BGP PW configuration example
Network requirements
Create BGP PWs among PEs so CEs in different sites of VPN 1 can communicate with each other.
Figure 86: Network diagram
Configuration procedure
Configure the IGP and public tunnels. (Details not shown.)
Configure PE 1:
# Configure basic MPLS.
<PE1> system-view [PE1] interface loopback 0 [PE1-LoopBack0] ip address 1.1.1.9 32 [PE1-LoopBack0] quit [PE1] mpls lsr-id 1.1.1.9 [PE1] mpls ldp [PE1-ldp] quit
# Establish IBGP connections to PE 2 and PE 3 and use BGP to advertise VPLS label block information.
[PE1] bgp 100 [PE1-bgp] peer 2.2.2.9 as-number 100 [PE1-bgp] peer 2.2.2.9 connect-interface loopback 0 [PE1-bgp] peer 3.3.3.9 as-number 100 [PE1-bgp] peer 3.3.3.9 connect-interface loopback 0 [PE1-bgp] address-family l2vpn [PE1-bgp-l2vpn] peer 2.2.2.9 enable [PE1-bgp-l2vpn] peer 3.3.3.9 enable [PE1-bgp-l2vpn] quit [PE1-bgp] quit
# Enable L2VPN.
[PE1] l2vpn enable
# Configure the VSI aaa to use BGP to establish BGP PWs to PE 2 and PE 3.
[PE1] vsi aaa [PE1-vsi-aaa] auto-discovery bgp [PE1-vsi-aaa-auto] route-distinguisher 1:1 [PE1-vsi-aaa-auto] vpn-target 1:1 [PE1-vsi-aaa-auto] signaling-protocol bgp [PE1-vsi-aaa-auto-bgp] site 1 range 10 default-offset 0 [PE1-vsi-aaa-auto-bgp] quit [PE1-vsi-aaa-auto] quit [PE1-vsi-aaa] quit
# Create service instance 10 on Ten-GigabitEthernet 1/0/1 to match all packets.
[PE1] interface ten-gigabitethernet1/0/1 [PE1-Ten-GigabitEthernet1/0/1] service-instance 10 [PE1-Ten-GigabitEthernet1/0/1-srv10] encapsulation default
# Bind service instance 10 to the VSI aaa.
[PE1-Ten-GigabitEthernet1/0/1-srv10] xconnect vsi aaa
Configure PE 2:
# Configure basic MPLS.
<PE2> system-view [PE2] interface loopback 0 [PE2-LoopBack0] ip address 2.2.2.9 32 [PE2-LoopBack0] quit [PE2] mpls lsr-id 2.2.2.9 [PE2] mpls ldp [PE2-ldp] quit
# Establish IBGP connections to PE 2 and PE 3 and use BGP to advertise VPLS label block information.
[PE2] bgp 100 [PE2-bgp] peer 1.1.1.9 as-number 100 [PE2-bgp] peer 1.1.1.9 connect-interface loopback 0 [PE2-bgp] peer 3.3.3.9 as-number 100 [PE2-bgp] peer 3.3.3.9 connect-interface loopback 0 [PE2-bgp] address-family l2vpn [PE2-bgp-l2vpn] peer 1.1.1.9 enable [PE2-bgp-l2vpn] peer 3.3.3.9 enable [PE2-bgp-l2vpn] quit [PE2-bgp] quit
# Enable L2VPN.
[PE2] l2vpn enable
# Configure the VSI aaa to use BGP to establish BGP PWs to PE 1 and PE 3.
[PE2] vsi aaa [PE2-vsi-aaa] auto-discovery bgp [PE2-vsi-aaa-auto] route-distinguisher 1:1 [PE2-vsi-aaa-auto] vpn-target 1:1 [PE2-vsi-aaa-auto] signaling-protocol bgp [PE2-vsi-aaa-auto-bgp] site 2 range 10 default-offset 0 [PE2-vsi-aaa-auto-bgp] quit [PE2-vsi-aaa-auto] quit [PE2-vsi-aaa] quit
