Example for Configuring BGP VPLS

BGP VPLS applies to scenarios where PEs can use BGP as the VPLS signaling. In BGP VPLS, automatic discovery of VPLS PEs is implemented by configuring VPN targets.

Networking Requirements

As shown in Figure 1, VPLS is enabled on PE1 and PE2. CE1 and CE2 are connected to PE1 and PE2, respectively. CE1 and CE2 belong to the same VPLS network.

To implement communication between CE1 and CE2, BGP is used as the VPLS signaling to establish PWs and VPN targets are configured to automatically discover VPLS PEs.

Figure 1 Networking diagram for configuring BGP VPLS

  • Interface 1, sub-interface 1.1, interface 2, and sub-interface 2.1 in this example represent GE 0/1/0, GE 0/1/0.1, GE 0/1/8, and GE 0/1/8.1, respectively.


Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure a routing protocol to enable connectivity between devices on a backbone network and configure basic MPLS functions.

  2. Establish LSPs between PEs.

  3. Enable MPLS L2VPN on each PE.

  4. Enable the BGP peers to exchange VPLS information.

  5. Create a VSI on each PE and specify the BGP signaling, RD, VPN target, and site ID.

  6. Bind a VSI to the PE's AC interface connected to a CE.

Data Preparation

To complete the configuration, you need the following data:

  • Peer IP addresses

  • Names of the VSIs on PE1 and PE2

  • BGP AS numbers on PE1 and PE2

  • BGP as a VPLS signaling protocol

  • RD, VPN target, and site ID of a VSI on each PE

  • Interfaces to which VSIs are bound and VLAN IDs of the interfaces

Procedure

  1. Assign an IP address to each device interface on the backbone network.

    # Configure PE1.

    <HUAWEI> system-view
[~HUAWEI] sysname PE1
[*HUAWEI] commit
[~PE1] interface loopback1
[*PE1-Loopback1] ip address 1.1.1.9 32
[*PE1-Loopback1] quit
[*PE1] interface gigabitethernet 0/1/0.1
[*PE1-GigabitEthernet0/1/0.1] undo shutdown
[*PE1-GigabitEthernet0/1/0.1] quit
[*PE1] interface gigabitethernet 0/1/8
[*PE1-GigabitEthernet0/1/8] ip address 192.168.1.1 24
[*PE1-GigabitEthernet0/1/8] quit
[*PE1] commit

    # Configure the P.

    <HUAWEI> system-view
[~HUAWEI] sysname P
[*HUAWEI] commit
[~P] interface loopback1
[*P-Loopback1] ip address 2.2.2.9 32
[*P-Loopback1] quit
[*P] interface gigabitethernet 0/1/0
[*P-GigabitEthernet0/1/0] ip address 192.168.1.2 24
[*P-GigabitEthernet0/1/0] quit
[*P] interface gigabitethernet 0/1/8
[*P-GigabitEthernet0/1/8] ip address 169.168.10.1 24
[*P-GigabitEthernet0/1/8] quit
[*P] commit

    # Configure PE2.

    <HUAWEI> system-view
[~HUAWEI] sysname PE2
[*HUAWEI] commit
[~PE2] interface loopback1
[*PE2-Loopback1] ip address 3.3.3.9 32
[*PE2-Loopback1] quit
[*PE2] interface gigabitethernet 0/1/0
[*PE2-GigabitEthernet0/1/0] 169.168.10.2 24
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] interface gigabitethernet 0/1/8.1
[*PE2-GigabitEthernet0/1/8.1] undo shutdown
[*PE2-GigabitEthernet0/1/8.1] quit
[*PE2] commit

  2. 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 1.1.1.9 0.0.0.0
[*PE1-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
[*PE1-ospf-1-area-0.0.0.0] quit
[*PE1-ospf-1] quit
[*PE1] commit

    # Configure the P.

    [~P] ospf 1
[*P-ospf-1] area 0.0.0.0
[*P-ospf-1-area-0.0.0.0] network 2.2.2.9 0.0.0.0
[*P-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
[*P-ospf-1-area-0.0.0.0] network 169.168.10.0 0.0.0.255
[*P-ospf-1-area-0.0.0.0] quit
[*P-ospf-1] quit
[*P] commit

