Example for Configuring a Single-Root P2MP TE Tunnel

This section provides an example for configuring a single-root P2MP TE tunnel.

Networking Requirements

On the network shown in Figure 1, PE1, PE2, PE3, and PE4 use BGP AD to establish a full-mesh multicast VPLS network. PE1 functions as the root node, PE2 the bud node, and PE3 and PE4 the leaf nodes. To carry multicast services and simplify network deployment, configure a P2MP TE tunnel.

Figure 1 Configuring a P2MP TE tunnel in a single-root scenario
  • Interfaces 1 through 3 and sub-interface 4.1 in this example represent GE 0/1/0, GE 0/1/1, GE 0/1/2, and GE 0/1/3.1, respectively.


Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure an IP address and a routing protocol for each interface to ensure IP connectivity at the network layer. This example uses OSPF as the routing protocol.

  2. Configure an MPLS LSR ID and globally enable MPLS, MPLS TE, and P2MP TE on each PE.

  3. Configure a local LDP session on each PE.

  4. Configure BGP AD VPLS on each PE.

  5. Configure PE1 as the root node.

  6. Configure PE2, PE3, and PE4 as leaf nodes (the configurations on bud and leaf nodes are the same).

Data Preparation

To complete the configuration, you need the following data:

  • IP addresses of all interfaces listed in Configuration Files

  • OSPF process ID (100) and area ID (0.0.0.0) of each PE

  • BGP AS number of each PE

  • VSI name, VPLS ID, and VPN targets of each PE

  • Number of the interface bound to each VSI

  • IP address of the P2MP TE tunnel's root node (1.1.1.1)

Procedure

  1. Configure an IP address and a routing protocol for each interface to ensure IP connectivity at the network layer.

    For configuration details, see Configuration Files in this section.

  2. Configure an MPLS LSR ID and globally enable MPLS, MPLS TE, and P2MP TE on each PE.

    # Configure PE1.

    <PE1> system-view
[~PE1] mpls lsr-id 1.1.1.1
[*PE1] mpls
[*PE1-mpls] mpls te
[*PE1-mpls] mpls rsvp-te
[*PE1-mpls] mpls te cspf
[*PE1-mpls] mpls te p2mp-te
[*PE1-mpls] quit
[*PE1] commit

    # Configure PE2.

    <PE2> system-view
[~PE2] mpls lsr-id 2.2.2.2
[*PE2] mpls
[*PE2-mpls] mpls te
[*PE2-mpls] mpls rsvp-te
[*PE2-mpls] mpls te cspf
[*PE2-mpls] mpls te p2mp-te
[*PE2-mpls] quit
[*PE2] commit

    # Configure PE3.

    <PE3> system-view
[~PE3] mpls lsr-id 3.3.3.3
[*PE3] mpls
[*PE3-mpls] mpls te
[*PE3-mpls] mpls rsvp-te
[*PE3-mpls] mpls te cspf
[*PE3-mpls] mpls te p2mp-te
[*PE3-mpls] quit
[*PE3] commit

    # Configure PE4.

    <PE4> system-view
[~PE4] mpls lsr-id 4.4.4.4
[*PE4] mpls
[*PE4-mpls] mpls te
[*PE4-mpls] mpls rsvp-te
[*PE4-mpls] mpls te cspf
[*PE4-mpls] mpls te p2mp-te
[*PE4-mpls] quit
[*PE4] commit

  3. Configure a local LDP session on each PE.

    # Configure PE1.

    [~PE1] interface gigabitethernet0/1/0
[~PE1-GigabitEthernet0/1/0] mpls
[*PE1-GigabitEthernet0/1/0] mpls te
[*PE1-GigabitEthernet0/1/0] mpls rsvp-te
[*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 te
[*PE1-GigabitEthernet0/1/2] mpls rsvp-te
[*PE1-GigabitEthernet0/1/2] mpls ldp
[*PE1-GigabitEthernet0/1/2] quit
[*PE1] commit

