H-VPLS UPE dual homing configuration example
Network requirements
To improve reliability of the H-VPLS network, the UPE establishes a U-PW with NPE 1 and NPE 2. The U-PW between UPE and NPE 1 is the primary PW and that between UPE and NPE 2 is the backup PW. The backup PW works only when the primary PW fails.
The H-VPLS uses LDP as the PW signaling protocol.
Figure 128: Network diagram
Configuration procedure
Configure an IGP and public tunnels on each PE. (Details not shown.)
Configure UPE:
# Configure basic MPLS.
<UPE> system-view [UPE] interface loopback 0 [UPE-LoopBack0] ip address 1.1.1.1 32 [UPE-LoopBack0] quit [UPE] mpls lsr-id 1.1.1.1 [UPE] mpls ldp [UPE-ldp] quit
# Enable L2VPN.
[UPE] l2vpn enable
# Configure VSI aaa that uses LDP as the PW signaling protocol, and establish the primary PW to NPE 1 and the backup PW to NPE 2.
[UPE] vsi aaa [UPE-vsi-aaa] pwsignaling ldp [UPE-vsi-aaa-ldp] peer 2.2.2.2 pw-id 500 [UPE-vsi-aaa-ldp-2.2.2.2-500] backup-peer 3.3.3.3 pw-id 500 [UPE-vsi-aaa-ldp-3.3.3.3-500-backup] quit [UPE-vsi-aaa-ldp-2.2.2.2-500] quit [UPE-vsi-aaa-ldp] quit [UPE-vsi-aaa] quit
# Bind the CE 1-facing Layer 3 Ethernet interface GigabitEthernet 2/1/1 to VSI aaa.
[UPE] interface gigabitethernet 2/1/1 [UPE-GigabitEthernet2/1/1] xconnect vsi aaa [UPE-GigabitEthernet2/1/1] quit
# Bind the CE 2-facing Layer 3 Ethernet interface GigabitEthernet 2/1/2 to VSI aaa.
[UPE] interface gigabitethernet 2/1/2 [UPE-GigabitEthernet2/1/2] xconnect vsi aaa [UPE-GigabitEthernet2/1/2] quit
Configure NPE 1:
# Configure basic MPLS.
<NPE1> system-view [NPE1] interface loopback 0 [NPE1-LoopBack0] ip address 2.2.2.2 32 [NPE1-LoopBack0] quit [NPE1] mpls lsr-id 2.2.2.2 [NPE1] mpls ldp [NPE1–ldp] quit
# Enable L2VPN.
[NPE1] l2vpn enable
# Configure VSI aaa that uses LDP as the PW signaling protocol, and establish PWs to UPE, NPE 2, and NPE 3.
[NPE1] vsi aaa [NPE1-vsi-aaa] pwsignaling ldp [NPE1-vsi-aaa-ldp] peer 1.1.1.1 pw-id 500 no-split-horizon [NPE1-vsi-aaa-ldp-1.1.1.1-500] quit [NPE1-vsi-aaa-ldp] peer 3.3.3.3 pw-id 500 [NPE1-vsi-aaa-ldp-3.3.3.3-500] quit [NPE1-vsi-aaa-ldp] peer 4.4.4.4 pw-id 500 [NPE1-vsi-aaa-ldp-4.4.4.4-500] quit [NPE1-vsi-aaa-ldp] quit [NPE1-vsi-aaa] quit
Configure NPE 2:
# Configure basic MPLS.
<NPE2> system-view [NPE2] interface loopback 0 [NPE2-LoopBack0] ip address 3.3.3.3 32 [NPE2-LoopBack0] quit [NPE2] mpls lsr-id 3.3.3.3 [NPE2] mpls ldp [NPE2–ldp] quit
# Enable L2VPN.
[NPE2] l2vpn enable
# Configure VSI aaa that uses LDP as the PW signaling protocol, and establish PWs to UPE, NPE 1, and NPE 3.
[NPE2] vsi aaa [NPE2-vsi-aaa] pwsignaling ldp [NPE2-vsi-aaa-ldp] peer 1.1.1.1 pw-id 500 no-split-horizon [NPE2-vsi-aaa-ldp-1.1.1.1-500] quit [NPE2-vsi-aaa-ldp] peer 2.2.2.2 pw-id 500 [NPE2-vsi-aaa-ldp-2.2.2.2-500] quit [NPE2-vsi-aaa-ldp] peer 4.4.4.4 pw-id 500 [NPE2-vsi-aaa-ldp-4.4.4.4-500] quit [NPE2-vsi-aaa-ldp] quit [NPE2-vsi-aaa] quit
Configure NPE 3:
