Example for Configuring Mutual Protection Between a CCC VC and an LDP VC (Dual-Homing 2PE Scenario)

This section provides an example for configuring mutual protection between a CCC VC and an LDP VC. Specifying the master/backup status of PEs allows for mutual protection between a CCC VC and an LDP VC.

Networking Requirements

As shown in Figure 1, CE1 accesses CE2 through PE1. If the AC functioning as the active link between CE2 and PE1 fails, CE1 cannot be authenticated. To resolve this issue, you can deploy a PW between PE1 and PE2 to protect the active AC. Under normal circumstances, CE1 accesses CE2 for authentication through PE1. If the AC between PE1 and CE2 fails, CE1 accesses CE2 through the PW between PE1 and PE2 to prevent a service interruption.

Figure 1 Mutual protection between a CCC VC and an LDP VC
  • Interfaces 1 and 2 in this example represent GE 0/1/0 and GE 0/1/1, respectively.


Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure a routing protocol on the backbone network to achieve connectivity between devices.

  2. Configure basic MPLS functions on PEs.

  3. Configure a CCC that allows CE1 and CE2 to communicate and a protection PW for the CCC on PE1.

Data Preparation

To complete the configuration, you need the following data:
  • Peer IP addresses and VLAN IDs
  • Basic MPLS capabilities of peers
  • CCC VC and LDP VC services on the peers

Procedure

  1. Configure CEs.

    # Configure CE1.

    <HUAWEI> system-view
[~HUAWEI] sysname CE1
[*CE1] interface Eth-Trunk 10
[*CE1-Eth-Trunk10] mode lacp-static
[*CE1-Eth-Trunk10] quit
[*CE1] interface Eth-Trunk10.100
[*CE1-Eth-Trunk10.100] undo shutdown
[*CE1-Eth-Trunk10.100] vlan-type dot1q 100
[*CE1-Eth-Trunk10.100] ip address 10.1.1.1 255.255.255.0
[*CE1-Eth-Trunk10.100] quit
[*CE1] interface gigabitethernet0/1/1
[*CE1-Gigabitethernet0/1/1] undo shutdown
[*CE1-GigabitEthernet0/1/1] eth-trunk 10
[*CE1-GigabitEthernet0/1/1] quit
[*CE1] interface gigabitethernet0/1/0
[*CE1-GigabitEthernet0/1/0] undo shutdown
[*CE1-GigabitEthernet0/1/0] eth-trunk 10
[*CE1-GigabitEthernet0/1/0] quit
[*CE1] commit

    # Configure CE2.

    <HUAWEI> system-view
[~HUAWEI] sysname CE2
[*CE2] interface Eth-Trunk 20
[*CE2-Eth-Trunk20] mode lacp-static
[*CE2-Eth-Trunk120] quit
[*CE2] interface Eth-Trunk20.100
[*CE2-Eth-Trunk20.100] undo shutdown
[*CE2-Eth-Trunk20.100] vlan-type dot1q 100
[*CE2-Eth-Trunk20.100] ip address 10.1.1.2 255.255.255.0
[*CE2-Eth-Trunk120.100] quit
[*CE2] interface gigabitethernet0/1/1
[*CE2-GigabitEthernet0/1/1] undo shutdown
[*CE2-GigabitEthernet0/1/1] eth-trunk 20
[*CE2-GigabitEthernet0/1/1] quit
[*CE2] interface gigabitethernet0/1/0
[*CE2-GigabitEthernet0/1/0] undo shutdown
[*CE2-GigabitEthernet0/1/0] eth-trunk 20
[*CE2-GigabitEthernet0/1/0] quit
[*CE2] commit

  2. Assign an IP address to each interface on devices on the MPLS backbone network.

    # Configure PE1.

    <HUAWEI> system-view
[~HUAWEI] sysname PE1
[*PE1] interface loopback 1
[*PE1-LoopBack1] ip address 1.1.1.1 32
[*PE1-LoopBack1] quit
[*PE1] interface gigabitethernet 0/1/1
[*PE1-GigabitEthernet0/1/1] ip address 192.168.1.1 24
[*PE1-GigabitEthernet0/1/1] undo shutdown
[*PE1-GigabitEthernet0/1/1] quit
[*PE1] commit

