Example for Configuring Inter-AS LDP VPWS Option C

Inter-AS LDP VPWS Option C applies to scenarios where each AS requires large numbers of inter-AS PWs. In inter-AS LDP VPWS Option C, PEs in different ASs establish single-segment PWs with each other; ASBRs do not need to create or maintain PWs and therefore will not hinder network expansion.

Networking Requirements

On the network shown in Figure 1, CE1 and CE2 access the MPLS backbone network through PE1 in AS100 and PE2 in AS200, respectively.

Inter-AS LDP VPWS Option C needs to be deployed for CE1 and CE2 to communicate.

Figure 1 Configuring inter-AS LDP VPWS Option C

Interfaces 1 and 2 in this example represent GE 0/1/0 and GE 0/1/8, respectively.

Configuration Roadmap

The configuration roadmap is as follows:

Configure an IGP for each AS on the MPLS backbone network to ensure IP connectivity within the same AS.
Configure basic MPLS functions on the MPLS backbone network and establish a dynamic LSP between the PE and ASBR in the same AS.
Establish an IBGP peer relationship between the PE and ASBR in the same AS and an EBGP peer relationship between ASBRs.
Configure routing policies and enable label-based routing on ASBRs.
Establish a remote MPLS LDP peer relationship between PE1 and PE2.
Establish an LDP VPWS PW between PE1 and PE2.

Data Preparation

To complete the configuration, you need the following data:

Peer IP addresses
Data for configuring the IGP
MPLS LSR IDs of PEs and ASBRs
L2VC IDs
Routing policies used by ASBRs

Procedure

Configure interface IP addresses.

# Configure CE1.

<HUAWEI> system-view
[~HUAWEI] sysname CE1
[*HUAWEI] commit
[~CE1] interface gigabitethernet 0/1/0
[*CE1-GigabitEthernet0/1/0] undo shutdown
[*CE1-GigabitEthernet0/1/0] ip address 10.1.1.1 24
[*CE1-GigabitEthernet0/1/0] quit
[*CE1] commit

# Configure PE1.

<HUAWEI> system-view
[~HUAWEI] sysname PE1
[*HUAWEI] commit
[~PE1] interface loopback1
[*PE1-Loopback1] ip address 1.1.1.1 32
[*PE1-Loopback1] quit
[*PE1] interface gigabitethernet 0/1/0
[*PE1-GigabitEthernet0/1/0.1] undo shutdown
[*PE1-GigabitEthernet0/1/0] quit
[*PE1] interface gigabitethernet 0/1/8
[*PE1-GigabitEthernet0/1/8] undo shutdown
[*PE1-GigabitEthernet0/1/8] ip address 10.10.1.1 24
[*PE1-GigabitEthernet0/1/8] quit
[*PE1] commit

# Configure ASBR1.

<HUAWEI> system-view
[~HUAWEI] sysname ASBR1
[*HUAWEI] commit
[~ASBR1] interface loopback1
[*ASBR1-Loopback1] ip address 2.2.2.2 32
[*ASBR1-Loopback1] quit
[*ASBR1] interface gigabitethernet 0/1/0
[*ASBR1-GigabitEthernet0/1/0] undo shutdown
[*ASBR1-GigabitEthernet0/1/0] ip address 10.10.1.2 24
[*ASBR1-GigabitEthernet0/1/0] quit
[*ASBR1] interface gigabitethernet 0/1/8
[*ASBR1-GigabitEthernet0/1/8] undo shutdown
[*ASBR1-GigabitEthernet0/1/8] ip address 10.20.1.1 24
[*ASBR1-GigabitEthernet0/1/8] quit
[*ASBR1] commit

# Configure ASBR2.

<HUAWEI> system-view
[~HUAWEI] sysname ASBR2
[*HUAWEI] commit
[~ASBR2] interface loopback1
[*ASBR2-Loopback1] ip address 3.3.3.3 32
[*ASBR2-Loopback1] quit
[*ASBR2] interface gigabitethernet 0/1/0
[*ASBR2-GigabitEthernet0/1/0] undo shutdown
[*ASBR2-GigabitEthernet0/1/0] ip address 10.20.1.2 24
[*ASBR2-GigabitEthernet0/1/0] quit
[*ASBR2] interface gigabitethernet 0/1/8
[*ASBR2-GigabitEthernet0/1/8] undo shutdown
[*ASBR2-GigabitEthernet0/1/8] ip address 10.30.1.1 24
[*ASBR2-GigabitEthernet0/1/8] quit
[*ASBR2] commit

