Example for Configuring an Intra-AS NG MVPN to Carry Multicast Traffic over an mLDP P2MP LSP

This section provides an example for configuring an intra-AS NG MVPN to carry multicast traffic over an mLDP P2MP LSP.

Networking Requirements

A next-generation multicast virtual private network (NG MVPN) is deployed on the service provider's backbone network to solve multicast service issues related to traffic congestion, transmission reliability, and data security. On the intra-AS NG MVPN network shown in Figure 1, MPLS LDP LSPs have been deployed to carry BGP MPLS/IP VPN services. The service provider wants to provide MVPN services for users based on the existing network. To meet this requirement, configure an intra-AS NG MVPN to carry multicast traffic over a Multipoint extensions for LDP (mLDP) point-to-multipoint (P2MP) LSP.

Figure 1 Intra-AS NG MVPN networking

Interfaces 1, 2, and 3 in this example represent GE 0/1/0, GE 0/1/1, and GE 0/1/2, respectively.

Configuration Roadmap

The configuration roadmap is as follows:

Configure BGP/MPLS IP VPN and ensure that unicast VPN services are properly transmitted. In this example, configure CE1 to communicate with CE2 and CE3, but do not allow CE2 and CE3 to communicate.
Enable mLDP globally on Provider Edges (PEs) so that the PEs can use mLDP to establish a P2MP LSP.
Establish BGP MVPN peer relationships between the PEs so that the PEs can use BGP to exchange BGP A-D and BGP C-multicast routes.
Configure PE1 to use mLDP to establish an inclusive-provider multicast service interface (I-PMSI) tunnel.
Configure PE1 to use mLDP to establish a selective-provider multicast service interface (S-PMSI) tunnel so that an mLDP P2MP LSP can be triggered.
Configure PIM on the PE interfaces bound to VPN instances and on the CE interfaces connecting to PEs to allow a VPN multicast routing table to be established to guide multicast traffic forwarding.
Configure IGMP on the interfaces connecting a multicast device to a user network segment to allow the device to manage multicast group members on the network segment.

Data Preparation

To complete the configuration, you need the following data:

Public network OSPF process ID: 1; area ID: 0 OSPF multi-instance process ID: 2; area ID: 0

VPN instance name on PE1, PE2, and PE3: VPNA

**Table 1** Data preparation
Device Name	IP Address of Loopback 1	MPLS LSR ID	MVPN ID	RD	VPN-Target	AS Number
CE1	1.1.1.1	-	-	-	-	-
PE1	2.2.2.2	2.2.2.2	2.2.2.2	200:1	3:3 4:4	AS100
PE2	3.3.3.3	3.3.3.3	3.3.3.3	300:1	3:3	AS100
PE3	4.4.4.4	4.4.4.4	4.4.4.4	400:1	4:4	AS100
CE2	5.5.5.5	-	-	-	-	-
CE3	6.6.6.6	-	-	-	-	-

Procedure

Configure BGP/MPLS IP VPN.

Configure the VPN backbone network and the IP address of each interface in each VPN site.
Assign an IP address to each interface according to Figure 1. For configuration details, see Configuration Files in this section.
Configure an IGP to interconnect devices on the BGP/MPLS IP VPN backbone network.
OSPF is used in this example. For configuration details, see Configuration Files in this section.

Configure basic MPLS functions and enable MPLS LDP to establish LDP LSPs on the MPLS backbone network.

# Configure PE1.

[~PE1] mpls lsr-id 2.2.2.2
[*PE1] mpls
[*PE1-mpls] quit
[*PE1] mpls ldp
[*PE1-mpls-ldp] quit
[*PE1] interface gigabitethernet0/1/0
[*PE1-GigabitEthernet0/1/0] mpls
[*PE1-GigabitEthernet0/1/0] mpls ldp
[*PE1-GigabitEthernet0/1/0] quit
[*PE1] interface gigabitethernet0/1/2
[*PE1-GigabitEthernet0/1/2] mpls
[*PE1-GigabitEthernet0/1/2] mpls ldp
[*PE1-GigabitEthernet0/1/2] quit
[*PE1] commit

# Configure PE2.

[~PE2] mpls lsr-id 3.3.3.3
[*PE2] mpls
[*PE2-mpls] quit
[*PE2] mpls ldp
[*PE2-mpls-ldp] quit
[*PE2] interface gigabitethernet0/1/2
[*PE2-GigabitEthernet0/1/2] mpls
[*PE2-GigabitEthernet0/1/2] mpls ldp
[*PE2-GigabitEthernet0/1/2] quit
[*PE2] commit

# Configure PE3.

[~PE3] mpls lsr-id 4.4.4.4
[*PE3] mpls
[*PE3-mpls] quit
[*PE3] mpls ldp
[*PE3-mpls-ldp] quit
[*PE3] interface gigabitethernet0/1/0
[*PE3-GigabitEthernet0/1/0] mpls
[*PE3-GigabitEthernet0/1/0] mpls ldp
[*PE3-GigabitEthernet0/1/0] quit
[*PE3] commit

Establish a Multiprotocol Internal Border Gateway Protocol (MP-IBGP) peer relationship between PEs.

