lists (ACLs) to define group ranges. The groups permitted by those ACLs then can
be mapped to sources using the ip igmp static ssm-map command. To configure static SSM
mapping, see Configuring Static SSM Mapping.