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3. Troubleshooting Functional Failures in Operation
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Table 3-39: BSR Check Items
(3) Rendezvous point router check items
The table below shows the items to be checked when this system is the rendezvous point router in the IPv6 PIM-SM
network configuration.
Table 3-40: Rendezvous Point Router Check Items
(4) last-hop-router check items
The table below shows the items to be checked when this system is the last-hop-router in the IPv6 PIM-SM network
configuration.
Table 3-41: last-hop-router Check Items
No. Troubleshooting Steps and Command Action
1 Confirm that this system is a candidate for BSR.
show ipv6 pim bsr
If this system is not a candidate for BSR, check the
configuration and set the configuration to run this system as a
candidate for BSR. Since this system does not run as a
candidate for BSR if no address is set for the loopback
interface, confirm that an address is set for the loopback
interface.
2 Confirm that this system is BSR.
show ipv6 pim bsr
If this system is not BSR, check the priority of other BSR
candidates. The larger the value, the higher the priority. If the
same priority is provided, the BSR candidate with the largest
BSR address becomes BSR.
No. Troubleshooting Steps and Command Action
1 Confirm that this system is a candidate of rendezvous point for
the relay target group address.
show ipv6 pim rp-mapping
If this system is not a candidate of rendezvous point for the
relay target group address, check the configuration and set the
configuration to run this system as a candidate of rendezvous
point for the relay target group address. Since this system does
not run as a candidate of rendezvous point if no address is set
for the loopback interface, confirm that an address is set for
the loopback interface.
2 Confirm that this system is the rendezvous point for the relay
target group address.
show ipv6 pim rp-hash <Group Address>
If this system is not the rendezvous point, check the priority of
other candidates of rendezvous point. The smaller the value,
the higher the priority. If the priority of another candidate of
rendezvous point is higher, this system does not run as the
rendezvous point. If the same priority is provided, the
rendezvous point is distributed for each group address
according to the protocol specifications and this system may
not run as the rendezvous point. To run this system
preferentially as the rendezvous point, set the priority higher
than those of other rendezvous point candidates.
No. Troubleshooting Steps and Command Action
1 Confirm that MLD is running on the interface connected to the
multicast receiver.
show ipv6 mld interface
If MLD is not running, check the configuration and set the
configuration to run MLD.
2 Confirm that the multicast receiver participates in the relay
target group via MLD.
show ipv6 mld group
If the multicast receiver does not participate in the relay target
group, check the setting of the multicast receiver.
3 participates and PIM is running, confirm that this system is
DR.
show ipv6 pim interface
If this system is not DR, check DR of the relay target interface.