# Configure PE1.

[~PE1] bgp 100
[*PE1-bgp] peer 3.3.3.3 as-number 100
[*PE1-bgp] peer 3.3.3.3 connect-interface LoopBack1
[*PE1-bgp] peer 4.4.4.4 as-number 100
[*PE1-bgp] peer 4.4.4.4 connect-interface LoopBack1
[*PE1-bgp] ipv4-family vpnv4
[*PE1-bgp-af-vpnv4] peer 3.3.3.3 enable
[*PE1-bgp-af-vpnv4] peer 4.4.4.4 enable
[*PE1-bgp-af-vpnv4] quit
[*PE1-bgp] quit
[*PE1] commit

# Configure PE2.

[~PE2] bgp 100
[*PE2-bgp] peer 2.2.2.2 as-number 100
[*PE2-bgp] peer 2.2.2.2 connect-interface LoopBack1
[*PE2-bgp] ipv4-family vpnv4
[*PE2-bgp-af-vpnv4] peer 2.2.2.2 enable
[*PE2-bgp-af-vpnv4] quit
[*PE2-bgp] quit
[*PE2] commit

# Configure PE3.

[~PE3] bgp 100
[*PE3-bgp] peer 2.2.2.2 as-number 100
[*PE3-bgp] peer 2.2.2.2 connect-interface LoopBack1
[*PE3-bgp] ipv4-family vpnv4
[*PE3-bgp-af-vpnv4] peer 2.2.2.2 enable
[*PE3-bgp-af-vpnv4] quit
[*PE3-bgp] quit
[*PE3] commit

Configure a VPN instance on each PE and bind the VPN instance on each PE to its interface connecting to a CE.

# Configure PE1.

[~PE1] ip vpn-instance VPNA
[*PE1-vpn-instance-VPNA] ipv4-family
[*PE1-vpn-instance-VPNA-af-ipv4] route-distinguisher 200:1
[*PE1-vpn-instance-VPNA-af-ipv4] vpn-target 3:3 4:4
[*PE1-vpn-instance-VPNA-af-ipv4] quit
[*PE1-vpn-instance-VPNA] quit
[*PE1] interface gigabitethernet0/1/1
[*PE1-GigabitEthernet0/1/1] ip binding vpn-instance VPNA
[*PE1-GigabitEthernet0/1/1] ip address 192.168.1.2 24
[*PE1-GigabitEthernet0/1/1] quit
[*PE1] commit

# Configure PE2.

[~PE2] ip vpn-instance VPNA
[*PE2-vpn-instance-VPNA] ipv4-family
[*PE2-vpn-instance-VPNA-af-ipv4] route-distinguisher 300:1
[*PE2-vpn-instance-VPNA-af-ipv4] vpn-target 3:3
[*PE2-vpn-instance-VPNA-af-ipv4] quit
[*PE2-vpn-instance-VPNA] quit
[*PE2] interface gigabitethernet0/1/1
[*PE2-GigabitEthernet0/1/1] ip binding vpn-instance VPNA
[*PE2-GigabitEthernet0/1/1] ip address 192.168.2.1 24
[*PE2-GigabitEthernet0/1/1] quit
[*PE2] commit

# Configure PE3.

[~PE3] ip vpn-instance VPNA
[*PE3-vpn-instance-VPNA] ipv4-family
[*PE3-vpn-instance-VPNA-af-ipv4] route-distinguisher 400:1
[*PE3-vpn-instance-VPNA-af-ipv4] vpn-target 4:4
[*PE3-vpn-instance-VPNA-af-ipv4] quit
[*PE3-vpn-instance-VPNA] quit
[*PE3] interface gigabitethernet0/1/1
[*PE3-GigabitEthernet0/1/1] ip binding vpn-instance VPNA
[*PE3-GigabitEthernet0/1/1] ip address 192.168.3.1 24
[*PE3-GigabitEthernet0/1/1] quit
[*PE3] commit

Configure OSPF multi-instance on each PE to import VPN routes.

