Hitachi GR2000 Series - Manual (Page 143)

Confirmation of interface state and routing state
GR2K-GA-0015 5-43
Ver. 07-02
5.7.2.6 PIM-SM routing information
Enter the show ipv6 mroute command from the terminal and confirm that the route to
the subject destination address exists. If no (S.G) entry exists, confirm that the (*, G)
entry exists. If no (*, G) exists, and if the in-coming, downstream is not correct,
investigate the adjacent router. (*,G) is not used (does not exist) in PIM-SSM.
Figure 5-80 PIM-SM Multicast Route Information
5.7.3 Confirming the MLD information
The contents of confirmation when a MLD function is set using the IPv6 multicast
routing information of the router are as described below.
5.7.3.1 Interface information
Execute a show ipv6 mld interface command and confirm the following.
Ensure that the Interface in the target Interface is appropriate. If no interface
name is shown, MLD is not operating in that interface. Check the configuration
information to see if the corresponding interface is set to “PIM enable.” In
addition, ensure that the interface is not failing.
Ensure that the Group Count (number of groups belonging to the own router) in
the target Interface is appropriate. If “0” is shown, there may be no Join Group or
the group host (PC) may not have sent the MLD-Report. Inspect the group host
PC.
> show ipv6 mroute
Total: 4 routes, 3 groups, 2 RPs
(S,G) 2 routes ------------------------------------------------------
Group Address Source Address
ff0e:ffff:1234:abcd:1234:ffff:1234:aaaa 3ffe:1::1
Uptime 02:00 Expires 02:30 Assert 01:00 Flags SF
in-coming : Multicast01234 upstream: Direct Reg-Sup: 60s
downstream: Multi2 uptime 02:30 expires 00:40
ff0e:ffff:1234:abcd:1234:ffff:1234:bbbb 3ffe:1::2
Uptime 02:00 Expires 02:30 Assert 01:00 Flags SF
in-coming : Multi1 upstream: Direct Reg-supÅF60s
downstream: localhost uptime 02:30 expires--:--
(*,G) 2 routes ------------------------------------------------------
Group Address RP Address
ff0e:ffff:1234:abcd:1234:ffff:1234:aaaa 3ffe::1
Uptime 02:00 Expires 02:30 Assert 01:00 Flags SR
in-coming : Multi1 upstream: This Router
downstream: Multi2 uptime 02:30 expires 00:40
ff0e::1 3ffe::2
Uptime 02:00 Expires 02:30 Assert 01:00 Flags SR
in-coming : Multi1 upstream: fe80::1200:87ff:fe10:1234
downstream: Multi2 uptime 02:30 expires 00:40
downstream: Multi3 uptime 02:30 expires 00:41