    # Configure PE2.

    <HUAWEI> system-view
[~HUAWEI] sysname PE2
[*PE2] interface loopback 1
[*PE2-LoopBack1] ip address 2.2.2.2 32
[*PE2-LoopBack1] quit
[*PE2] interface gigabitethernet 0/1/1
[*PE2-GigabitEthernet0/1/1] ip address 192.168.1.2 24
[*PE2-GigabitEthernet0/1/1] undo shutdown
[*PE2-GigabitEthernet0/1/1] quit
[*PE2] commit

  3. Configure basic MPLS functions and establish LSPs between the PEs.

    # Configure PE1.

    [~PE1] mpls lsr-id 1.1.1.1
[*PE1] mpls
[*PE1-mpls] quit
[*PE1] mpls ldp
[*PE1-mpls-ldp] quit
[*PE1] interface gigabitethernet 0/1/1
[*PE1-GigabitEthernet0/1/1] mpls
[*PE1-GigabitEthernet0/1/1] mpls ldp
[*PE1-GigabitEthernet0/1/1] quit
[*PE1] commit

    # Configure PE2.

    [~PE2] mpls lsr-id 2.2.2.2
[*PE2] mpls
[*PE2-mpls] quit
[*PE2] mpls ldp
[*PE2-mpls-ldp] quit
[*PE2] interface gigabitethernet 0/1/1
[*PE2-GigabitEthernet0/1/1] mpls
[*PE2-GigabitEthernet0/1/1] mpls ldp
[*PE2-GigabitEthernet0/1/1] quit
[*PE2] commit

  4. Configure an IGP. In this example, OSPF is used.

    # Configure PE1.

    [~PE1] ospf 1
[*PE1-ospf-1] area 0.0.0.0
[*PE1-ospf-1-area-0.0.0.0] network 1.1.1.1 0.0.0.0
[*PE1-ospf-1-area-0.0.0.0] network 192.168.1.1 0.0.0.255
[*PE1-ospf-1-area-0.0.0.0] quit
[*PE1-ospf-1] quit
[*PE1] commit

    # Configure PE2.

    [~PE2] ospf 1
[*PE2-ospf-1] area 0.0.0.0
[*PE2-ospf-1-area-0.0.0.0] network 2.2.2.2 0.0.0.0
[*PE2-ospf-1-area-0.0.0.0] network 192.168.1.2 0.0.0.255
[*PE2-ospf-1-area-0.0.0.0] quit
[*PE2-ospf-1] quit
[*PE2] commit

  5. Enable MPLS L2VPN on each PE.

    # Configure PE1.

    [~PE1] mpls l2vpn
[*PE1-l2vpn] quit
[*PE1] commit

    # Configure PE2.

    [~PE2] mpls l2vpn
[*PE2-l2vpn] quit
[*PE2] commit

  6. Configure an E-Trunk to determine the primary/secondary status of PWs.
    1. Configure an E-Trunk.

      # Configure PE1.

      [~PE1] lacp e-trunk system-id 00e0-fc00-0000
[*PE1] lacp e-trunk priority 100
[*PE1] e-trunk 10
[*PE1-e-trunk-10] priority 10
[*PE1-e-trunk-10] peer-address 2.2.2.2 source-address 1.1.1.1
[*PE1-e-trunk-10] quit
[*PE1] interface eth-trunk 10
[*PE1-Eth-Trunk10] mode lacp-static
[*PE1-Eth-Trunk10] e-trunk 10
[*PE1-Eth-Trunk10] quit
[*PE1] e-trunk 20
[*PE1-e-trunk-20] priority 20
[*PE1-e-trunk-20] peer-address 2.2.2.2 source-address 1.1.1.1
[*PE1-e-trunk-20] quit
[*PE1] interface eth-trunk 20
[*PE1-Eth-Trunk20] mode lacp-static
[*PE1-Eth-Trunk20] e-trunk 20
[*PE1-Eth-Trunk20] quit
[*PE1] interface gigabitethernet 0/1/0
[*PE1-GigabitEthernet0/1/0] undo shutdown
[*PE1-GigabitEthernet0/1/0] eth-trunk 10
[*PE1-GigabitEthernet0/1/0] quit
[*PE1] interface gigabitethernet 0/1/2
[*PE1-GigabitEthernet0/1/2] undo shutdown
[*PE1-GigabitEthernet0/1/2] eth-trunk 20
[*PE1-GigabitEthernet0/1/2] quit
[*PE1] commit