# Configure PE1.

[~PE1] ospf 2 vpn-instance VPNA
[*PE1-ospf-2] import-route bgp
[*PE1-ospf-2] area 0
[*PE1-ospf-2-area-0.0.0.0] network 192.168.1.0 0.0.0.255
[*PE1-ospf-2-area-0.0.0.0] quit
[*PE1-ospf-2] quit
[*PE1] bgp 100
[*PE1-bgp] ipv4-family vpn-instance VPNA
[*PE1-bgp-VPNA] import-route ospf 2
[*PE1-bgp-VPNA] quit
[*PE1-bgp] quit
[*PE1] commit

# Configure PE2.

[~PE2] ospf 2 vpn-instance VPNA
[*PE2-ospf-2] import-route bgp
[*PE2-ospf-2] area 0
[*PE2-ospf-2-area-0.0.0.0] network 192.168.2.0 0.0.0.255
[*PE2-ospf-2-area-0.0.0.0] quit
[*PE2-ospf-2] quit
[*PE2] bgp 100
[*PE2-bgp] ipv4-family vpn-instance VPNA
[*PE2-bgp-VPNA] import-route ospf 2
[*PE2-bgp-VPNA] quit
[*PE2-bgp] quit
[*PE2] commit

# Configure PE3.

[~PE3] ospf 2 vpn-instance VPNA
[*PE3-ospf-2] import-route bgp
[*PE3-ospf-2] area 0
[*PE3-ospf-2-area-0.0.0.0] network 192.168.3.0 0.0.0.255
[*PE3-ospf-2-area-0.0.0.0] quit
[*PE3-ospf-2] quit
[*PE3] bgp 100
[*PE3-bgp] ipv4-family vpn-instance VPNA
[*PE3-bgp-VPNA] import-route ospf 2
[*PE3-bgp-VPNA] quit
[*PE3-bgp] quit
[*PE3] commit

# Configure OSPF on each CE.

# Configure CE1.

[~CE1] ospf 2
[*CE1-ospf-2] area 0
[*CE1-ospf-2-area-0.0.0.0] network 192.168.1.0 0.0.0.255
[*CE1-ospf-2-area-0.0.0.0] network 10.1.3.0 0.0.0.255
[*CE1-ospf-2-area-0.0.0.0] network 1.1.1.1 0.0.0.0
[*CE1-ospf-2-area-0.0.0.0] quit
[*CE1-ospf-2] quit
[*CE1] commit

# Configure CE2.

[~CE2] ospf 2
[*CE2-ospf-2] area 0
[*CE2-ospf-2-area-0.0.0.0] network 192.168.2.0 0.0.0.255
[*CE2-ospf-2-area-0.0.0.0] network 10.1.4.0 0.0.0.255
[*CE2-ospf-2-area-0.0.0.0] network 5.5.5.5 0.0.0.0
[*CE2-ospf-2-area-0.0.0.0] quit
[*CE2-ospf-2] quit
[*CE2] commit

# Configure CE3.

[~CE3] ospf 2
[*CE3-ospf-2] area 0
[*CE3-ospf-2-area-0.0.0.0] network 192.168.3.0 0.0.0.255
[*CE3-ospf-2-area-0.0.0.0] network 10.1.5.0 0.0.0.255
[*CE3-ospf-2-area-0.0.0.0] network 6.6.6.6 0.0.0.0
[*CE3-ospf-2-area-0.0.0.0] quit
[*CE3-ospf-2] quit
[*CE3] commit

After the configurations are complete, run the display ip routing-table command on CE2 and CE3. The command outputs show that CE2 and CE3 have routes to CE1. Run the ping command on CE2 and CE3 to ping CE1. The command outputs show the ping operations are successful. The following example uses the command output on CE3:

[~CE3] display ip routing-table
Route Flags: R - relay, D - download to fib, T - to vpn-instance, B - black hole route
------------------------------------------------------------------------------
Routing Table : _public_
         Destinations : 11       Routes : 11

