Cisco Catalyst 3850 series

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