# Configure PE2.

<HUAWEI> system-view
[~HUAWEI] sysname PE2
[*HUAWEI] commit
[~PE2] interface loopback1
[*PE2-Loopback1] ip address 4.4.4.4 32
[*PE2-Loopback1] quit
[*PE2] interface gigabitethernet 0/1/0
[*PE2-GigabitEthernet0/1/0] undo shutdown
[*PE2-GigabitEthernet0/1/0] ip address 10.30.1.1 24
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] interface gigabitethernet 0/1/8
[*PE2-GigabitEthernet0/1/8] undo shutdown
[*PE2-GigabitEthernet0/1/8] quit
[*PE2] commit

# Configure CE2.

<HUAWEI> system-view
[~HUAWEI] sysname CE2
[*HUAWEI] commit
[~CE2] interface gigabitethernet 0/1/0
[*CE2-GigabitEthernet0/1/0] undo shutdown
[*CE2-GigabitEthernet0/1/0] ip address 10.1.1.2 24
[*CE2-GigabitEthernet0/1/0] quit
[*CE2] commit

Configure an IGP on the MPLS backbone network.

# 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 10.10.1.0 0.0.0.255 
[*PE1-ospf-1-area-0.0.0.0] quit
[*PE1-ospf-1] quit
[*PE1] commit

# Configure ASBR1.

[~ASBR1] ospf 1
[*ASBR1-ospf-1] area 0.0.0.0
[*ASBR1-ospf-1-area-0.0.0.0] network 2.2.2.2 0.0.0.0
[*ASBR1-ospf-1-area-0.0.0.0] network 10.10.1.0 0.0.0.255
[*ASBR1-ospf-1-area-0.0.0.0] quit
[*ASBR1-ospf-1] quit
[*ASBR1] commit

# Configure ASBR2.

[*ASBR2] ospf 1
[*ASBR2-ospf-1] area 0.0.0.0
[*ASBR2-ospf-1-area-0.0.0.0] network 3.3.3.3 0.0.0.0
[*ASBR2-ospf-1-area-0.0.0.0] network 10.30.1.0 0.0.0.255
[*ASBR2-ospf-1-area-0.0.0.0] quit
[*ASBR2-ospf-1] quit
[*ASBR2] commit

# Configure PE2.

[~PE2] ospf 1
[*PE2-ospf-1] area 0.0.0.0
[*PE2-ospf-1-area-0.0.0.0] network 4.4.4.4 0.0.0.0
[*PE2-ospf-1-area-0.0.0.0] network 10.30.1.0 0.0.0.255
[*PE2-ospf-1-area-0.0.0.0] quit
[*PE2-ospf-1] quit
[*PE2] commit

Configure basic MPLS functions and establish LSPs.

# Configure PE1.

[~PE1] mpls lsr-id 1.1.1.1
[*PE1] mpls
[*PE1-mpls] quit
[*PE1] mpls ldp
[*PE1-mpls-ldp] quit
[*PE1] inerface gigabitethernet 0/1/8
[*PE1-GigabitEthernet0/1/8] mpls
[*PE1-GigabitEthernet0/1/8] mpls ldp
[*PE1-GigabitEthernet0/1/8] quit
[*PE1] commit

# Configure ASBR1.

[*ASBR1] mpls lsr-id 2.2.2.2
[*ASBR1] mpls
[*ASBR1-mpls] quit
[*ASBR1] mpls ldp
[*ASBR1-mpls-ldp] quit
[*ASBR1] inerface gigabitethernet 0/1/0
[*ASBR1-GigabitEthernet0/1/0] mpls
[*ASBR1-GigabitEthernet0/1/0] mpls ldp
[*ASBR1-GigabitEthernet0/1/0] quit
[*ASBR1] commit

# Configure ASBR2.

[~ASBR2] mpls lsr-id 3.3.3.3
[*ASBR2] mpls
[*ASBR2-mpls] quit
[*ASBR2] mpls ldp
[*ASBR2-mpls-ldp] quit
[*ASBR2] inerface gigabitethernet 0/1/8
[*ASBR2-GigabitEthernet0/1/8] mpls
[*ASBR2-GigabitEthernet0/1/8] mpls ldp
[*ASBR2-GigabitEthernet0/1/8] quit
[*ASBR2] commit