Destination/Mask    Proto   Pre  Cost        Flags NextHop         Interface

        1.1.1.1/32  OSPF    10   3             D  192.168.3.1     GigabitEthernet0/1/0
        6.6.6.6/32  Direct  0    0             D  127.0.0.1       LoopBack1
       10.1.3.0/24  OSPF    10   4             D  192.168.3.1     GigabitEthernet0/1/0
      127.0.0.0/8   Direct  0    0             D  127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0             D  127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0             D  127.0.0.1       InLoopBack0
    192.168.1.0/24  OSPF    10   3             D  192.168.3.1     GigabitEthernet0/1/0
    192.168.3.0/24  Direct  0    0             D  192.168.3.2     GigabitEthernet0/1/0
    192.168.3.2/32  Direct  0    0             D  127.0.0.1       GigabitEthernet0/1/0
    192.168.3.3/32  Direct  0    0             D  127.0.0.1       GigabitEthernet0/1/0
255.255.255.255/32  Direct  0    0             D  127.0.0.1       InLoopBack0  
[~CE3] ping 1.1.1.1
  PING 1.1.1.1: 56  data bytes, press CTRL_C to break
    Reply from 1.1.1.1: bytes=56 Sequence=1 ttl=253 time=118 ms
    Reply from 1.1.1.1: bytes=56 Sequence=2 ttl=253 time=3 ms
    Reply from 1.1.1.1: bytes=56 Sequence=3 ttl=253 time=4 ms
    Reply from 1.1.1.1: bytes=56 Sequence=4 ttl=253 time=3 ms
    Reply from 1.1.1.1: bytes=56 Sequence=5 ttl=253 time=3 ms

  --- 1.1.1.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 3/26/118 ms

Enable mLDP globally.

# Configure PE1.

[~PE1] mpls ldp
[*PE1-mpls-ldp] mldp p2mp
[*PE1-mpls-ldp] commit
[~PE1-mpls-ldp] quit

# Configure PE2.

[~PE2] mpls ldp
[*PE2-mpls-ldp] mldp p2mp
[*PE2-mpls-ldp] commit
[~PE2-mpls-ldp] quit

# Configure PE3.

[~PE3] mpls ldp
[*PE3-mpls-ldp] mldp p2mp
[*PE3-mpls-ldp] commit
[~PE3-mpls-ldp] quit

Establish a BGP MVPN peer relationship between the PEs.

# Configure PE1.

[~PE1] bgp 100
[*PE1-bgp] ipv4-family mvpn
[*PE1-bgp-af-mvpn] peer 3.3.3.3 enable
[*PE1-bgp-af-mvpn] peer 4.4.4.4 enable
[*PE1-bgp-af-mvpn] commit
[~PE1-bgp-af-mvpn] quit
[~PE1-bgp] quit

# Configure PE2.

[~PE2] bgp 100
[*PE2-bgp] ipv4-family mvpn
[*PE2-bgp-af-mvpn] peer 2.2.2.2 enable
[*PE2-bgp-af-mvpn] commit
[~PE2-bgp-af-mvpn] quit
[~PE2-bgp] quit

# Configure PE3.

[~PE3] bgp 100
[*PE3-bgp] ipv4-family mvpn
[*PE3-bgp-af-mvpn] peer 2.2.2.2 enable
[*PE3-bgp-af-mvpn] commit
[~PE3-bgp-af-mvpn] quit
[~PE3-bgp] quit

After the configurations are complete, run the display bgp mvpn all peer command on the PEs. The command output shows that PE1 has established a BGP MVPN peer relationship with PE2 and PE3. The following example uses the command output on PE1:

[~PE1] display bgp mvpn all peer
 BGP local router ID : 10.1.2.1
 Local AS number : 100
 Total number of peers : 2                 Peers in established state : 2

  Peer            V          AS  MsgRcvd  MsgSent  OutQ  Up/Down       State  PrefRcv
  3.3.3.3         4         100       43       42     0 00:29:28 Established        2
  4.4.4.4         4         100       32       35     0 00:21:59 Established        1

Configure each PE to use mLDP to establish an S-PMSI tunnel.

# Configure PE1.

[~PE1] multicast mvpn 2.2.2.2
[*PE1] ip vpn-instance VPNA
[*PE1-vpn-instance-VPNA] ipv4-family
[*PE1-vpn-instance-VPNA-af-ipv4] multicast routing-enable
[*PE1-vpn-instance-VPNA-af-ipv4] mvpn
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn] sender-enable
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn] c-multicast signaling bgp
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn] rpt-spt mode
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn] ipmsi-tunnel
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn-ipmsi] mldp
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn-ipmsi] quit
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn] spmsi-tunnel
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn-spmsi] group 225.0.0.0 255.255.255.0 mldp limit 1
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn-spmsi] quit
[*PE1-vpn-instance-VPNA-af-ipv4-mvpn] quit
[*PE1-vpn-instance-VPNA-af-ipv4] quit
[*PE1-vpn-instance-VPNA] quit
[*PE1] commit