    # Configure PE2.

    [~PE2] interface gigabitethernet0/1/0
[~PE2-GigabitEthernet0/1/0] mpls
[*PE2-GigabitEthernet0/1/0] mpls te
[*PE2-GigabitEthernet0/1/0] mpls rsvp-te
[*PE2-GigabitEthernet0/1/0] mpls ldp
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] interface gigabitethernet0/1/1
[*PE2-GigabitEthernet0/1/1] mpls
[*PE2-GigabitEthernet0/1/1] mpls te
[*PE2-GigabitEthernet0/1/1] mpls rsvp-te
[*PE2-GigabitEthernet0/1/1] mpls ldp
[*PE2-GigabitEthernet0/1/1] quit
[*PE2] commit

    # Configure PE3.

    [~PE3] interface gigabitethernet0/1/2
[~PE3-GigabitEthernet0/1/2] mpls
[*PE3-GigabitEthernet0/1/2] mpls te
[*PE3-GigabitEthernet0/1/2] mpls rsvp-te
[*PE3-GigabitEthernet0/1/2] mpls ldp
[*PE3-GigabitEthernet0/1/2] quit
[*PE3] commit

    # Configure PE4.

    [~PE4] interface gigabitethernet0/1/1
[~PE4-GigabitEthernet0/1/1] mpls
[*PE4-GigabitEthernet0/1/1] mpls te
[*PE4-GigabitEthernet0/1/1] mpls rsvp-te
[*PE4-GigabitEthernet0/1/1] mpls ldp
[*PE4-GigabitEthernet0/1/1] quit
[*PE4] commit

  4. Configure BGP AD VPLS on each PE.

    # Configure PE1.

    [~PE1] bgp 100
[*PE1-bgp] peer 2.2.2.2 as-number 100
[*PE1-bgp] peer 2.2.2.2 connect-interface loopback1
[*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] l2vpn-ad-family
[*PE1-bgp-af-l2vpn-ad] peer 2.2.2.2 enable
[*PE1-bgp-af-l2vpn-ad] peer 3.3.3.3 enable
[*PE1-bgp-af-l2vpn-ad] peer 4.4.4.4 enable
[*PE1-bgp-af-l2vpn-ad] quit
[*PE1-bgp] quit
[*PE1] mpls l2vpn
[*PE1-l2vpn] quit
[*PE1] vsi vsi1
[*PE1-vsi-vsi1] bgp-ad
[*PE1-vsi-vsi1-bgpad] vpls-id 2:2
[*PE1-vsi-vsi1-bgpad] vpn-target 2:2 import-extcommunity
[*PE1-vsi-vsi1-bgpad] vpn-target 2:2 export-extcommunity
[*PE1-vsi-vsi1-bgpad] quit
[*PE1-vsi-vsi1] quit
[*PE1] interface gigabitethernet0/1/1
[*PE1-GigabitEthernet0/1/1] l2 binding vsi vsi1
[*PE1-GigabitEthernet0/1/1] quit
[*PE1] commit

    # Configure PE2.

    [~PE2] bgp 100
[*PE2-bgp] peer 1.1.1.1 as-number 100
[*PE2-bgp] peer 1.1.1.1 connect-interface loopback1
[*PE2-bgp] l2vpn-ad-family
[*PE2-bgp-af-l2vpn-ad] peer 1.1.1.1 enable
[*PE2-bgp-af-l2vpn-ad] quit
[*PE2-bgp] quit
[*PE2] mpls l2vpn
[*PE2-l2vpn] quit
[*PE2] vsi vsi1
[*PE2-vsi-vsi1] bgp-ad
[*PE2-vsi-vsi1-bgpad] vpls-id 2:2
[*PE2-vsi-vsi1-bgpad] vpn-target 2:2 import-extcommunity 
[*PE2-vsi-vsi1-bgpad] vpn-target 2:2 export-extcommunity  
[*PE2-vsi-vsi1-bgpad] quit
[*PE2-vsi-vsi1] quit
[*PE2] interface gigabitethernet0/1/3.1
[*PE2-GigabitEthernet0/1/3.1] vlan-type dot1q 10
[*PE2-GigabitEthernet0/1/3.1] l2 binding vsi vsi1
[*PE2-GigabitEthernet0/1/3.1] quit
[*PE2] commit