      # Configure PE2.

      [~PE2] lacp e-trunk system-id 00e0-fc00-0000
[*PE2] lacp e-trunk priority 100
[*PE2] e-trunk 10
[*PE2-e-trunk-10] priority 20
[*PE2-e-trunk-10] peer-address 1.1.1.1 source-address 2.2.2.2
[*PE2-e-trunk-10] quit
[*PE2] interface eth-trunk 10
[*PE2-Eth-Trunk10] mode lacp-static
[*PE2-Eth-Trunk10] e-trunk 10
[*PE2-Eth-Trunk10] quit
[*PE2] e-trunk 20
[*PE2-e-trunk-20] priority 30
[*PE2-e-trunk-20] peer-address 1.1.1.1 source-address 2.2.2.2
[*PE2-e-trunk-20] quit
[*PE2] interface eth-trunk 20
[*PE2-Eth-Trunk20] mode lacp-static
[*PE2-Eth-Trunk20] e-trunk 20
[*PE2-Eth-Trunk20] quit
[*PE2] interface gigabitethernet 0/1/0
[*PE2-GigabitEthernet0/1/0] undo shutdown
[*PE2-GigabitEthernet0/1/0] eth-trunk 10
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] interface gigabitethernet 0/1/2
[*PE2-GigabitEthernet0/1/2] undo shutdown
[*PE2-GigabitEthernet0/1/2] eth-trunk 20
[*PE2-GigabitEthernet0/1/2] quit
[*PE2] commit

    2. Bind BFD to the E-Trunk.

      # Configure PE1.

      [~PE1] bfd
[*PE1-bfd] quit
[*PE1] bfd hello bind peer-ip 2.2.2.2 source-ip 1.1.1.1
[*PE1-bfd-session-hello] discriminator local 100
[*PE1-bfd-session-hello] discriminator remote 101
[*PE1-bfd-session-hello] quit
[*PE1] bfd hi bind peer-ip 2.2.2.2 source-ip 1.1.1.1
[*PE1-bfd-session-hi] discriminator local 200
[*PE1-bfd-session-hi] discriminator remote 201
[*PE1-bfd-session-hi] quit
[*PE1] e-trunk 10
[*PE1-e-trunk-10] e-trunk track bfd-session session-name hello
[*PE1-e-trunk-10] quit
[*PE1] e-trunk 20
[*PE1-e-trunk-20] e-trunk track bfd-session session-name hi
[*PE1-e-trunk-20] quit
[*PE1] commit

      # Configure PE2.

      [~PE2] bfd
[*PE1-bfd] quit
[*PE1] bfd hello bind peer-ip 1.1.1.1 source-ip 2.2.2.2
[*PE2-bfd-session-hello] discriminator local 101
[*PE2-bfd-session-hello] discriminator remote 100
[*PE2-bfd-session-hello] quit
[*PE2] bfd hi bind peer-ip 1.1.1.1 source-ip 2.2.2.2
[*PE2-bfd-session-hi] discriminator local 201
[*PE2-bfd-session-hi] discriminator remote 200
[*PE2-bfd-session-hi] quit
[*PE2] e-trunk 10
[*PE2-e-trunk-10] e-trunk track bfd-session session-name hello
[*PE2-e-trunk-10] quit
[*PE2] e-trunk 20
[*PE2-e-trunk-20] e-trunk track bfd-session session-name hi
[*PE2-e-trunk-20] quit
[*PE2] commit

