HP 6125XLG R2306-HP 6125XLG Blade Switch IP Multicast Configuration Guide - Page 183
Solution, An RP cannot join an SPT in IPv6 PIM-SM, Symptom, Analysis, An RPT cannot be built or IPv6
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• Solution 1. 2. If an ACL is defined by the source-policy command, and the IPv6 multicast packets cannot match the ACL rules, IPv6 PIM cannot create the routing entries for the packets. Use display current-configuration to verify the IPv6 multicast forwarding boundary settings. Use ipv6 multicast boundary to change the multicast forwarding boundary settings to make the IPv6 multicast packet able to cross the boundary. Use display current-configuration to verify the IPv6 multicast data filter. Change the ACL rule defined in the source-policy command so that the source/group address of the IPv6 multicast data can pass ACL filtering. An RP cannot join an SPT in IPv6 PIM-SM Symptom An RPT cannot be correctly built, or an RP cannot join the SPT toward the IPv6 multicast source. Analysis • RPs are the core of an IPv6 PIM-SM domain. An RP provides services for a specific IPv6 multicast group, and multiple RPs can coexist on a network. Make sure the RP information on all routers is exactly the same to map a specific IPv6 multicast group to the same RP. Otherwise, IPv6 multicast forwarding fails. • If a static RP is configured, use the same static RP configuration on all routers on the entire network. Otherwise, IPv6 multicast forwarding fails. Solution 1. Use display ipv6 routing-table to verify that an IPv6 unicast route to the RP is available on each router. 2. Use display ipv6 pim rp-info to verify that the dynamic RP information is consistent on all routers. 3. Use display ipv6 pim rp-info to verify that the same static RPs are configured on all routers on the network. An RPT cannot be built or IPv6 multicast source registration fails in IPv6 PIM-SM Symptom The C-RPs cannot unicast advertisement messages to the BSR. The BSR does not advertise BSMs containing C-RP information and has no IPv6 unicast route to any C-RP. An RPT cannot be correctly established, or the source-side DR cannot register the IPv6 multicast source with the RP. Analysis • The C-RPs periodically send advertisement messages to the BSR by unicast. If a C-RP has no IPv6 unicast route to the BSR, it cannot send advertisement messages to the BSR, and the BSR cannot advertise BSMs containing the information of the C-RP. • If the BSR does not have an IPv6 unicast route to a C-RP, it discards the advertisement messages from the C-RP. Therefore, the BSR cannot advertise BSMs containing the information of the C-RP. 176