# Configure basic MPLS.
<NPE3> system-view [NPE3] interface loopback 0 [NPE3-LoopBack0] ip address 4.4.4.4 32 [NPE3-LoopBack0] quit [NPE3] mpls lsr-id 4.4.4.4 [NPE3] mpls ldp [NPE3–ldp] quit
# Enable L2VPN.
[NPE3] l2vpn enable
# Configure VSI aaa that uses LDP as the PW signaling protocol, and establish PWs to NPE 1 and NPE 2.
[NPE3] vsi aaa [NPE3-vsi-aaa] pwsignaling ldp [NPE3-vsi-aaa-ldp] peer 2.2.2.2 pw-id 500 [NPE3-vsi-aaa-ldp-2.2.2.2-500] quit [NPE3-vsi-aaa-ldp] peer 3.3.3.3 pw-id 500 [NPE3-vsi-aaa-ldp-3.3.3.3-500] quit [NPE3-vsi-aaa-ldp] quit [NPE3-vsi-aaa] quit
# Bind Layer 3 Ethernet interface GigabitEthernet 2/1/1 to VSI aaa.
[NPE3] interface gigabitethernet 2/1/1 [NPE3-GigabitEthernet2/1/1] xconnect vsi aaa [NPE3-GigabitEthernet2/1/1] quit
Verifying the configuration
# Verify that PWs in up state have been established on each PE.
[UPE] display l2vpn pw verbose
VSI Name: aaa
Peer: 2.2.2.2 PW ID: 500
Signaling Protocol : LDP
Link ID : 8 PW State : Up
In Label : 1151 Out Label: 1279
Wait to Restore Time: 0 sec
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x260000002
Tunnel NHLFE IDs : 1027
Peer: 3.3.3.3 PW ID: 500
Signaling Protocol : LDP
Link ID : 8 PW State : Blocked
In Label : 1150 Out Label: 1279
MTU : 1500
PW Attributes : Backup
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x360000003
Tunnel NHLFE IDs : 1025
[NPE1] display l2vpn pw verbose
VSI Name: aaa
Peer: 1.1.1.1 PW ID: 500
Signaling Protocol : LDP
Link ID : 8 PW State : Up
In Label : 1279 Out Label: 1151
MTU : 1500
PW Attributes : Main, No-split-horizon
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x60000000
Tunnel NHLFE IDs : 1026
Peer: 3.3.3.3 PW ID: 500
Signaling Protocol : LDP
Link ID : 9 PW State : Up
In Label : 1280 Out Label: 1290
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x160000005
Tunnel NHLFE IDs : 1027
Peer: 4.4.4.4 PW ID: 500
Signaling Protocol : LDP
Link ID : 10 PW State : Up
In Label : 1278 Out Label: 1279
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x160000001
Tunnel NHLFE IDs : 1028
[NPE2] display l2vpn pw verbose
VSI Name: aaa
Peer: 1.1.1.1 PW ID: 500
Signaling Protocol : LDP
Link ID : 8 PW State : Up
In Label : 1279 Out Label: 1150
MTU : 1500
PW Attributes : Main, No-split-horizon
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x60000000
Tunnel NHLFE IDs : 1026
Peer: 2.2.2.2 PW ID: 500
Signaling Protocol : LDP
Link ID : 9 PW State : Up
In Label : 1290 Out Label: 1280
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x160000008
Tunnel NHLFE IDs : 1027
Peer: 4.4.4.4 PW ID: 500
Signaling Protocol : LDP
Link ID : 10 PW State : Up
In Label : 1278 Out Label: 1278
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x160000001
Tunnel NHLFE IDs : 1028
[NPE3] display l2vpn pw verbose
VSI Name: aaa
Peer: 2.2.2.2 PW ID: 500
Signaling Protocol : LDP
Link ID : 8 PW State : Up
In Label : 1279 Out Label: 1278
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x60000000
Tunnel NHLFE IDs : 1026
Peer: 3.3.3.3 PW ID: 500
Signaling Protocol : LDP
Link ID : 9 PW State : Up
In Label : 1278 Out Label: 1278
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x160000001
Tunnel NHLFE IDs : 1027