Verifying IP Multicast on Routers Along the SPT
Enter these commands on routers along the SPT to verify IP multicast operations on routers along the SPT in
a PIM-SM or PIM-SSM network:
SUMMARY STEPS
1.
enable
2.
show ip mroute [group-address]
3.
show ip mroute active
DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode. Enter your password if prompted.enable
Step 1
Example:
Device> enable
Confirms the RPF neighbor towards the source for a particular
group or groups.
show ip mroute [group-address]
Example:
Device# show ip mroute 239.1.2.3
(*, 239.1.2.3), 00:17:56/00:03:02, RP
Step 2
172.16.0.1, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
GigabitEthernet0/0/0, Forward/Sparse-Dense,
00:17:56/00:03:02
(10.0.0.1, 239.1.2.3), 00:15:34/00:03:28, flags:
T
Incoming interface: Serial1/0, RPF nbr
172.31.200.1
Outgoing interface list:
GigabitEthernet0/0/0, Forward/Sparse-Dense,
00:15:34/00:03:02
Displays information about active multicast sources sending to
groups. The output of this command provides information about
the multicast packet rate for active sources.
show ip mroute active
Example:
Device# show ip mroute active
Active IP Multicast Sources - sending >= 4 kbps
Step 3
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)
OL-32598-01 173
Configuring PIM
Verifying IP Multicast Operation in a PIM-SM or a PIM-SSM Network
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