# Configure PE2.

[~PE2] mpls lsr-id 4.4.4.4
[*PE2] mpls
[*PE2-mpls] quit
[*PE2] mpls ldp
[*PE2-mpls-ldp] quit
[*PE2] inerface gigabitethernet 0/1/0
[*PE2-GigabitEthernet0/1/0] mpls
[*PE2-GigabitEthernet0/1/0] mpls ldp
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] commit

Enable inter-AS MPLS on ASBRs.

# Configure ASBR1.

[~ASBR1] inerface gigabitethernet 0/1/8
[*ASBR1-GigabitEthernet0/1/8] mpls
[*ASBR1-GigabitEthernet0/1/8] quit
[*ASBR1] commit

# Configure ASBR2.

[~ASBR2] inerface gigabitethernet 0/1/0
[*ASBR2-GigabitEthernet0/1/0] mpls
[*ASBR2-GigabitEthernet0/1/0] quit
[*ASBR2] commit

Establish an MP-IBGP peer relationship between the PE and ASBR in the same AS, establish an MP-EBGP peer relationship between ASBRs, and configure routing policies on ASBRs. These routing policies ensure that an ASBR reallocates MPLS labels to labeled IPv4 routes to be advertised to the local PE and allocates MPLS labels to routes to be advertised to the peer ASBR.

# Configure PE1.

[~PE1] bgp 100
[*PE1-bgp] peer 2.2.2.2 as-number 100
[*PE1-bgp] peer 2.2.2.2 label-route-capability
[*PE1-bgp] peer 2.2.2.2 connect-interface LoopBack 1
[*PE1-bgp] quit
[*PE1] commit

# Configure ASBR1.

[*ASBR1] route-policy policy1 permit node 1
[*ASBR1-route-policy] if-match mpls-label
[*ASBR1-route-policy] apply mpls-label
[*ASBR1-route-policy] quit
[*ASBR1] route-policy policy2 permit node 1
[*ASBR1-route-policy] apply mpls-label
[*ASBR1-route-policy] quit
[*ASBR1] bgp 100
[*ASBR1-bgp] network 1.1.1.1 255.255.255.255
[*ASBR1-bgp] peer 1.1.1.1 as-number 100
[*ASBR1-bgp] peer 1.1.1.1 route-policy policy1 export
[*ASBR1-bgp] peer 1.1.1.1 label-route-capability
[*ASBR1-bgp] peer 1.1.1.1 connect-interface loopback 1
[*ASBR1-bgp] peer 10.20.1.2 as-number 200
[*ASBR1-bgp] peer 10.20.1.2 route-policy policy2 export
[*ASBR1-bgp] peer 10.20.1.2 label-route-capability
[*ASBR1-bgp] peer 10.20.1.2 connect-interface gigabitethernet 0/1/8
[*ASBR1-bgp]quit
[*ASBR1]commit

# Configure ASBR2.

[*ASBR2] route-policy policy1 permit node 1
[*ASBR2-route-policy] if-match mpls-label
[*ASBR2-route-policy] apply mpls-label
[*ASBR2-route-policy] quit
[*ASBR2] route-policy policy2 permit node 1
[*ASBR2-route-policy] apply mpls-label
[*ASBR2-route-policy] quit
[*ASBR2] bgp 200
[*ASBR2-bgp] network 4.4.4.4 32
[*ASBR2-bgp] peer 4.4.4.4 as-number 200
[*ASBR2-bgp] peer 4.4.4.4 route-policy policy1 export
[*ASBR2-bgp] peer 4.4.4.4 label-route-capability
[*ASBR2-bgp] peer 4.4.4.4 connect-interface loopback 1
[*ASBR2-bgp] peer 10.20.1.1 as-number 100
[*ASBR2-bgp] peer 10.20.1.1 route-policy policy2 export
[*ASBR2-bgp] peer 10.20.1.1 label-route-capability
[*ASBR2-bgp] peer 10.20.1.1 connect-interface gigabitethernet 0/1/0
[*ASBR2-bgp] quit
[*ASBR2] commit

# Configure PE2.

[~PE2] bgp 200
[*PE2-bgp] peer 3.3.3.3 as-number 200
[*PE2-bgp] peer 3.3.3.3 label-route-capability
[*PE2-bgp] peer 3.3.3.3 connect-interface loopback 1
[*PE2-bgp] quit
[*PE2] commit

After completing the configurations, run the display bgp peer command on ASBR1 or ASBR2. The command output shows that the status of the IBGP session between the PE and ASBR in the same AS is Established, and the status of the EBGP session between ASBRs is also Established. The following example uses the command output on ASBR1.