# Configure PE2.

[~PE2] multicast mvpn 3.3.3.3
[*PE2] ip vpn-instance VPNA
[*PE2-vpn-instance-VPNA] ipv4-family
[*PE2-vpn-instance-VPNA-af-ipv4] multicast routing-enable
[*PE2-vpn-instance-VPNA-af-ipv4] mvpn
[*PE2-vpn-instance-VPNA-af-ipv4-mvpn] c-multicast signaling bgp
[*PE2-vpn-instance-VPNA-af-ipv4-mvpn] rpt-spt mode
[*PE2-vpn-instance-VPNA-af-ipv4-mvpn] quit
[*PE2-vpn-instance-VPNA-af-ipv4] quit
[*PE2-vpn-instance-VPNA] quit
[*PE2] commit

# Configure PE3.

[~PE3] multicast mvpn 4.4.4.4
[*PE3] ip vpn-instance VPNA
[*PE3-vpn-instance-VPNA] ipv4-family
[*PE3-vpn-instance-VPNA-af-ipv4] multicast routing-enable
[*PE3-vpn-instance-VPNA-af-ipv4] mvpn
[*PE3-vpn-instance-VPNA-af-ipv4-mvpn] c-multicast signaling bgp
[*PE3-vpn-instance-VPNA-af-ipv4-mvpn] rpt-spt mode
[*PE3-vpn-instance-VPNA-af-ipv4-mvpn] quit
[*PE3-vpn-instance-VPNA-af-ipv4] quit
[*PE3-vpn-instance-VPNA] quit
[*PE3] commit

After completing the configuration, run the display mvpn vpn-instance ipmsi command on the PEs to check I-PMSI tunnel information. The following example uses the command output on PE1:

[~PE1] display mvpn vpn-instance VPNA ipmsi
MVPN local I-PMSI information for VPN-Instance: VPNA
Tunnel type: mLDP P2MP LSP
Tunnel state: Up 
Root-ip: 2.2.2.2
Opaque value: 0x01000400008021
Root: 2.2.2.2 (local)
Leaf:
  1: 3.3.3.3
  2: 4.4.4.4

The command output shows that an mLDP P2MP LSP has been established, with PE1 as the root node and PE2 and PE3 as leaf nodes.

Configure PIM.

# Configure PE1.

[*PE1] interface gigabitethernet0/1/1
[*PE1-GigabitEthernet0/1/1] pim sm
[*PE1-GigabitEthernet0/1/1] quit
[*PE1] commit

# Configure CE1.

[~CE1] multicast routing-enable
[*CE1] interface gigabitethernet0/1/0
[*CE1-GigabitEthernet0/1/0] pim sm
[*CE1-GigabitEthernet0/1/0] quit
[*CE1] interface gigabitethernet0/1/1
[*CE1-GigabitEthernet0/1/1] pim sm
[*CE1-GigabitEthernet0/1/1] quit
[*CE1] commit

# Configure PE2.

[*PE2] interface gigabitethernet0/1/1
[*PE2-GigabitEthernet0/1/1] pim sm
[*PE2-GigabitEthernet0/1/1] quit
[*PE2] commit

# Configure CE2.

[~CE2] multicast routing-enable
[*CE2] interface gigabitethernet0/1/0
[*CE2-GigabitEthernet0/1/0] pim sm
[*CE2-GigabitEthernet0/1/0] quit
[*CE2] interface gigabitethernet0/1/1
[*CE2-GigabitEthernet0/1/1] pim sm
[*CE2-GigabitEthernet0/1/1] quit
[*CE2] commit

# Configure PE3.

[*PE3] interface gigabitethernet0/1/1
[*PE3-GigabitEthernet0/1/1] pim sm
[*PE3-GigabitEthernet0/1/1] quit
[*PE3] commit

# Configure CE3.

[~CE3] multicast routing-enable
[*CE3] interface gigabitethernet0/1/0
[*CE3-GigabitEthernet0/1/0] pim sm
[*CE3-GigabitEthernet0/1/0] quit
[*CE3] interface gigabitethernet0/1/1
[*CE3-GigabitEthernet0/1/1] pim sm
[*CE3-GigabitEthernet0/1/1] quit
[*CE3] commit

Configure IGMP and IGMP version 3.