    # Configure PE3.

    [~PE3] bgp 100
[*PE3-bgp] peer 1.1.1.1 as-number 100
[*PE3-bgp] peer 1.1.1.1 connect-interface loopback1
[*PE3-bgp] l2vpn-ad-family
[*PE3-bgp-af-l2vpn-ad] peer 1.1.1.1 enable
[*PE3-bgp-af-l2vpn-ad] quit
[*PE3-bgp] quit
[*PE3] mpls l2vpn
[*PE3-l2vpn] quit
[*PE3] vsi vsi1
[*PE3-vsi-vsi1] bgp-ad
[*PE3-vsi-vsi1-bgpad] vpls-id 2:2
[*PE3-vsi-vsi1-bgpad] vpn-target 2:2 import-extcommunity
[*PE3-vsi-vsi1-bgpad] vpn-target 2:2 export-extcommunity
[*PE3-vsi-vsi1-bgpad] quit
[*PE3-vsi-vsi1] quit
[*PE3] interface gigabitethernet0/1/3.1
[*PE3-GigabitEthernet0/1/3.1] vlan-type dot1q 10
[*PE3-GigabitEthernet0/1/3.1] l2 binding vsi vsi1
[*PE3-GigabitEthernet0/1/3.1] quit
[*PE3] commit

    # Configure PE4.

    [~PE4] bgp 100
[*PE4-bgp] peer 1.1.1.1 as-number 100
[*PE4-bgp] peer 1.1.1.1 connect-interface loopback1
[*PE4-bgp] l2vpn-ad-family
[*PE4-bgp-af-l2vpn-ad] peer 1.1.1.1 enable
[*PE4-bgp-af-l2vpn-ad] quit
[*PE4-bgp] quit
[*PE4] mpls l2vpn
[*PE4-l2vpn] quit
[*PE4] vsi vsi1
[*PE4-vsi-vsi1] bgp-ad
[*PE4-vsi-vsi1-bgpad] vpls-id 2:2
[*PE4-vsi-vsi1-bgpad] vpn-target 2:2 import-extcommunity 
[*PE4-vsi-vsi1-bgpad] vpn-target 2:2 export-extcommunity
[*PE4-vsi-vsi1-bgpad] quit
[*PE4-vsi-vsi1] quit
[*PE4] interface gigabitethernet0/1/3.1
[*PE4-GigabitEthernet0/1/3.1] vlan-type dot1q 10
[*PE4-GigabitEthernet0/1/3.1] l2 binding vsi vsi1
[*PE4-GigabitEthernet0/1/3.1] quit
[*PE4] commit

  5. Configure PE1 as the root node.

    # Configure PE1.

    [~PE1] mpls te p2mp-template pt1
[~PE1-te-p2mp-template-pt1] quit
[~PE1] vsi vsi1
[*PE1-vsi-vsi1] inclusive-provider-tunnel
[*PE1-vsi-vsi1-inclusive] root
[*PE1-vsi-vsi1-inclusive-root] mpls-te
[*PE1-vsi-vsi1-inclusive-root-mplste] p2mp te-template pt1
[*PE1-vsi-vsi1-inclusive-root-mplste] quit
[*PE1-vsi-vsi1-inclusive-root] quit
[*PE1-vsi-vsi1-inclusive] quit
[*PE1-vsi-vsi1] quit
[*PE1] commit

