01-16-2013 07:05 AM
I am try to get a vpn multicast traffic across the MPLS cloud so sources/clients in each region have connectivity. The MSDP peer between the two region is "up" but mroute is showing NULL interface as follows:
(10.1.1.31, 224.28.28.28), 00:01:23/00:01:36, flags: PA
Incoming interface: Ethernet0/2, RPF nbr 10.10.2.2
Outgoing interface list: Null
So we need to enable multicast routing over the MPLS??
Some config is as follows:
one side:
R7#sh run | i multi|rp|bsr|pim
ip multicast-routing vrf site-b
multilink bundle-name authenticated
ip pim sparse-dense-mode
ip pim sparse-dense-mode
ip pim vrf site-b send-rp-announce Loopback100 scope 16
ip pim vrf site-b send-rp-discovery Loopback100 scope 16
R7#sh run in lo100
Building configuration...
Current configuration : 149 bytes
!
interface Loopback100
ip vrf forwarding site-b
ip address 172.1.1.7 255.255.255.255
ip pim sparse-dense-mode
ip igmp join-group 224.1.1.1
end
!
interface Ethernet0/1
ip address 172.10.12.37 255.255.255.252
mpls ip
end
The other side
MSDP is not configured on PE. Infect its on CE but i will paste the PE and CE config:
CE;
ip pim bsr-candidate Loopback0 0
ip pim rp-candidate Loopback0
R23#sh run int e0/0
Building configuration...
Current configuration : 221 bytes
!
interface Ethernet0/0
ip address 10.10.1.18 255.255.255.252
ip pim sparse-mode
PE:
R8#sh run | i multi|rp|bsr|pim
ip multicast-routing vrf site-b
multilink bundle-name authenticated
ip pim sparse-mode
R8#sh run int e0/2
Building configuration...
Current configuration : 247 bytes
!
interface Ethernet0/2
ip vrf forwarding site-b
ip address 10.10.1.17 255.255.255.252
ip pim sparse-mode
=======================================================
01-17-2013 02:32 AM
Hi Rajesh,
Do you have the MDT tunnel between PEs up? and do you have PIM neighborship over the MDT tunnel?.
You need MDT tunnel and PIM neighborship (over MDT tunnel) between PE devices to propagate the cusotmer control plane packets (like PIM joins for c-s,c-g) to build the tree.
Below is a link for MVPN configuration guide. You can use it as a start,
http://www.cisco.com/en/US/docs/ios/ipmulti/configuration/guide/imc_cfg_mc_vpn.pdf
Regards,
Nagendra
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