Dell Force10 S55T S55 Configuration Guide FTOS 8.3.5.3 - Page 508
Use PIM-SSM with IGMP version 2 Hosts, Enabling PIM-SSM, Command Syntax, Command Mode
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www.dell.com | support.dell.com Step 2 Task Enter the command ip pim ssm-range and specify the ACL you created. Command Syntax ip pim ssm-range acl-name Command Mode CONFIGURATION Display address ranges in the PIM-SSM range using the command show ip pim ssm-range from EXEC Privilege mode. Figure 26-2. Enabling PIM-SSM 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 command ip igmp ssm-map acl 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 a SSM map is in place and FTOS 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, FTOS 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, FTOS displays an error message. If you apply an extended ACL before you create it, FTOS accepts the configuration, but when the ACL is later defined, FTOS ignores the ACL and the stated mapping has no effect. Display the source to which a group is mapped using the command show ip igmp ssm-map [group], as shown in Figure 26-4 on page 510. If use the group option, the command displays the group-to-source mapping even if the group is not currently in the IGMP group table. If you do not specify the group option, then the display is a list of groups currently in the IGMP group table that have a group-to-source mapping. Display the list of sources mapped to a group currently in the IGMP group table using the command show ip igmp groups group detail, as shown in Figure 26-4 on page 510. 508 | PIM Source-Specific Mode