Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 671
Con PIM-SMM, Related Configuration Tasks, Enabling PIM-SSM, Use PIM-SSM with IGMP Version 2
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Page 671 highlights
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 reestablishes the original (*,G) states. • You may enter multiple ssm-map commands for different access lists. You may also enter multiple ssm-map commands for the same access list, as long as they use different source addresses. • When an extended ACL is associated with this command, an error message is displayed. If you apply an extended ACL before you create it, the system accepts the configuration, but when the ACL is later defined, the system ignores the ACL and the stated mapping has no effect. PIM Source-Specific Mode (PIM-SSM) 671
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