Dell 9.7(0.0) Plumbing Product User Manual


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Configure PIM-SMM
Configuring PIM-SSM is a two-step process.
1. Configure PIM-SMM.
2. Enable PIM-SSM for a range of addresses.
Related Configuration Tasks
Use PIM-SSM with IGMP Version 2 Hosts
Enabling PIM-SSM
To enable PIM-SSM, follow these steps.
1. Create an ACL that uses permit rules to specify what range of addresses should use SSM.
CONFIGURATION mode
ip access-list standard name
2. Enter the ip pim ssm-range command and specify the ACL you created.
CONFIGURATION mode
ip pim ssm-range acl-name
Enabling PIM-SSM
To display address ranges in the PIM-SSM range, use the show ip pim ssm-range command from
EXEC Privilege mode.
R1(conf)#do show run pim
!
ip pim rp-address 10.11.12.2 group-address 224.0.0.0/4
ip pim ssm-range ssm
R1(conf)#do show run acl
!
ip access-list standard ssm
seq 5 permit host 239.0.0.2
R1(conf)#do show ip pim ssm-range
Group Address / MaskLen
239.0.0.2 / 32
Use PIM-SSM with IGMP Version 2 Hosts
PIM-SSM requires receivers that support IGMP version 3. You can employ PIM-SSM even when receivers
support only IGMP version 1 or version 2 by translating (*,G) entries to (S,G) entries.
Translate (*,G) entries to (S,G) entries using the ip igmp ssm-map acl command source from
CONFIGURATION mode. In a standard access list, specify the groups or the group ranges that you want
to map to a source. Then, specify the multicast source.
When an SSM map is in place and the system cannot find any matching access lists for a group, it
continues to create (*,G) entries because there is an implicit deny for unspecified groups in the ACL.
When you remove the mapping configuration, the system removes the corresponding (S,G) states that
it created and re-establishes the original (*,G) states.
672
PIM Source-Specific Mode (PIM-SSM)