[~ASBR1] display bgp peer
 BGP local router ID : 2.2.2.2
 Local AS number : 100
 Total number of peers : 2                 Peers in established state : 2
 Peer           V    AS  MsgRcvd  MsgSent  OutQ  Up/Down       State PrefRcv
 1.1.1.1        4   100      111      128     0 00:34:24 Established       0
 10.20.1.2      4   200       75       89     0 00:38:40 Established       1

Run the display tunnel-info all command on ASBR1 or ASBR2. The command output shows that a tunnel with the type being mpls local ifnet has been established. The following example uses the command output on ASBR1.

[~ASBR1] display tunnel-info all
Tunnel ID                     Type                Destination         Status
-----------------------------------------------------------------------------
0x0000000001004c4b42          ldp                 1.1.1.1             UP  
0x000000000c00030000          mpls local ifnet    10.20.1.2           UP

Establish an MP-EBGP peer relationship between PE1 and PE2.

# Configure PE1.

[~PE1] bgp 100
[*PE1-bgp] peer 4.4.4.4 as-number 200
[*PE1-bgp] peer 4.4.4.4 ebgp-max-hop 255
[*PE1-bgp] peer 4.4.4.4 connect-interface loopback 1
[*PE1-bgp] quit
[*PE1] commit

# Configure PE2.

[~PE2] bgp 200
[*PE2-bgp] peer 1.1.1.1 as-number 100
[*PE2-bgp] peer 1.1.1.1 ebgp-max-hop 255
[*PE2-bgp] peer 1.1.1.1 connect-interface loopback 1
[*PE2-bgp] quit
[*PE2] commit

Run the display tunnel-info all command on PE1 or PE2. The command output shows that an inter-AS LSP has been established between PE1 and PE2. The following example uses the command output on PE1.

[~PE1] display tunnel-info all
Tunnel ID                     Type                Destination         Status
-----------------------------------------------------------------------------
0x0000000001004c8b42          ldp                 2.2.2.2             UP  
0x000000000201040000          bgp                 4.4.4.4             UP

Establish a remote MPLS LDP session between PE1 and PE2.

# Configure PE1.

[~PE1] mpls ldp remote-peer 4.4.4.4
[*PE1-mpls-ldp-remote-4.4.4.4] remote-ip 4.4.4.4
[*PE1-mpls-ldp-remote-4.4.4.4] quit
[*PE1] commit

# Configure PE2.

[~PE2] mpls ldp remote-peer 1.1.1.1
[*PE2-mpls-ldp-remote-1.1.1.1] remote-ip 1.1.1.1
[*PE2-mpls-ldp-remote-1.1.1.1] quit
[*PE2] commit

After completing the configurations, run the display mpls ldp session command on PE1 or PE2. The command output shows that an LDP session has been established between PE1 and PE2 and Status is Operational.

The following example uses the command output on PE1.

[~PE1] display mpls ldp session
 LDP Session(s) in Public Network
 Codes: LAM(Label Advertisement Mode), SsnAge Unit(DDDD:HH:MM)
 An asterisk (*) before a session means the session is being deleted.
 ------------------------------------------------------------------------------
 PeerID             Status       LAM  SsnRole  SsnAge      KASent/Rcv
 ------------------------------------------------------------------------------
 2.2.2.2:0          Operational  DU   Passive  000:00:21   87/87
 4.4.4.4:0          Operational DU   Passive  000:00:18   75/75
 ------------------------------------------------------------------------------
 TOTAL: 2 session(s) Found.

Configure an LDP VPWS PW between PE1 and PE2.