  6. Configure PE2, PE3, and PE4 as leaf nodes.

    # Configure PE2.

    [~PE2] vsi vsi1
[*PE2-vsi-vsi1] inclusive-provider-tunnel
[*PE2-vsi-vsi1-inclusive] leaf
[*PE2-vsi-vsi1-inclusive-leaf] quit
[*PE2-vsi-vsi1-inclusive] quit
[*PE2-vsi-vsi1] quit
[*PE2] commit

    # Configure PE3.

    [~PE3] vsi vsi1
[*PE3-vsi-vsi1] inclusive-provider-tunnel
[*PE3-vsi-vsi1-inclusive] leaf
[*PE3-vsi-vsi1-inclusive-leaf] quit
[*PE3-vsi-vsi1-inclusive] quit
[*PE3-vsi-vsi1] quit
[*PE3] commit

    # Configure PE4.

    [~PE4] vsi vsi1
[*PE4-vsi-vsi1] inclusive-provider-tunnel
[*PE4-vsi-vsi1-inclusive] leaf
[*PE4-vsi-vsi1-inclusive-leaf] quit
[*PE4-vsi-vsi1-inclusive] quit
[*PE4-vsi-vsi1] quit
[*PE4] commit

  7. Verify the configuration.

    After completing the configurations, run the display vsi name inclusive-provider-tunnel command on PE1 to check P2MP TE tunnel information.

    [~PE1] display vsi name vsi1 inclusive-provider-tunnel
VSI name: vsi2
  Ingress provider tunnel
  Egress provider tunnel
  Egress PMSI count: 3
   *PMSI type      : P2MP TE
    Ingress LSR ID : 2.2.2.2
    Session ID     : 32801
    P2MP ID        : 0x2020202
    State         : up
   *PMSI type      : P2MP TE
    Ingress LSR ID : 3.3.3.3
    Session ID     : 32769
    P2MP ID        : 0x3030303
    State         : up
   *PMSI type      : P2MP TE
    Ingress LSR ID : 4.4.4.4
    Session ID     : 32976
    P2MP ID        : 0x4040404
    State          : up

Configuration Files

  • PE1 configuration file

    #
sysname PE1
#
mpls lsr-id 1.1.1.1
mpls
 mpls te
 mpls rsvp-te
 mpls te cspf 
 mpls te p2mp-te
#
mpls l2vpn
#
vsi vsi1
 bgp-ad
  vpls-id 2:2
  vpn-target 2:2 import-extcommunity
  vpn-target 2:2 export-extcommunity
 inclusive-provider-tunnel
  root
   mpls-te
    p2mp te-template pt1
#
mpls te p2mp-template pt1
#                                                                            
interface GigabitEthernet0/1/0
 undo shutdown                            
 ip address 10.1.2.1 255.255.255.0        
 mpls
 mpls te
 mpls rsvp-te
 mpls ldp
#
interface GigabitEthernet0/1/1
 undo shutdown                            
 l2 binding vsi vsi1
#
interface GigabitEthernet0/1/2
 undo shutdown                            
 ip address 10.1.3.1 255.255.255.0        
 mpls
 mpls te
 mpls rsvp-te
 mpls ldp
#
interface LoopBack1
 ip address 1.1.1.1 255.255.255.255
#
bgp 100 
 peer 2.2.2.2 as-number 100
 peer 2.2.2.2 connect-interface LoopBack1 
 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 
 #
 l2vpn-ad-family
  peer 2.2.2.2 enable
  peer 3.3.3.3 enable
  peer 4.4.4.4 enable
 #
ospf 100                                  
 area 0.0.0.0                             
  network 1.1.1.1 0.0.0.0                 
  network 10.1.2.0 0.0.0.255              
  network 10.1.3.0 0.0.0.255
#
return

