6 inspection of multicast interface information – Hitachi GR2000 Series User Manual
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Hitachi Gigabit Router GR2000 Series Enhanced Version Operations - Device Management Overview
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GR2K-GA-0015
Ver. 07-02
occurred is not contained in the route information that the router acquired
or when the next hop address is illegal.
Step 4.
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
is contained in the route information that the router acquired. Examine the
relevant function.
Multicast communication
Go to Subsection 7.8.1.6, “Inspection of Multicast Interface
Information”.
RA function
Go to Subsection 7.8.1.8, “Inspection of RA Definition Information”.
Tunnel interface
Go to Subsection 7.8.1.11, “Confirmation on Information Set for the
Tunnel Interface”.
NAT-PT
Go to Subsection 7.8.4, “Troubleshooting NAT-PT Communication
Failures”.
7.8.1.6
Inspection of Multicast Interface Information
In the event that there is no routing information available despite an IPv6 multicast
packet having been received, the neighbor information and MLD group information
currently acquired by the Router needs to be checked out. The relevant checking
procedure is described below:
Step 1.
Log in to the Router.
Step 2.
Check out the neighbor information and MLD group information currently
acquired by the Router by using the commands shown in the table below.
For details on these commands, see GR2000 Operations Commands, Vol. 2,
and for the procedure for confirming multicast routing by protocol, see
Section 7.10.
Step 3.
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
is contained in the route information that the router acquired. Examine the
relevant function.
Table 7-28 Commands at the Time of IPv6 PIM Operation
No.
Command
Content of Check
1
show ipv6 pim interface
The IPv6 PIM interface is operating.
2
show ipv6 pim neighbor
There is a neighbor IPv6 PIM router.
3
show ipv6 rpf <IPv6 Address>
There is RPF for the IPv6 multicast data transmit source
4
show ipv6 mld interface
The MLD interface is operating.
5
show ipv6 mld group
The participating MLD group is recognized.
6
show ipv6 pim bsr
The BSR information of IPv6 PIM-SM is possessed.
7
show ipv6 pim rp mapping
The rendezvouz point information of IPv6 PIM-SM is possessed.
8
show ipv6 pim rp-hash <IPv6 Address>
There is a rendezvous point for the corresponding IPv6 address
(group address).
9
show ipv6 pim mroute
The routing information of IPv6 PIM-SM is possessed.