Viewing the PIM next-hop table
The PIM next-hop table is also very useful for checking the various states, it can be used to quickly identify the states of multiple multicast streams
FGT-3 # get router info multicast pim sparse-mode next-hop Flags: N = New, R = RP, S = Source, U = Unreachable Destination Type Nexthop Nexthop Nexthop Metric Pref Refcnt Num Addr Ifindex
10.166.0.11 ..S. 1 10.132.0.156 9 21 110 3
192.168.1.1 .R.. 1 10.132.0.156 9 111 110 2
Viewing the PIM multicast forwarding table
Also you can check the multicast forwarding table showing the ingress and egress ports of the multicast stream.
FGT-3 # get router info multicast table
IP Multicast Routing Table
Flags: I – Immediate Stat, T – Timed Stat, F – Forwarder installed
Timers: Uptime/Stat Expiry
Interface State: Interface (TTL threshold)
(10.166.0.11, 239.255.255.1), uptime 04:02:55, stat expires 00:02:25
Owner PIM-SM, Flags: TF Incoming interface: port2
Outgoing interface list:
port3 (TTL threshold 1)
Viewing the kernel forwarding table
Also the kernel forwarding table can be verified, however this should give similar information to the above command:
FGT-3 # diag ip multicast mroute
grp=239.255.255.1 src=10.166.0.11 intf=9 flags=(0x10000000)[ ] status=resolved last_assert=2615136 bytes=1192116 pkt=14538 wrong_if=0 num_ifs=1 index(ttl)=[6(1),]
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