D-Link DXS-3600 Series Reference Manual page 572

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
46-9 ip igmp ssm-map static
This command is used to create a static SSM mapping entry for IGMPv1 or IGMPv2 hosts. Use the no
form of the command to delete an entry.
ip igmp ssm-map static ACCESS-LIST SOURCE-ADDRESS
no ip igmp ssm-map static ACCESS-LIST SOURCE-ADDRESS
Parameters
ACCESS-LIST
SOURCE-ADDRESS
Default
None.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
The deployment of source specific multicast (SSM) allows the network service provider to manage the IP
multicast address easily.
When SSM is enabled, the last hop router will initiate to establish a source-based tree for the channel (S,
G) on receiving a (S, G) INCLUDE mode request that falls in the SSM range from the attached IGMPv3
hosts.
There are cases that the attached host is IGMPv1 or IGMPv2 hosts which only issue (*, G) requests. With
the SSM mapping, if the multicast group being requested that falls in the SSM range, the router is able to
map the (*, G) to a (S, G) requests based on the group address to source address mapping defined by
the ip igmp ssm-map static command. The router will then issue to establish the source-based tree for
the mapped (S, G).
The command can be issued multiple times. A group address can be associated with multiple source
addresses if it is defined in multiple access lists. If multiple associations exist, the router will issue to
establish a (S, G) source-based tree for each S.
Example
This example shows how to configure the SSM group range, enable the SSM mapping, and configure the
SSM mapping entry.
Switch# configure terminal
Switch(config)# ip access-list SSM-GROUP
Switch(config-ip-acl)# permit any 232.0.0.0 255.0.0.0
Switch(config-ip-acl)# exit
Switch(config)# ip pim ssm range SSM-GROUP
Switch(config)# ip igmp ssm-map enable
Switch(config)# ip access-list CHANNEL-1
Switch(config-ip-acl)# permit any 232.1.1.1 255.255.255.255
Switch(config-ip-acl)# exit
Specifies a standard IP access list that contains the multicast groups
to be mapped. To permit a group, specify "any" in source address field
and specify the group address in destination address field of the
access list entry.
Specifies the source address to be associated with the group defined
in the access list.
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