    # Configure PE2.

    [~PE2] ospf 1
[*PE2-ospf-1] area 0.0.0.0
[*PE2-ospf-1-area-0.0.0.0] network 3.3.3.9 0.0.0.0
[*PE2-ospf-1-area-0.0.0.0] network 169.168.10.0 0.0.0.255
[*PE2-ospf-1-area-0.0.0.0] quit
[*PE2-ospf-1] quit
[*PE2] commit

  3. Configure basic MPLS functions and establish an LSP.

    # Configure PE1.

    [~PE1] mpls lsr-id 1.1.1.9
[*PE1] mpls
[*PE1-mpls] quit
[*PE1] mpls ldp
[*PE1-mpls-ldp] quit
[*PE1] interface gigabitethernet 0/1/8
[*PE1-GigabitEthernet0/1/8] mpls
[*PE1-GigabitEthernet0/1/8] mpls ldp
[*PE1-GigabitEthernet0/1/8] quit
[*PE1] commit

    # Configure the P.

    [~P] mpls lsr-id 2.2.2.9
[*P] mpls
[*P-mpls] quit
[*P] mpls ldp
[*P-mpls-ldp] quit
[*P] interface gigabitethernet 0/1/0
[*P-GigabitEthernet0/1/0] mpls
[*P-GigabitEthernet0/1/0] mpls ldp
[*P-GigabitEthernet0/1/0] quit
[*P] interface gigabitethernet 0/1/8
[*P-GigabitEthernet0/1/8] mpls
[*P-GigabitEthernet0/1/8] mpls ldp
[*P-GigabitEthernet0/1/8] quit
[*P] commit

    # Configure PE2.

    [~PE2] mpls lsr-id 3.3.3.9
[*PE2] mpls
[*PE2-mpls] quit
[*PE2] mpls ldp
[*PE2-mpls-ldp] quit
[*PE2] interface gigabitethernet 0/1/0
[*PE2-GigabitEthernet0/1/0] mpls
[*PE2-GigabitEthernet0/1/0] mpls ldp
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] commit

  4. Enable the BGP peers to exchange VPLS information.

    # Configure PE1.

    [~PE1] bgp 100
[*PE1-bgp] peer 3.3.3.9 as-number 100
[*PE1-bgp] peer 3.3.3.9 connect-interface loopback1
[*PE1-bgp] l2vpn-ad-family
[*PE1-bgp-af-l2vpn-ad] peer 3.3.3.9 enable
[*PE1-bgp-af-l2vpn-ad] peer 3.3.3.9 signaling vpls
[*PE1-bgp-af-l2vpn-ad] quit
[*PE1-bgp] quit
[*PE1] commit

    # Configure PE2.

    [~PE2] bgp 100
[*PE2-bgp] peer 1.1.1.9 as-number 100
[*PE2-bgp] peer 1.1.1.9 connect-interface loopback1
[*PE2-bgp] l2vpn-ad-family
[*PE2-bgp-af-l2vpn-ad] peer 1.1.1.9 enable
[*PE2-bgp-af-l2vpn-ad] peer 1.1.1.9 signaling vpls
[*PE2-bgp-af-l2vpn-ad] quit
[*PE2-bgp] 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 a VSI on each PE.

    The site IDs on both ends of a VPLS PW must be different.

    # Configure PE1.

    [~PE1] vsi bgp1
[*PE1-vsi-bgp1] pwsignal bgp
[*PE1-vsi-bgp1-bgp] route-distinguisher 192.168.1.1:1
[*PE1-vsi-bgp1-bgp] vpn-target 100:1 import-extcommunity
[*PE1-vsi-bgp1-bgp] vpn-target 100:1 export-extcommunity
[*PE1-vsi-bgp1-bgp] site 1 range 5 default-offset 0
[*PE1-vsi-bgp1-bgp] quit
[*PE1-vsi-bgp1] quit
[*PE1] commit

    # Configure PE2.

    [~PE2] vsi bgp1
[*PE2-vsi-bgp1] pwsignal bgp
[*PE2-vsi-bgp1-bgp] route-distinguisher 169.168.10.2:1
[*PE2-vsi-bgp1-bgp] vpn-target 100:1 import-extcommunity
[*PE2-vsi-bgp1-bgp] vpn-target 100:1 export-extcommunity
[*PE2-vsi-bgp1-bgp] site 2 range 5 default-offset 0
[*PE2-vsi-bgp1-bgp] quit
[*PE2-vsi-bgp1] quit
[*PE2] commit