# Configure PE1.

[~PE1] mpls l2vpn
[*PE1-l2vpn] quit
[*PE1] interface gigabitethernet 0/1/0
[*PE1-GigabitEthernet0/1/0] mpls l2vc 4.4.4.4 100
[*PE1-GigabitEthernet0/1/0] undo shutdown
[*PE1-GigabitEthernet0/1/0] quit
[*PE1] commit

# Configure PE2.

[~PE2] mpls l2vpn
[*PE2-l2vpn] quit
[*PE2] interface gigabitethernet 0/1/8
[*PE2-GigabitEthernet0/1/8] mpls l2vc 1.1.1.1 100
[*PE2-GigabitEthernet0/1/8] undo shutdown
[*PE2-GigabitEthernet0/1/8] quit
[*PE2] commit

Verify the configuration.

After completing the configurations, run the display mpls l2vc command on PE1 or PE2. The command output shows that a PW has been established and VC state is up. The following example uses the command output on PE1.

<~PE1> display mpls l2vc interface gigabitethernet 0/1/0
*client interface       : GigabitEthernet0/1/0 is up
 Administrator PW             : no
 session state                : up
 AC status                    : up
 VC state                     : up
 Label state                  : 0
 Token state                  : 0
 VC ID                        : 100
 VC type                      : VLAN
 destination                  : 4.4.4.4
 local group ID               : 0         remote group ID      : 0
 local VC label               : 18        remote VC label      : 18
 local AC OAM State           : up
 local PSN OAM State          : up
 local forwarding state       : forwarding
 local status code            : 0x0 (forwarding)
 remote AC OAM State          : up
 remote PSN OAM state         : up
 remote forwarding state      : forwarding
 remote status code           : 0x0 (forwarding)
 ignore standby state         : no
 Dynamic BFD for PW           : enable
 Detect Multipier             : 3
 Min Transit Interval         : 1000
 Min Receive Interval         : 1000
 Dynamic BFD Session          : built
 BFD for PW                   : available
   BFD sessionIndex           : --  BFD state : up
 VCCV State                   : --
 manual fault                 : not set
 active state                 : active
 forwarding entry             : exist
 OAM Protocol                 : --
 OAM Status                   : --
 OAM Fault Type               : --
 PW APS ID                    : --
 PW APS Status                : --
 TTL Value                    : 1
 link state                   : up
 local VC MTU                 : 1500      remote VC MTU        : 1500
 local VCCV                   : alert ttl lsp-ping bfd
 remote VCCV                  : alert ttl lsp-ping bfd
 local control word           : disable   remote control word  : disable
 tunnel policy name           : --
 PW template name             : --
 primary or secondary         : primary
 load balance type            : flow
 Access-port                  : false
 Switchover Flag              : false
 VC tunnel info               : 1 tunnels
    NO.0 TNL type             : ldp, TNL ID : 0x0000000001004c4b43
 create time                  : 0 days, 1 hours, 2 minutes, 56 seconds
 up time                      : 0 days, 1 hours, 1 minutes, 48 seconds
 last change time             : 0 days, 1 hours, 1 minutes, 48 seconds
 VC last up time              : 2012/12/05 02:50:41
 VC total up time             : 0 days, 1 hours, 1 minutes, 48 seconds
 CKey                         : 1
 NKey                         : 1493172332
 L2VPN QoS CIR value          : 3888
 L2VPN QoS PIR value          : 3888
 L2VPN QoS qos-profile name   : --
 PW redundancy mode           : frr
 AdminPw interface            : --
 AdminPw link state           : --
 Forward state                : send inactive, receive inactive 
 Diffserv Mode                : uniform
 Service Class                : --
 Color                        : --
 DomainId                     : --
 Domain Name                  : --

CE1 and CE2 can ping each other. The following example uses the command output on CE1.

[~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=430 ms
    Reply from 10.1.1.2: bytes=56 Sequence=2 ttl=255 time=220 ms
    Reply from 10.1.1.2: bytes=56 Sequence=3 ttl=255 time=190 ms
    Reply from 10.1.1.2: bytes=56 Sequence=4 ttl=255 time=190 ms
    Reply from 10.1.1.2: bytes=56 Sequence=5 ttl=255 time=190 ms

