Hitachi GR2000 Series - Manual (Page 193)

Troubleshooting
GR2K-GA-0015 7-27
Ver. 07-02
NAPT-PT function
Go to Subsection 7.8.4, “Troubleshooting NAT-PT Communication
Failures.
MPLS function
Go to Section 7.11, “Communication faults of MPLS [ROUTE-OS7]”.
7.5.1.7 Inspection of Multicast Information
If the route information does not exist despite the reception of a multicast packet,
you must inspect the neighbor device information and the IGMP group information
which have been obtained by the own router. The inspection procedure is shown
below.
Step 1. Log in to this router from the device management terminal.
Step 2. In accordance with Table 7-22 and Table 7-23 below, inspect the neighbor
device information and the IGMP group information which have been
obtained by the own router. For details of the commands in these tables,
see GR2000 Operations Commands, Vol. 2.
Step 1. A problem is judged to exist in the functions below that are set to the
interface in which communication is not possible when the route
information of an interface in which a communication failure has occurred
Table 7-22 Inspection of Multicast Interface Information in PIM Mode
No. Command Inspection Contents
1 show ip pim interfaces See if PIM interface is running.
2 show ip pim neighbors See if a neighbor PIM router exists.
3 show ip rpf XXX.XXX.XXX.XXX See if the RPF corresponding to the transmission
source of multicast data exists.
4 show ip igmp interfaces See if IGMP interface is running.
5 show ip igmp groups See if the IGMP group accommodating this router is
recognized.
6* show ip pim bsr BSR information for PIM-SM shall be maintained.
7* show ip pim rp mapping Rendezvous point information for PIM-SM shall be
maintained.
8* show ip pim rp-hash XXX.XXX.XXX.XXX The rendezvous point for the said address (group
address) shall exist.
9* show ip mroute Route information for PIM-SM shall be maintained.
* No. 6 to 9: Only for PIM-SM.
Table 7-23 Inspection of Multicast Interface Information in DVMRP Mode
No. Command Inspection Contents
1 show ip dvmrp interfaces See if DVMRP interface is running.
2 show ip dvmrp neighbors See if a neighbor DVMRP router exists.
3 show ip dvmrp route xxx.xxx.xxx.xxx See if the route corresponding to the transmission
source of multicast data exists.
4 show ip igmp interfaces See if IGMP interface is running.
5 show ip igmp groups See if the IGMP group accommodating this router is
recognized.