  7. Bind VSIs to AC interfaces on PEs.

    # Create a sub-interface on PE1; add this sub-interface to VLAN 10; bind this sub-interface to the VSI.

    [~PE1] interface gigabitethernet0/1/0.1
[*PE1-GigabitEthernet0/1/0.1] shutdown
[*PE1-GigabitEthernet0/1/0.1] vlan-type dot1q 10
[*PE1-GigabitEthernet0/1/0.1] l2 binding vsi bgp1
[*PE1-GigabitEthernet0/1/0.1] undo shutdown
[*PE1-GigabitEthernet0/1/0.1] quit
[*PE1] commit

    # Create a sub-interface on PE2; add this sub-interface to VLAN 10; bind this sub-interface to the VSI.

    [~PE2] interface gigabitethernet0/1/8.1
[*PE2-GigabitEthernet0/1/8.1] shutdown
[*PE2-GigabitEthernet0/1/8.1] vlan-type dot1q 10
[*PE2-GigabitEthernet0/1/8.1] l2 binding vsi bgp1
[*PE2-GigabitEthernet0/1/8.1] undo shutdown
[*PE2-GigabitEthernet0/1/8.1] quit
[*PE2] commit

  8. Configure CEs.

    # Configure CE1.

    <HUAWEI> system-view
[~HUAWEI] sysname CE1
[*HUAWEI] commit
[~CE1] interface gigabitethernet0/1/0.1
[*CE1-GigabitEthernet0/1/0.1] shutdown
[*CE1-GigabitEthernet0/1/0.1] vlan-type dot1q 10
[*CE1-GigabitEthernet0/1/0.1] ip address 10.1.1.1 255.255.255.0
[*CE1-GigabitEthernet0/1/0.1] undo shutdown
[*CE1-GigabitEthernet0/1/0.1] quit
[*CE1] commit

    # Configure CE2.

    <HUAWEI> system-view
[~HUAWEI] sysname CE2
[*HUAWEI] commit
[~CE2] interface gigabitethernet0/1/0.1
[*CE2-GigabitEthernet0/1/0.1] shutdown
[*CE2-GigabitEthernet0/1/0.1] vlan-type dot1q 10
[*CE2-GigabitEthernet0/1/0.1] ip address 10.1.1.2 255.255.255.0
[*CE2-GigabitEthernet0/1/0.1] undo shutdown
[*CE2-GigabitEthernet0/1/0.1] quit
[*CE2] commit

  9. Verify the configuration.

    After completing the preceding configurations, run the display vsi name bgp1 verbose command on PE1. You can find that a VSI named bgp1 has set up a PW to PE2, and the status of the VSI is up.

    [~PE1] display vsi name bgp1 verbose
 ***VSI Name               : bgp1
    Administrator VSI      : no
    Isolate Spoken         : disable
    VSI Index              : 0
    PW Signaling           : bgp
    Member Discovery Style : auto
    PW MAC Learn Style     : unqualify
    Encapsulation Type     : vlan
    MTU                    : 1500
    Diffserv Mode          : uniform
    Service Class          : --
    Color                  : --
    DomainId               : 255
    Domain Name            :
    Ignore AcState         : disable
    Create Time            : 0 days, 0 hours, 6 minutes, 52 seconds
    VSI State              : up
    Resource Status        : Valid

    BGP RD                 : 192.168.1.1:1
    SiteID/Range/Offset    : 1/5/0
    Import vpn target      : 100:1
    Export vpn target      : 100:1
    Remote Label Block     : 25600/5/0
    Local Label Block      : 0/25600/5/0

    Interface Name         : GigabitEthernet0/1/0.1
    State                  : up
    Access Port            : false
    Last Up Time           : 2013/01/17 10:29:49
    Total Up Time          : 0 days, 0 hours, 18 minutes, 20 seconds

