To verify the
configuration parameters for basic multicast forwarding, use the
show
ip
mroute command as shown 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,
V - RD & Vector, v - Vector
Outgoing interface flags: H - Hardware switched, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 230.1.1.1), 00:00:03/00:02:55, RP 30.1.1.1, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Bundle1, Forward/Sparse, 00:00:03/00:02:55, H
(*, 224.0.1.40), 00:12:02/00:02:19, RP 30.1.1.1, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Bundle1, Forward/Sparse, 00:12:02/00:02:19
Note |
During parallel express forwarding (PXF) reload, all
the dynamic multicast route (mroute) entries in the IP multicast routing table
are deleted. Only the IGMP static group entries are retained. After the PXF
reload, dynamic mroutes are populated in the IP multicast routing table only
when next IGMP join is received.
|
To verify the
multicast information for the specified virtual interface bundle, based on
IGMPv3, use the
show
cable
bundle
multicast
command as shown in the following example:
Router# show cable bundle 1 multicast
CableBundle Interface Source IP Multicast IP MAC Address
1 Bundle1.1 * 230.1.1.1 0100.5e00.0001
To verify the MAC
forwarding table for the specified virtual interface bundle, based on IGMPv3,
use the
show
cable
bundle
forwarding
command as shown in the following example:
Router# show cable bundle 1 forwarding
MAC address Interface Flags Location link sublink
00c0.5e01.0203 Cable8/0/0 3 64E5BF60 0 64E5BE00
00c0.5e01.0203 Cable7/0/0 3 64E5BE00 0 0
00c0.5e01.0101 Cable8/0/0 3 64E5BEE0 0 64E5BE40
To verify the multicast routing table in the PXF
processor for a specified group, use the
show
pxf
cpu
mroute
command as shown in the following example:
Note |
The show pxf cpu command is supported only on Cisco
uBR10012 universal broadband routers.
|
Router# show pxf cpu mroute 0.0.0.0
Shadow G/SG[5624]: s: 0.0.0.0 g: 224.0.1.40 uses: 0 bytes 0 flags: [D ] LNJ
Interface vcci offset rw_index mac_header
In : 0 0x000004
Shadow G/SG[3195]: s: 0.0.0.0 g: 234.5.6.7 uses: 0 bytes 0 flags: [5 ] NJ
Interface vcci offset rw_index mac_header
In : 0 0x000008
Out: Cable5/1/0 5 0x00002C 1B 00000026800001005E05060700010
Out: Cable6/1/1 9 0x000028 1A 00000026800001005E05060700010
Out: Cable6/0/0 6 0x000024 19 00000026800001005E05060700010
Out: Cable5/0/0 3 0x000020 18 00000026800001005E05060700010
Out: Cable7/0/0 A 0x00001C 17 00000026800001005E05060700010
Out: Cable7/1/1 C 0x000018 16 00000026800001005E05060700010
Out: Cable7/1/0 B 0x000014 15 00000026800001005E05060700010
Out: Cable6/1/0 8 0x000010 14 00000026800001005E05060700010
Out: Cable6/0/1 7 0x00000C 13 00000026800001005E05060700010
Out: Cable5/0/1 4 0x000008 12 00000026800001005E05060700010
To verify the multicast routes (mroutes) in the PXF
processor for a specified group, use the
show
pxf
cable
multicast
command as shown in the following example:
Router# show pxf cable multicast 0.0.0.0
MDB Flags: L - Local, F - Register flag, T - SPT-bit set, J - Join SPT
Z - Multicast Tunnel, N- No FastSwitching
OIF Flags: P - Prune Flag, A - Assert Flag
PXF multicast switching for vrf default is enabled.
Mdb at index= 3 hash= 0xE9F7:
next_mdb_idx: 0, fib_root: 0x0001, source_addr: 0.0.0.0, group_addr: 230.1.1.1
uses: 0, bytes: 0, vcci_in: 0, oif: 0x000002
rpf_failed: 0, drop_others: 0
rp_bit_mask:0x00, flags: [0xA0]
Ref Count=0, MDB Flags=0x0082, MDB FastFlags=0x10