  7. Create a CCC VC and LDP VCs on the PEs.

    # Configure PE1.

    [~PE1] interface Eth-Trunk10.100
[*PE1-Eth-Trunk10.100] vlan-type dot1q 100
[*PE1-Eth-Trunk10.100] quit
[*PE1] interface Eth-Trunk20.100
[*PE1-Eth-Trunk20.100] vlan-type dot1q 100
[*PE1-Eth-Trunk20.100] mpls ccc out-interface Eth-Trunk10.100
[*PE1-Eth-Trunk20.100] mpls l2vc 2.2.2.2 200 secondary
[*PE1-Eth-Trunk20.100] mpls l2vpn redundancy independent
[*PE1-Eth-Trunk20.100] quit
[*PE1] interface Eth-Trunk10.100
[*PE1-Eth-Trunk10.100] mpls ccc out-interface Eth-Trunk20.100
[*PE1-Eth-Trunk10.100] mpls l2vc 2.2.2.2 100 secondary
[*PE1-Eth-Trunk10.100] mpls l2vpn redundancy independent
[*PE1-Eth-Trunk10.100] quit
[*PE1] commit

    # Configure PE2.

    [~PE2] interface Eth-Trunk10.100
[*PE2-Eth-Trunk10.100] vlan-type dot1q 100
[*PE2-Eth-Trunk10.100] quit
[*PE2] interface Eth-Trunk20.100
[*PE2-Eth-Trunk20.100] vlan-type dot1q 100
[*PE2-Eth-Trunk20.100] mpls ccc out-interface Eth-Trunk10.100
[*PE2-Eth-Trunk20.100] mpls l2vc 1.1.1.1 100 secondary
[*PE2-Eth-Trunk20.100] mpls l2vpn redundancy independent
[*PE2-Eth-Trunk20.100] quit
[*PE2] interface Eth-Trunk10.100
[*PE2-Eth-Trunk10.100] mpls ccc out-interface Eth-Trunk20.100
[*PE2-Eth-Trunk10.100] mpls l2vc 1.1.1.1 200 secondary
[*PE2-Eth-Trunk10.100] mpls l2vpn redundancy independent
[*PE2-Eth-Trunk10.100] quit
[*PE2] commit

  8. Verify the configuration.

    After the configuration is complete, check CCC VC and LDP VC information on the PE1. The command outputs show that CCC VC and LDP VC connection has been established on PE1 and both connections are in the Up state.

    <PE1> display mpls l2vpn vpws
Pri : Primary            Sec : Secondary            Byp : Bypass
PWb : PW-bypass          ACb : AC-bypass

Access Circuit                Virtual Circuit               States Active   Role
GE0/1/2.100                    GE0/1/1.100                 Up     Active   Pri
                               2.2.2.2:2                   Up     Inactive Sec
GE0/1/1.100                    GE0/1/2.100                 Up     Active   Pri

Configuration Files

  • CE1 configuration file

    #
sysname CE1
#interface Eth-Trunk10                                                           
  mode lacp-static                                                               
#                                                                               
interface Eth-Trunk10.100                                                       
 vlan-type dot1q 100                                                            
 ip address 10.1.1.1 255.255.255.0                                             
#                                                                               
interface GigabitEthernet0/1/0                                                         
 undo shutdown                                                                  
 eth-trunk 10  
#                                                                 
interface GigabitEthernet0/1/1                                                        
 undo shutdown                                                                  
 eth-trunk 10                                                                              
#                                                                 
#return

  • CE2 configuration file

    #
sysname CE2
#
interface Eth-Trunk20                                                           
 mode lacp-static                                                               
#                                                                               
interface Eth-Trunk20.100                                                       
 vlan-type dot1q 100                                                            
 ip address 10.1.1.2 255.255.255.0                                             
#                                                                               
interface GigabitEthernet0/1/0                                                         
 undo shutdown                                                                  
 eth-trunk 20  
#                                                                 
interface GigabitEthernet0/1/1                                                        
 undo shutdown                                                                  
 eth-trunk 20
#
return