# Configure CE2.

[~CE2] interface gigabitethernet0/1/1
[*CE2-GigabitEthernet0/1/1] pim sm
[*CE2-GigabitEthernet0/1/1] igmp enable
[*CE2-GigabitEthernet0/1/1] igmp version 3
[*CE2-GigabitEthernet0/1/1] commit
[~CE2-GigabitEthernet0/1/1] quit

# Configure CE3.

[~CE3] interface gigabitethernet0/1/1
[*CE3-GigabitEthernet0/1/1] pim sm
[*CE3-GigabitEthernet0/1/1] igmp enable
[*CE3-GigabitEthernet0/1/1] igmp version 3
[*CE3-GigabitEthernet0/1/1] commit
[~CE3-GigabitEthernet0/1/1] quit

Configure a static RP.

# Configure CE1.

[~CE1] pim
[*CE1-pim] static-rp 1.1.1.1
[*CE1-pim] commit
[~CE1-pim] quit

# Configure CE2.

[~CE2] pim
[*CE2-pim] static-rp 1.1.1.1
[*CE2-pim] commit
[~CE2-pim] quit

# Configure CE3.

[~CE3] pim
[*CE3-pim] static-rp 1.1.1.1
[*CE3-pim] commit
[~CE3-pim] quit

# Configure PE1.

[~PE1] pim vpn-instance VPNA
[*PE1-pim-VPNA] static-rp 1.1.1.1
[*PE1-pim-VPNA] commit
[~PE1-pim-VPNA] quit

# Configure PE2.

[~PE2] pim vpn-instance VPNA
[*PE2-pim-VPNA] static-rp 1.1.1.1
[*PE2-pim-VPNA] commit
[~PE2-pim-VPNA] quit

# Configure PE3.

[~PE3] pim vpn-instance VPNA
[*PE3-pim-VPNA] static-rp 1.1.1.1
[*PE3-pim-VPNA] commit
[~PE3-pim-VPNA] quit

Verify the configuration.

After the configurations are complete, NG MVPN functions have been configured. After a user goes online through CE2 or CE3, CE1 can forward multicast data traffic to the user through the BGP/MPLS IP VPN. Configure users on CE2 or CE3 to send IGMPv3 Report messages and the multicast source 10.1.3.1 to send multicast data. Then, check multicast routing entries to verify whether the NG MVPN is configured successfully.

Run the display pim routing-table command on CE2, CE3, and CE1 to check the PIM routing table. Run the display pim vpn-instance routing-table command on PE2, PE3, and PE1 to check the PIM routing table of the VPN instance.

[~CE2] display pim routing-table
 VPN-Instance: public net
 Total 0 (*, G) entry; 1 (S, G) entry

 (10.1.3.1, 225.1.1.1)
     RP:1.1.1.1
     Protocol: pim-sm, Flag: SPT SG_RCVR ACT
     UpTime: 00:54:11
     Upstream interface: GigabitEthernet0/1/0, Refresh time: 00:54:11
         Upstream neighbor: 192.168.2.1
         RPF prime neighbor: 192.168.2.1
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1
             Protocol: igmp, UpTime: 00:54:11, Expires: -
[~CE3] display pim routing-table
 VPN-Instance: public net
 Total 0 (*, G) entry; 1 (S, G) entry

 (10.1.3.1, 226.1.1.1)
     RP:1.1.1.1
     Protocol: pim-sm, Flag: SPT SG_RCVR ACT
     UpTime: 00:01:57
     Upstream interface: GigabitEthernet0/1/0, Refresh time: 00:01:57
         Upstream neighbor: 192.168.3.1
         RPF prime neighbor: 192.168.3.1
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1
             Protocol: igmp, UpTime: 00:01:57, Expires: - 
[~PE2] display pim vpn-instance VPNA routing-table
 VPN-Instance: VPNA
 Total 0 (*, G) entry; 1 (S, G) entry

 (10.1.3.1, 225.1.1.1)
     RP:1.1.1.1
     Protocol: pim-sm, Flag: SPT ACT
     UpTime: 00:48:18
     Upstream interface: through-BGP, Refresh time: 00:48:18
         Upstream neighbor: 2.2.2.2
         RPF prime neighbor: 2.2.2.2
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1
             Protocol: pim-sm, UpTime: 00:48:18, Expires: 00:03:12     
[~PE3] display pim vpn-instance VPNA routing-table
 VPN-Instance: VPNA
 Total 0 (*, G) entry; 1 (S, G) entry

 (10.1.3.1, 226.1.1.1)
     RP:1.1.1.1
     Protocol: pim-sm, Flag: SPT ACT
     UpTime: 00:02:06
     Upstream interface: through-BGP, Refresh time: 00:02:06
         Upstream neighbor: 2.2.2.2
         RPF prime neighbor: 2.2.2.2
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1
             Protocol: pim-sm, UpTime: 00:02:06, Expires: 00:03:26 
[~PE1] display pim vpn-instance VPNA routing-table
 VPN-Instance: VPNA
 Total 0 (*, G) entry; 2 (S, G) entries

