cwtang
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Cisco 4506E IOS-XE Multicast PIM
I am trying to setup a Cisco 4506E-Sup7E switch for PIM spare-dense mode. I have enabled ip pim on the interfaces/vlan; however I dont seems to be able to join the multicast group from the client.
When I try to perform a mtrace to the RP/multicast source; I seems to be seeing none [default] on the switch which I dont understand as multicasting routing and PIM has been enabled on the interface. Port 3/1 is the uplink connecting to the network.
interface GigabitEthernet3/1
no switchport
ip address 172.21.73.4 255.255.255.240
no ip redirects
no ip unreachables
no ip proxy-arp
ip pim sparse-dense-mode
I have attached the output for reference:
switch#mtrace 172.31.122.254
Type escape sequence to abort.
Mtrace from 172.31.122.254 to 172.21.73.4 via RPF
From source (?) to destination (?)
Querying full reverse path...
0 172.21.73.4
-1 172.21.73.4 None [default]
-2 172.21.73.1 PIM [172.31.122.254/32]
-3 172.30.5.21 PIM [172.31.122.0/24]
-4 172.30.122.193 PIM [172.31.122.0/24]
-5 172.31.122.254
switch#sh ip rpf xxx.xxx.xxx.xxx
RPF information for ? (xxx.xxx.xxx.xxx)
RPF interface: GigabitEthernet3/1
RPF neighbor: ? (172.21.73.1)
RPF route/mask: 0.0.0.0/0
RPF type: unicast (ospf 1)
Doing distance-preferred lookups across tables
RPF topology: ipv4 multicast base, originated from ipv4 unicast base
switch#sh ip pim autorp
AutoRP Information:
AutoRP is enabled.
RP Discovery packet MTU is 0.
224.0.1.40 is joined on GigabitEthernet3/1.
AutoRP groups over sparse mode interface is enabled
PIM AutoRP Statistics: Sent/Received
RP Announce: 0/0, RP Discovery: 0/102293
switch#sh ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
172.21.73.1 GigabitEthernet3/1 1w4d/00:01:38 v2 1 / S P G
172.21.20.253 Vlan20 09:51:35/00:01:33 v2 1 / DR S P G
172.21.21.253 Vlan21 09:51:35/00:01:44 v2 1 / DR S P G
172.17.22.253 Vlan22 09:51:35/00:01:37 v2 1 / DR S P G
switch#sh ip pim rp
Group: 239.255.255.250, RP: 172.31.122.254, v2, uptime 1w4d, expires 00:02:38
Group: 224.69.252.1, RP: 172.31.122.254, v2, uptime 1w4d, expires 00:02:38
Group: 224.0.1.60, RP: 172.31.122.254, v2, uptime 1w4d, expires 00:02:38
switch#sh 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
(*, 239.255.255.250), 1w5d/00:02:45, RP 172.31.122.254, flags: SP
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list: Null
(*, 224.69.252.1), 00:00:03/00:02:56, RP 172.31.122.254, flags: SP
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list: Null
(*, 224.0.1.60), 1w5d/00:02:09, RP 172.31.122.254, flags: SP
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list: Null
(*, 224.0.1.39), 00:19:25/stopped, RP 0.0.0.0, flags: D
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:25/stopped
Vlan21, Forward/Sparse-Dense, 00:19:25/stopped
Vlan22, Forward/Sparse-Dense, 00:19:25/stopped
GigabitEthernet3/1, Forward/Sparse-Dense, 00:19:25/stopped
(172.31.122.254, 224.0.1.39), 00:19:13/00:01:35, flags: T
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:13/stopped
Vlan21, Forward/Sparse-Dense, 00:19:13/stopped
Vlan22, Forward/Sparse-Dense, 00:19:13/stopped
(172.31.111.254, 224.0.1.39), 00:19:25/00:01:23, flags: T
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:25/stopped
Vlan21, Forward/Sparse-Dense, 00:19:25/stopped
Vlan22, Forward/Sparse-Dense, 00:19:25/stopped
(*, 224.0.1.40), 00:19:58/stopped, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:58/stopped
Vlan21, Forward/Sparse-Dense, 00:19:58/stopped
Vlan22, Forward/Sparse-Dense, 00:19:58/stopped
GigabitEthernet3/1, Forward/Sparse-Dense, 00:19:58/stopped
(172.31.111.254, 224.0.1.40), 00:19:13/00:02:33, flags: LT
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:13/stopped
Vlan21, Forward/Sparse-Dense, 00:19:13/stopped
Vlan22, Forward/Sparse-Dense, 00:19:13/stopped
(172.31.122.254, 224.0.1.40), 00:19:14/00:02:40, flags: LT
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:14/stopped
Vlan21, Forward/Sparse-Dense, 00:19:14/stopped
Vlan22, Forward/Sparse-Dense, 00:19:14/stopped
I am trying to join the group 224.69.252.1. Not too sure what may be the reason for the failure of the multicast.