   **PW Information:

   *Peer Ip Address        : 3.3.3.9
    PW State               : up
    Local VC Label         : 25602
    Remote VC Label        : 25601
    PW Type                : label
    Tunnel ID              : 0x800006
    Broadcast Tunnel ID    : 0x800006
    Broad BackupTunnel ID  : 0x0
    Ckey                   : 0x2
    Nkey                   : 0x1
    Main PW Token          : 0x800006
    Slave PW Token         : 0x0
    Tnl Type               : LSP
    OutInterface           : GigabitEthernet0/1/8
    Backup OutInterface    :
    Stp Enable             : 0
    Mac Flapping           : 0   
    PW Last Up Time        : 2013/01/17 10:31:05
    PW Total Up Time       : 0 days, 0 hours, 17 minutes, 4 seconds

    # Configure CE1 (10.1.1.1) to ping CE2 (10.1.1.2). The ping is successful.

    [~CE1] ping 10.1.1.2
  PING 10.1.1.2: 56  data bytes, press CTRL_C to break
    Reply from 10.1.1.2: bytes=56 Sequence=1 ttl=255 time=90 ms
    Reply from 10.1.1.2: bytes=56 Sequence=2 ttl=255 time=77 ms
    Reply from 10.1.1.2: bytes=56 Sequence=3 ttl=255 time=34 ms
    Reply from 10.1.1.2: bytes=56 Sequence=4 ttl=255 time=46 ms
    Reply from 10.1.1.2: bytes=56 Sequence=5 ttl=255 time=94 ms
  --- 10.1.1.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 34/68/94 ms

Configuration Files

  • CE1 configuration file

    #
sysname CE1
#
interface GigabitEthernet0/1/0.1
 undo shutdown
 vlan-type dot1q 10
 ip address 10.1.1.1 255.255.255.0
#
return

  • CE2 configuration file

    #
sysname CE2
#
interface GigabitEthernet0/1/0.1
 undo shutdown
 vlan-type dot1q 10
 ip address 10.1.1.2 255.255.255.0
#
return

  • PE1 configuration file

    #
sysname PE1
#
mpls lsr-id 1.1.1.9
mpls
#
mpls l2vpn
#
vsi bgp1
 pwsignal bgp
  route-distinguisher 192.168.1.1:1
  vpn-target 100:1 import-extcommunity
  vpn-target 100:1 export-extcommunity
  site 1 range 5 default-offset 0
#
mpls ldp
#
interface GigabitEthernet0/1/0.1
 undo shutdown
 vlan-type dot1q 10
 l2 binding vsi bgp1
#
interface GigabitEthernet0/1/8
 undo shutdown
 ip address 192.168.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 1.1.1.9 255.255.255.255
#
bgp 100
 peer 3.3.3.9 as-number 100
 peer 3.3.3.9 connect-interface LoopBack1
 l2vpn-ad-family
  policy vpn-target
  peer 3.3.3.9 enable
  peer 3.3.3.9 signaling vpls
#
ospf 1
 area 0.0.0.0
  network 1.1.1.9 0.0.0.0
  network 192.168.1.0 0.0.0.255
#
return

  • P configuration file

    #
sysname P
#
mpls lsr-id 2.2.2.9
mpls
#
mpls ldp
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 192.168.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/8
 undo shutdown
 ip address 169.168.10.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 2.2.2.9 255.255.255.255
#
ospf 1
 area 0.0.0.0
  network 192.168.1.0 0.0.0.255
  network 169.168.10.0 0.0.0.255
  network 2.2.2.9 0.0.0.0
#
return

  • PE2 configuration file

    #
sysname PE2
#
mpls lsr-id 3.3.3.9
mpls
#
mpls l2vpn
#
vsi bgp1
 pwsignal bgp
  route-distinguisher 169.168.10.2:1
  vpn-target 100:1 import-extcommunity
  vpn-target 100:1 export-extcommunity
  site 2 range 5 default-offset 0
#
mpls ldp
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 169.168.10.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/8.1
 undo shutdown
 vlan-type dot1q 10
 l2 binding vsi bgp1
#
interface LoopBack1
 ip address 3.3.3.9 255.255.255.255
#
bgp 100
 peer 1.1.1.9 as-number 100
 peer 1.1.1.9 connect-interface LoopBack1
 l2vpn-ad-family
  policy vpn-target
  peer 1.1.1.9 enable
  peer 1.1.1.9 signaling vpls
#
ospf 1
 area 0.0.0.0
  network 3.3.3.9 0.0.0.0
  network 169.168.10.0 0.0.0.255
#
return
Parent Topic: Configuration Examples for VPLS
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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