 (10.1.3.1, 225.1.1.1)
     RP:1.1.1.1
     Protocol: pim-sm, Flag: SPT SG_RCVR ACT
     UpTime: 00:46:58
     Upstream interface: GigabitEthernet0/1/1, Refresh time: 00:46:58
         Upstream neighbor: 192.168.1.1
         RPF prime neighbor: 192.168.1.1
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: pseudo
             Protocol: BGP, UpTime: 00:46:58, Expires: -

 (10.1.3.1, 226.1.1.1)
     RP:1.1.1.1
     Protocol: pim-sm, Flag: SPT SG_RCVR ACT
     UpTime: 00:00:23
     Upstream interface: GigabitEthernet0/1/1, Refresh time: 00:00:23
         Upstream neighbor: 192.168.1.1
         RPF prime neighbor: 192.168.1.1
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: pseudo
             Protocol: BGP, UpTime: 00:00:26, Expires: - 
[~CE1] display pim routing-table
 VPN-Instance: public net
 Total 0 (*, G) entry; 2 (S, G) entries

 (10.1.3.1, 225.1.1.1)
     RP:1.1.1.1 (local)
     Protocol: pim-sm, Flag: SPT LOC ACT
     UpTime: 00:47:29
     Upstream interface: GigabitEthernet0/1/0, Refresh time: 00:47:29
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1
             Protocol: pim-sm, UpTime: 00:47:29, Expires: 00:03:03

 (10.1.3.1, 226.1.1.1)
     RP:1.1.1.1 (local)
     Protocol: pim-sm, Flag: SPT LOC ACT
     UpTime: 00:00:54
     Upstream interface: GigabitEthernet0/1/0, Refresh time: 00:00:54
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1
             Protocol: pim-sm, UpTime: 00:00:54, Expires: 00:02:36

The command outputs show that the CE connecting to the multicast source has received PIM Join messages from the other CEs connecting to multicast receivers and that PIM routing entries have been generated.

Configuration Files

CE1 configuration file

#
sysname CE1
#
multicast routing-enable
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.1.3.2 255.255.255.0
 pim sm
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 192.168.1.1 255.255.255.0
 pim sm
#
interface LoopBack1
 ip address 1.1.1.1 255.255.255.255
#
ospf 2
 area 0.0.0.0
  network 1.1.1.1 0.0.0.0
  network 10.1.3.0 0.0.0.255
  network 192.168.1.0 0.0.0.255
#
pim
 static-rp 1.1.1.1
#
return

PE1 configuration file

#
sysname PE1
#
multicast mvpn 2.2.2.2
#
ip vpn-instance VPNA
 ipv4-family
  route-distinguisher 200:1
  apply-label per-instance
  vpn-target 3:3 export-extcommunity
  vpn-target 4:4 export-extcommunity
  vpn-target 3:3 import-extcommunity
  vpn-target 4:4 import-extcommunity
  multicast routing-enable
  mvpn
   sender-enable
   c-multicast signaling bgp
   rpt-spt mode
   ipmsi-tunnel
    mldp
   spmsi-tunnel
    group 225.0.0.0 255.255.255.0 mldp limit 1
#
mpls lsr-id 2.2.2.2
mpls
#
mpls ldp
 mldp p2mp
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.1.2.1 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip binding vpn-instance VPNA
 ip address 192.168.1.2 255.255.255.0
 pim sm
#
interface GigabitEthernet0/1/2
 undo shutdown
 ip address 10.1.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 2.2.2.2 255.255.255.255
#
bgp 100
 peer 3.3.3.3 as-number 100
 peer 3.3.3.3 connect-interface LoopBack1
 peer 4.4.4.4 as-number 100
 peer 4.4.4.4 connect-interface LoopBack1
 #
 ipv4-family unicast
  undo synchronization
  peer 3.3.3.3 enable
  peer 4.4.4.4 enable
 #
 ipv4-family vpnv4
  policy vpn-target
  peer 3.3.3.3 enable
  peer 4.4.4.4 enable
 #
 ipv4-family mvpn
  policy vpn-target
  peer 3.3.3.3 enable
  peer 4.4.4.4 enable
 #
 ipv4-family vpn-instance VPNA
  import-route ospf 2
#
ospf 1
 area 0.0.0.0
  network 2.2.2.2 0.0.0.0
  network 10.1.1.0 0.0.0.255
  network 10.1.2.0 0.0.0.255
#
ospf 2 vpn-instance VPNA
 import-route bgp
 area 0.0.0.0
  network 192.168.1.0 0.0.0.255
#
pim vpn-instance VPNA
 static-rp 1.1.1.1
#
return