Any help is appreciated.
Thanks.
When I try to perform a mtrace to the RP/multicast source; I seems to be seeing none [default] on the switch which I dont understand as multicasting routing and PIM has been enabled on the interface. Port 3/1 is the uplink connecting to the network.
interface GigabitEthernet3/1
no switchport
ip address 172.21.73.4 255.255.255.240
no ip redirects
no ip unreachables
no ip proxy-arp
ip pim sparse-dense-mode
I have attached the output for reference:
switch#mtrace 172.31.122.254
Type escape sequence to abort.
Mtrace from 172.31.122.254 to 172.21.73.4 via RPF
From source (?) to destination (?)
Querying full reverse path...
0 172.21.73.4
-1 172.21.73.4 None [default]
-2 172.21.73.1 PIM [172.31.122.254/32]
-3 172.30.5.21 PIM [172.31.122.0/24]
-4 172.30.122.193 PIM [172.31.122.0/24]
-5 172.31.122.254
switch#sh ip rpf xxx.xxx.xxx.xxx
RPF information for ? (xxx.xxx.xxx.xxx)
RPF interface: GigabitEthernet3/1
RPF neighbor: ? (172.21.73.1)
RPF route/mask: 0.0.0.0/0
RPF type: unicast (ospf 1)
Doing distance-preferred lookups across tables
RPF topology: ipv4 multicast base, originated from ipv4 unicast base
switch#sh ip pim autorp
AutoRP Information:
AutoRP is enabled.
RP Discovery packet MTU is 0.
224.0.1.40 is joined on GigabitEthernet3/1.
AutoRP groups over sparse mode interface is enabled
PIM AutoRP Statistics: Sent/Received
RP Announce: 0/0, RP Discovery: 0/102293
switch#sh ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
172.21.73.1 GigabitEthernet3/1 1w4d/00:01:38 v2 1 / S P G
172.21.20.253 Vlan20 09:51:35/00:01:33 v2 1 / DR S P G
172.21.21.253 Vlan21 09:51:35/00:01:44 v2 1 / DR S P G
172.17.22.253 Vlan22 09:51:35/00:01:37 v2 1 / DR S P G
switch#sh ip pim rp
Group: 239.255.255.250, RP: 172.31.122.254, v2, uptime 1w4d, expires 00:02:38
Group: 224.69.252.1, RP: 172.31.122.254, v2, uptime 1w4d, expires 00:02:38
Group: 224.0.1.60, RP: 172.31.122.254, v2, uptime 1w4d, expires 00:02:38
switch#sh 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
(*, 239.255.255.250), 1w5d/00:02:45, RP 172.31.122.254, flags: SP
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list: Null
(*, 224.69.252.1), 00:00:03/00:02:56, RP 172.31.122.254, flags: SP
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list: Null
(*, 224.0.1.60), 1w5d/00:02:09, RP 172.31.122.254, flags: SP
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list: Null
(*, 224.0.1.39), 00:19:25/stopped, RP 0.0.0.0, flags: D
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:25/stopped
Vlan21, Forward/Sparse-Dense, 00:19:25/stopped
Vlan22, Forward/Sparse-Dense, 00:19:25/stopped
GigabitEthernet3/1, Forward/Sparse-Dense, 00:19:25/stopped
(172.31.122.254, 224.0.1.39), 00:19:13/00:01:35, flags: T
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:13/stopped
Vlan21, Forward/Sparse-Dense, 00:19:13/stopped
Vlan22, Forward/Sparse-Dense, 00:19:13/stopped
(172.31.111.254, 224.0.1.39), 00:19:25/00:01:23, flags: T
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:25/stopped
Vlan21, Forward/Sparse-Dense, 00:19:25/stopped
Vlan22, Forward/Sparse-Dense, 00:19:25/stopped
(*, 224.0.1.40), 00:19:58/stopped, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:58/stopped
Vlan21, Forward/Sparse-Dense, 00:19:58/stopped
Vlan22, Forward/Sparse-Dense, 00:19:58/stopped
GigabitEthernet3/1, Forward/Sparse-Dense, 00:19:58/stopped
(172.31.111.254, 224.0.1.40), 00:19:13/00:02:33, flags: LT
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:13/stopped
Vlan21, Forward/Sparse-Dense, 00:19:13/stopped
Vlan22, Forward/Sparse-Dense, 00:19:13/stopped
(172.31.122.254, 224.0.1.40), 00:19:14/00:02:40, flags: LT
Incoming interface: GigabitEthernet3/1, RPF nbr 172.21.73.1
Outgoing interface list:
Vlan20, Forward/Sparse-Dense, 00:19:14/stopped
Vlan21, Forward/Sparse-Dense, 00:19:14/stopped
Vlan22, Forward/Sparse-Dense, 00:19:14/stopped
I am trying to join the group 224.69.252.1. Not too sure what may be the reason for the failure of the multicast.
Any help is appreciated.
Thanks.
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