# Create service instance 10 on Ten-GigabitEthernet 1/0/1 to match all packets.
[PE2] interface ten-gigabitethernet1/0/1 [PE2-Ten-GigabitEthernet1/0/1] service-instance 10 [PE2-Ten-GigabitEthernet1/0/1-srv10] encapsulation default
# Bind service instance 10 to the VSI aaa.
[PE2-Ten-GigabitEthernet1/0/1-srv10] xconnect vsi aaa
Configure PE 3:
# Configure basic MPLS.
<PE3> system-view [PE3] interface loopback 0 [PE3-LoopBack0] ip address 3.3.3.9 32 [PE3-LoopBack0] quit [PE3] mpls lsr-id 3.3.3.9 [PE3] mpls ldp [PE3-ldp] quit
# Establish IBGP connections to PE 1 and PE 2 and use BGP to advertise VPLS label block information.
[PE3] bgp 100 [PE3-bgp] peer 1.1.1.9 as-number 100 [PE3-bgp] peer 1.1.1.9 connect-interface loopback 0 [PE3-bgp] peer 2.2.2.9 as-number 100 [PE3-bgp] peer 2.2.2.9 connect-interface loopback 0 [PE3-bgp] address-family l2vpn [PE3-bgp-l2vpn] peer 1.1.1.9 enable [PE3-bgp-l2vpn] peer 2.2.2.9 enable [PE3-bgp-l2vpn] quit [PE3-bgp] quit
# Enable L2VPN.
[PE3] l2vpn enable
# Configure the VSI aaa to use BGP to establish BGP PWs to PE 1 and PE 2.
[PE3] vsi aaa [PE3-vsi-aaa] auto-discovery bgp [PE3-vsi-aaa-auto] route-distinguisher 1:1 [PE3-vsi-aaa-auto] vpn-target 1:1 [PE3-vsi-aaa-auto] signaling-protocol bgp [PE3-vsi-aaa-auto-bgp] site 3 range 10 default-offset 0 [PE3-vsi-aaa-auto-bgp] quit [PE3-vsi-aaa-auto] quit [PE3-vsi-aaa] quit
# Create service instance 10 on Ten-GigabitEthernet 1/0/1 to match all packets.
[PE3] interface ten-gigabitethernet1/0/1 [PE3-Ten-GigabitEthernet1/0/1] service-instance 10 [PE3-Ten-GigabitEthernet1/0/1-srv10] encapsulation default
# Bind service instance 10 to the VSI aaa.
[PE3-Ten-GigabitEthernet1/0/1-srv10] xconnect vsi aaa
Verifying the configuration
# Execute the display l2vpn pw verbose command on PE 1. The output shows that two BGP PWs have been established.
[PE1] display l2vpn pw verbose
VSI Name: aaa
Peer: 2.2.2.9 Remote Site: 2
Signaling Protocol : BGP
Link ID : 9 PW State : Up
In Label : 131195 Out Label: 131225
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x1800000160000001
Tunnel NHLFE IDs : 137
Peer: 3.3.3.9 Remote Site: 3
Signaling Protocol : BGP
Link ID : 10 PW State : Up
In Label : 131196 Out Label: 131225
MTU : 1500
PW Attributes : Main
VCCV CC : -
VCCV BFD : -
Tunnel Group ID : 0x1800000060000000
Tunnel NHLFE IDs : 136
# Execute the display l2vpn bgp verbose command on PE 1 to view VPLS label block information received from PE 2 and PE 3.
[PE1] display l2vpn bgp verbose VSI Name: aaa Remote Site ID : 2 Offset : 0 RD : 1:1 PW State : Up Encapsulation : BGP-VPLS MTU : 1500 Nexthop : 2.2.2.9 Local VC Label : 131195 Remote VC Label : 131225 Link ID : 9 Local Label Block : 131193/10/0 Remote Label Block : 131224/10/0 Export Route Target: 1:1 Remote Site ID : 3 Offset : 0 RD : 1:1 PW State : Up Encapsulation : BGP-VPLS MTU : 1500 Nexthop : 3.3.3.9 Local VC Label : 131196 Remote VC Label : 131225 Link ID : 10 Local Label Block : 131193/10/0 Remote Label Block : 131224/10/0 Export Route Target: 1:1