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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 41 IPv4 Multicast
Configuring IPv4 Multicast
224.0.1.40 Vlan16 04:17:35 00:02:58 16.1.1.3
224.0.1.40 Vlan23 05:08:03 00:02:54 23.1.1.1
To display the contents of the IP multicast routing table, use the show command described in the
following example.
Router# show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report,
Z - Multicast Tunnel, z - MDT-data group sender,
Y - Joined MDT-data group, y - Sending to MDT-data group,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(9.1.1.1, 232.1.1.1), 00:00:03/00:02:57, flags: sTI
Incoming interface: Vlan16, RPF nbr 16.1.1.1
Outgoing interface list:
Vlan70, Forward/Sparse, 00:00:04/00:02:56
(5.1.1.1, 232.1.1.1), 00:00:04/00:02:56, flags: sTI
Incoming interface: Vlan16, RPF nbr 16.1.1.1
Outgoing interface list:
Vlan70, Forward/Sparse, 00:00:04/00:02:56
(*, 224.0.1.40), 00:00:12/00:02:47, RP 6.6.6.6, flags: SJCL
Incoming interface: Vlan16, RPF nbr 16.1.1.1
Outgoing interface list:
Vlan23, Forward/Sparse, 00:00:12/00:02:47
Verifying PIM SSM Mapping
Use the show commands listed below to verify the PIM SSM Mapping configuration.
To display information about SSM mapping, use the show command described in the following example.
Router# show ip igmp ssm-mapping
SSM Mapping : Enabled
DNS Lookup : Disabled
Cast domain : ssm-map.cisco.com
Name servers : 255.255.255.255
To display the sources that SSM mapping uses for a particular group, use the show command described
in the following example.
Router# show ip igmp ssm-mapping 232.1.1.1
Group address: 232.1.1.1