Dell Force10 E1200i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 595

Enable Snooping Explicit Tracking The switch can be a querier, and therefore also has the option of updating the group table through explicit-tracking (refer to Explicit Tracking). Whether the switch is the Querier or not, if snooping is enabled, the switch tracks all MLD joins. It has separate explicit tracking table which contains group, source, interface, VLAN and reporter details. Task Configure the system to remove a group immediately after receiving a Leave message. Display the MLD explicit-tracking table. Command Syntax ipv6 mld snooping explicit-tracking Command Mode VLAN INTERFACE show ipv6 mld snooping groups explicit EXEC Privilege Display the MLD Snooping Table Task Command Syntax Command Mode Display the MLD Snooping table. Display group information in the table. Group information can be filtered, refer to the FTOS Command Line Reference for the options available with this command. show ipv6 mroute mld show ipv6 mld snooping groups EXEC Privilege EXEC Privilege MLDv2 Snooping With MLDv1 Snooping, multicast forwarding tables are formed for a group, G, based on received MLDv1 reports. With MLDv2 Snooping, multicast forwarding tables are formed for a source and group pair, (S,G), based on received MLDv2 include reports. MLDv2 Snooping is compatible with MLDv1 hosts and selects a port as dynamic mrouter port when it receives Membership Query on that port. Port Inheritance on Mixed MLD Mode VLANs A mixed MLD mode VLAN is one which has multiple hosts belonging to the same group, but some hosts exclude a source (S,G), and others include the same source (S,G). Figure 30-4. Port Inheritance on Mixed-mode VLANs Snooping Table VLAN 10 1 234 MLDv2 (*,G) 1 (S,G) 1*, 3 IGMP (*,G) 1, 3 exclude (*,G) include (S,G) Multicast Listener Discovery | 595