  --- 10.1.1.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 190/244/430 ms

Configuration Files

CE1 configuration file

#
sysname CE1
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.1.1.1 255.255.255.0
#
return

PE1 configuration file

#
sysname PE1
#
mpls lsr-id 1.1.1.1
#
mpls
#
mpls l2vpn
#
mpls ldp
#
mpls ldp remote-peer 4.4.4.4
 remote-ip 4.4.4.4
#
interface GigabitEthernet0/1/0
 undo shutdown
 mpls l2vc 4.4.4.4 100
#
interface GigabitEthernet0/1/8
 undo shutdown
 ip address 10.10.1.1 255.255.255.0
 mpls
 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 4.4.4.4 as-number 200
 peer 4.4.4.4 ebgp-max-hop 255
 peer 4.4.4.4 connect-interface LoopBack1
 #              
 ipv4-family unicast
  undo synchronization
  peer 2.2.2.2 enable
  peer 2.2.2.2 label-route-capability  
  peer 4.4.4.4 enable
#
ospf 1
 area 0.0.0.0
  network 1.1.1.1 0.0.0.0
  network 10.10.1.0 0.0.0.255
#
return

ASBR1 configuration file

#
sysname ASBR1
#
mpls lsr-id 2.2.2.2
#
mpls
#
mpls ldp
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.10.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/8
 undo shutdown
 ip address 10.20.1.1 255.255.255.0
 mpls
#
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
 peer 10.20.1.2 as-number 200
 peer 10.20.1.2 connect-interface GigabitEthernet0/1/8
#
ipv4-family unicast
 undo synchronization
 network 1.1.1.1 255.255.255.255
 peer 1.1.1.1 enable
 peer 1.1.1.1 route-policy policy1 export
 peer 1.1.1.1 label-route-capability
 peer 10.20.1.2 enable
 peer 10.20.1.2 route-policy policy2 export
 peer 10.20.1.2 label-route-capability
#
route-policy policy1 permit node 1
 if-match mpls-label
 apply mpls-label
#
route-policy policy2 permit node 1
 apply mpls-label
#
ospf 1
 area 0.0.0.0
  network 2.2.2.2 0.0.0.0
  network 10.10.1.0 0.0.0.255
#
return

ASBR2 configuration file

#
sysname ASBR2
#
mpls lsr-id 3.3.3.3
#
mpls
#
mpls ldp
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.20.1.2 255.255.255.0
 mpls
#interface GigabitEthernet0/1/8
 undo shutdown
 ip address 10.30.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 3.3.3.3 255.255.255.255
#
bgp 200
 peer 4.4.4.4 as-number 200
 peer 4.4.4.4 connect-interface LoopBack1
 peer 10.20.1.1 as-number 100
 peer 10.20.1.1 connect-interface GigabitEthernet0/1/0
#
ipv4-family unicast
 undo synchronization
 network 4.4.4.4 255.255.255.255
 peer 4.4.4.4 enable
 peer 4.4.4.4 route-policy policy1 export
 peer 4.4.4.4 label-route-capability
 peer 10.20.1.1 enable
 peer 10.20.1.1 route-policy policy2 export
 peer 10.20.1.1 label-route-capability
#
route-policy policy1 permit node 1
 if-match mpls-label
 apply mpls-label
#
route-policy policy2 permit node 1
 apply mpls-label
#
ospf 1
 area 0.0.0.0
  network 3.3.3.3 0.0.0.0
  network 10.30.1.0 0.0.0.255
#
return

PE2 configuration file

#
sysname PE2
#
mpls lsr-id 4.4.4.4
#
mpls
#
mpls l2vpn
#
mpls ldp
#
mpls ldp remote-peer 1.1.1.1
 remote-ip 1.1.1.1
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.30.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/8
 undo shutdown
 mpls l2vc 1.1.1.1 100
#
interface LoopBack1
 ip address 4.4.4.4 255.255.255.255
#
bgp 200         
 peer 1.1.1.1 as-number 100
 peer 1.1.1.1 ebgp-max-hop 255
 peer 1.1.1.1 connect-interface LoopBack1
 peer 3.3.3.3 as-number 200
 peer 3.3.3.3 connect-interface LoopBack1
 #              
 ipv4-family unicast
  undo synchronization
  peer 1.1.1.1 enable
  peer 3.3.3.3 enable
  peer 3.3.3.3 label-route-capability  
#
ospf 1
 area 0.0.0.0
  network 4.4.4.4 0.0.0.0
  network 10.30.1.0 0.0.0.255
#
return

CE2 configuration file

#
sysname CE2
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.1.1.2 255.255.255.0
#
return