Brocade Communications Systems IPMC5000PEF manual IGMPv2 SSM mapping

Displaying information for PIM SSM range ACL

The acl-id/acl-nameparameter specifies the ACL id or name used to configure multiple SSM group ranges.

To disable the SSM mapping range ACL, use the [no] form of this command.

NOTE

The ssm-enablerangeacl-idacl-nameor command also supports IPv6 traffic. The ssm-enablerangeacl-idacl-nameor command must be configured under the IPv6 router pim configuration to support IPv6.

Displaying information for PIM SSM range ACL

To display information for PIM SSM range ACL configuration enter the following command at any CLI level:

device#show ip pim sparse
Global PIM Sparse Mode Settings			Current Count	: 0
Maximum Mcache	: 0	30			105
Hello interval	:		Neighbor timeout	:
Join/Prune interval	:	60	Inactivity interval	:	180
Register Suppress Time :		60	Register Probe Time	:	10
SPT Threshold	:	1	Hardware Drop Enabled	:	Yes
Bootstrap Msg interval :		60	Candidate-RP Msg interval	:	60
Register Stop Delay	:	60	Register Suppress interval :		60
SSM Enabled	:	Yes
SSM Group Range	:	224.1.1.1/24
SSM Group Range ACL	:	xyz
Route Precedence	:	mc-non-default mc-default uc-non-default uc-default

NOTE

The show ipv6 pim sparse command also displays PIM SSM range ACL configuration.

IGMPv2 SSM mapping

The PIM-SSM feature requires all IGMP hosts to send IGMPv3 reports. Where you have an IGMPv2 host, this can create a compatibility problem. In particular, the reports from an IGMPv2 host contain a Group Multicast Address but do not contain source addresses. The IGMPv3 reports contain both the Group Multicast Address and one or more source addresses. This feature converts IGMPv2 reports into IGMPv3 reports through use of the ip igmp ssm-mapcommands and a properly configured ACL.

The ACL used with this feature filters for the Group Multicast Address. The ACL is then associated with one or more source addresses using the ip igmp ssm-mapcommand. When the ip igmp ssm- map enable command is configured, IGMPv3 reports are sent for IGMPv2 hosts.

The following sections describe how to configure the ACL and the ip igmp ssm-mapcommands to use the IGMPv2 SSM mapping feature:

•Configuring an ACL for IGMPv2 SSM mapping

•Configuring the IGMPv2 SSM Mapping Commands

NOTE

IGMPv2 SSM Mapping is not supported for IGMP static groups.

160	FastIron Ethernet Switch IP Multicast Configuration Guide
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