CE2 configuration file

#
sysname CE2
#
multicast routing-enable
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 192.168.2.2 255.255.255.0
 pim sm
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 10.1.4.1 255.255.255.0
 pim sm
 igmp enable
 igmp version 3
#
interface LoopBack1
 ip address 5.5.5.5 255.255.255.255
#
ospf 2
 area 0.0.0.0
  network 5.5.5.5 0.0.0.0
  network 10.1.4.0 0.0.0.255
  network 192.168.2.0 0.0.0.255
#
pim
 static-rp 1.1.1.1
#

return

PE2 configuration file

#
sysname PE2
#
multicast mvpn 3.3.3.3
#
ip vpn-instance VPNA
 ipv4-family
  route-distinguisher 300:1
  apply-label per-instance
  vpn-target 3:3 export-extcommunity
  vpn-target 3:3 import-extcommunity
  multicast routing-enable
  mvpn
   c-multicast signaling bgp
   rpt-spt mode
#
mpls lsr-id 3.3.3.3
mpls
#
mpls ldp
 mldp p2mp
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip binding vpn-instance VPNA
 ip address 192.168.2.1 255.255.255.0
 pim sm
#
interface GigabitEthernet0/1/2
 undo shutdown
 ip address 10.1.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 3.3.3.3 255.255.255.255
#
bgp 100
 peer 2.2.2.2 as-number 100
 peer 2.2.2.2 connect-interface LoopBack1
 #
 ipv4-family unicast
  undo synchronization
  peer 2.2.2.2 enable
 #
 ipv4-family vpnv4
  policy vpn-target
  peer 2.2.2.2 enable
 #
 ipv4-family mvpn
  policy vpn-target
  peer 2.2.2.2 enable
 #
 ipv4-family vpn-instance VPNA
  import-route ospf 2
#
ospf 1
 area 0.0.0.0
  network 3.3.3.3 0.0.0.0
  network 10.1.1.0 0.0.0.255
#
ospf 2 vpn-instance VPNA
 import-route bgp
 area 0.0.0.0
  network 192.168.2.0 0.0.0.255
#
pim vpn-instance VPNA
 static-rp 1.1.1.1
#

return

CE3 configuration file

#
sysname CE3
#
multicast routing-enable
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 192.168.3.2 255.255.255.0
 pim sm
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 10.1.5.1 255.255.255.0
 pim sm
 igmp enable
 igmp version 3
#
interface LoopBack1
 ip address 6.6.6.6 255.255.255.255
#
ospf 2
 area 0.0.0.0
  network 6.6.6.6 0.0.0.0
  network 10.1.5.0 0.0.0.255
  network 192.168.3.0 0.0.0.255
#
pim
 static-rp 1.1.1.1
#
return

PE3 configuration file

#
sysname PE3
#
multicast mvpn 4.4.4.4
#
ip vpn-instance VPNA
 ipv4-family
  route-distinguisher 400:1
  apply-label per-instance
  vpn-target 4:4 export-extcommunity
  vpn-target 4:4 import-extcommunity
  multicast routing-enable
  mvpn
   c-multicast signaling bgp
   rpt-spt mode
#
mpls lsr-id 4.4.4.4
mpls
#
mpls ldp
 mldp p2mp
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.1.2.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip binding vpn-instance VPNA
 ip address 192.168.3.1 255.255.255.0
 pim sm
#
interface LoopBack1
 ip address 4.4.4.4 255.255.255.255
#
bgp 100
 peer 2.2.2.2 as-number 100
 peer 2.2.2.2 connect-interface LoopBack1
 #
 ipv4-family unicast
  undo synchronization
  peer 2.2.2.2 enable
 #
 ipv4-family vpnv4
  policy vpn-target
  peer 2.2.2.2 enable
 #
 ipv4-family mvpn
  policy vpn-target
  peer 2.2.2.2 enable
 #
 ipv4-family vpn-instance VPNA
  import-route ospf 2
#
ospf 1
 area 0.0.0.0
  network 4.4.4.4 0.0.0.0
  network 10.1.2.0 0.0.0.255
#
ospf 2 vpn-instance VPNA
 import-route bgp
 area 0.0.0.0
  network 192.168.3.0 0.0.0.255
#
pim vpn-instance VPNA
 static-rp 1.1.1.1
#
return