NEC IP8800/S2400 Series Troubleshooting Manual page 144

3.
Troubleshooting Functional Failures in Operation
No. Troubleshooting Steps and Command
5 Confirm in the configuration that suppression of protocol
packet and multicast packet relay through filtering, etc. is not
provided on the interface that allows PIM and MLD to run.
show running-config
6 Check the PIM neighboring information.
show ipv6 pim neighbor
7 Check to see if the unicast route to the multicast data sender
exists.
show ipv6 route
8 Confirm that PIM is running on the interface to the next hop
address for the multicast data sender.
show ipv6 pim interface
9 Confirm that the PIM-SSM group addresses do not contain the
relay target group address, referring to the configuration.
show running-config
10 Confirm that BSR is determined. However, this confirmation
is not required if the rendezvous point for the relay target group
address is a static rendezvous point.
show ipv6 pim bsr
11 Confirm that the rendezvous point is determined.
show ipv6 pim rp-mapping
12 Confirm that the rendezvous point group addresses contain the
relay target group address.
show ipv6 pim rp-mapping
13 Confirm that the multicast relay entry exists.
show ipv6 mcache
14 Confirm that the multicast routing information exists.
show ipv6 mroute
15 Confirm that multicast routing information or multicast
forwarding entry does not exceed the upper limit.
Multicast routing information:
show ip mroute
Multicast forwarding entry:
show ip mcache
netstat multicast
(2) BSR check items
The table below shows the items to be checked when this system is BSR in the IPv6 PIM-SM network configuration.
82
Action
If suppression of protocol packet and multicast packet relay is
provided, correct the configuration.
If the neighboring router is not displayed, check the
following:
• Confirm that PIM is running on the interface connected to
the neighboring router using the show ipv6 pim
command with "interface" parameter specified.
• Verify the settings of the neighboring router.
If the unicast route does not exist, see
Routing Communication Failure."
If PIM is not running, check the configuration. Set PIM to run
on the interface connected to the next hop address for the
multicast data sender.
If the PIM-SSM group addresses contain the relay target
group address, correct the configuration.
If BSR is not determined, check to see if the unicast route to
BSR exists. If the unicast route does not exist, see
Unicast Routing Communication
If the unicast route exists, check the BSR setting. If the BSR
is this system, see "(2)BSR check
If the rendezvous point is not determined, check to see if the
unicast route to the rendezvous point exists. If the unicast
route does not exist, see "3.10 IPv6 Unicast Routing
Communication Failure."
If the unicast route exists, check the rendezvous point setting.
If the rendezvous point is this system, see
point router check items."
If the relay target group address is not contained, check the
rendezvous point setting.
If the multicast relay entry does not exist, confirm that
multicast data has arrived at the upstream port. If multicast
data has not arrived, check the setting of the multicast sender
or upstream router.
If the multicast routing information does not exist, check the
setting of the downstream router.
When warning is output, confirm that unexpected multicast
routing information or unexpected multicast forwarding entry
has not been created. If much of the negative cache exists in
multicast forwarding entry, check to see if no terminal
transmitting unnecessary packets exist.
"3.10 IPv6 Unicast
"3.10 IPv6
Failure."
items."
"(3)Rendezvous