  • PE1 configuration file

    #
sysname PE1
#
 lacp e-trunk system-id 00e0-fc00-0000
 lacp e-trunk priority 100
#
 e-trunk 10
#
 e-trunk 20
#
bfd
#
mpls lsr-id 1.1.1.1
#
mpls
#
mpls ldp
#
mpls l2vpn
#
interface Eth-Trunk10                                                           
  mode lacp-static   
  e-trunk 10                                                            
# 
interface Eth-Trunk10.100
 vlan-type dot1q 100                                                            
 mpls ccc out-interface Eth-Trunk20.100
 mpls l2vc 2.2.2.2 100 secondary                                                
 mpls l2vpn redundancy independent                                                   
#                                                                               
interface Eth-Trunk20                                                           
  mode lacp-static     
  e-trunk 20                                                            
#                                                                                
interface Eth-Trunk20.100
 vlan-type dot1q 100                                                            
 mpls ccc out-interface Eth-Trunk10.100
 mpls l2vc 2.2.2.2 200 secondary                                                
 mpls l2vpn redundancy independent                                                   
#                                                                            
interface GigabitEthernet0/1/2
 undo shutdown
 eth-trunk 20                                                            
#
interface GigabitEthernet0/1/0
 undo shutdown
 eth-trunk 10
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 192.168.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 1.1.1.1 255.255.255.255
#
ospf 1                                                                                                            
 area 0.0.0.0                                                                   
  network 1.1.1.1 0.0.0.0                                                       
  network 192.168.1.1 0.0.0.255
#
bfd hello bind peer-ip 2.2.2.2 source-ip 1.1.1.1
 discriminator local 100
 discriminator remote 101
#
e-trunk 10
 priority 10
 peer-address 2.2.2.2 source-address 1.1.1.1
 e-trunk track bfd-session session-name hello
#
e-trunk 20
 priority 20
 peer-address 2.2.2.2 source-address 1.1.1.1
 e-trunk track bfd-session session-name hello
#
return

  • PE2 configuration file

    #
sysname PE2
#
 lacp e-trunk system-id 00e0-fc00-0000
 lacp e-trunk priority 100
#
 e-trunk 10
#
 e-trunk 20
#
bfd
#
mpls lsr-id 2.2.2.2
#
mpls
#
mpls ldp
#
mpls l2vpn
#
interface Eth-Trunk10                                                           
  mode lacp-static  
  e-trunk 10                                                             
#
interface Eth-Trunk10.100
 vlan-type dot1q 100                                                            
 mpls ccc out-interface Eth-Trunk20.100
 mpls l2vc 1.1.1.1 200 secondary                                                
 mpls l2vpn redundancy independent                                                   
#
interface Eth-Trunk20                                                           
  mode lacp-static 
  e-trunk 20                                                              
#                                                                                
interface Eth-Trunk20.100

 vlan-type dot1q 100                                                            
 mpls ccc out-interface Eth-Trunk10.100
 mpls l2vc 1.1.1.1 100 secondary                                                
 mpls l2vpn redundancy independent                                                   
#
interface GigabitEthernet0/1/0
 undo shutdown
 eth-trunk 10  
#
interface GigabitEthernet0/1/2
 undo shutdown
 eth-trunk 20                                                            
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 192.168.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 2.2.2.2 255.255.255.255
#
ospf 1                                                                                                            
 area 0.0.0.0                                                                   
  network 2.2.2.2 0.0.0.0                                                       
  network 192.168.1.2 0.0.0.255
#
bfd hello bind peer-ip 1.1.1.1 source-ip 2.2.2.2
 discriminator local 101
 discriminator remote 100
#
e-trunk 10
 priority 20
 peer-address 1.1.1.1 source-address 2.2.2.2
 e-trunk track bfd-session session-name hello
#
e-trunk 20
 priority 30
 peer-address 1.1.1.1 source-address 2.2.2.2
 e-trunk track bfd-session session-name hello
#
return
Parent Topic: Configuration Examples for VPWS
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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