  • PE2 configuration file

    #
sysname PE2
#
mpls lsr-id 2.2.2.2
mpls
 mpls te
 mpls rsvp-te
 mpls te cspf 
 mpls te p2mp-te
#
mpls l2vpn
#
vsi vsi1
 bgp-ad
  vpls-id 2:2
  vpn-target 2:2 import-extcommunity
  vpn-target 2:2 export-extcommunity
 inclusive-provider-tunnel
  leaf
#
interface GigabitEthernet0/1/0
 undo shutdown                            
 ip address 10.1.2.2 255.255.255.0        
 mpls
 mpls te
 mpls rsvp-te
 mpls ldp
#
interface GigabitEthernet0/1/1
 undo shutdown                            
 ip address 10.1.5.1 255.255.255.0        
 mpls
 mpls te
 mpls rsvp-te
 mpls ldp
#
interface GigabitEthernet0/1/3.1
 vlan-type dot1q 10
 l2 binding vsi vsi1
#
interface LoopBack1
 ip address 2.2.2.2 255.255.255.255
#
bgp 100 
 peer 1.1.1.1 as-number 100
 peer 1.1.1.1 connect-interface LoopBack1 
 #
 l2vpn-ad-family
  peer 1.1.1.1 enable
 #
ospf 100                                  
 area 0.0.0.0                             
  network 2.2.2.2 0.0.0.0                 
  network 10.1.2.0 0.0.0.255
  network 10.1.5.0 0.0.0.255
#                                         
return

  • PE3 configuration file

    #
sysname PE3
#
mpls lsr-id 3.3.3.3
mpls
 mpls te
 mpls rsvp-te
 mpls te cspf 
 mpls te p2mp-te
#
mpls l2vpn
#
vsi vsi1
 bgp-ad
  vpls-id 2:2
  vpn-target 2:2 import-extcommunity
  vpn-target 2:2 export-extcommunity
 inclusive-provider-tunnel
  leaf
#
interface GigabitEthernet0/1/2
 undo shutdown                            
 ip address 10.1.3.2 255.255.255.0        
 mpls
 mpls te
 mpls rsvp-te
 mpls ldp
#
interface GigabitEthernet0/1/3.1
 vlan-type dot1q 10  
 l2 binding vsi vsi1
#
interface LoopBack1
 ip address 3.3.3.3 255.255.255.255
#
bgp 100 
 peer 1.1.1.1 as-number 100
 peer 1.1.1.1 connect-interface LoopBack1 
 #
 l2vpn-ad-family
  peer 1.1.1.1 enable
#
ospf 100                                  
 area 0.0.0.0                             
  network 3.3.3.3 0.0.0.0                 
  network 10.1.3.0 0.0.0.255
#                                         
return

  • PE4 configuration file

    #
sysname PE4
#
mpls lsr-id 4.4.4.4
mpls
 mpls te
 mpls rsvp-te
 mpls te cspf 
 mpls te p2mp-te
#
mpls l2vpn
#
vsi vsi1
 bgp-ad
  vpls-id 2:2
  vpn-target 2:2 import-extcommunity
  vpn-target 2:2 export-extcommunity
 inclusive-provider-tunnel
  leaf
#
interface GigabitEthernet0/1/1
 undo shutdown                            
 ip address 10.1.5.2 255.255.255.0        
 mpls
 mpls te
 mpls rsvp-te
 mpls ldp#
interface GigabitEthernet0/1/3.1
 vlan-type dot1q 10  
 l2 binding vsi vsi1
#
interface LoopBack1
 ip address 4.4.4.4 255.255.255.255
#
bgp 100 
 peer 1.1.1.1 as-number 100
 peer 1.1.1.1 connect-interface LoopBack1 
 #
 l2vpn-ad-family
  peer 1.1.1.1 enable
#
ospf 100                                  
 area 0.0.0.0                             
  network 4.4.4.4 0.0.0.0                 
  network 10.1.5.0 0.0.0.255    
#                                         
return
Parent Topic: Configuration Examples for VPLS
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
< Previous topic Next topic >