Typical L2VPN-Kompella Configuration

Typical L2VPN-Kompella Configuration

[Requirements]

Set up a local L2VPN connection between the S2/0/0 of CE-A and the S2/0/0 of CE-B, and a remote L2VPN connection between the S2/0/1 of CE-A and the S2/0/0 of CE-C.

[Networking diagram]

[Configuration script]

Configuration script (CE-A)

# sysname CE-A # radius scheme system # domain system # interface Serial2/0/0 link-protocol ppp ip address 192.168.11.1 255.255.255.0 # interface Serial2/0/1 link-protocol ppp ip address 192.168.21.1 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

Configuration script (CE-B)

# sysname CE-B # radius scheme system # domain system # interface Serial2/0/0 link-protocol ppp ip address 192.168.11.2 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

Configuration script (PE-A)

# sysname PE-A # router id 1.1.1.1 # mpls lsr-id 1.1.1.1 # mpls l2vpn               /Enable MPLS L2VPN/ # # radius scheme system # mpls # mpls ldp # domain system # interface Serial2/0/0 link-protocol ppp # interface Serial2/0/1 link-protocol ppp # interface Serial2/0/2 link-protocol ppp # interface Serial2/0/3 link-protocol ppp ip address 10.0.0.1 255.255.255.252 mpls mpls ldp enable # interface NULL0 # interface LoopBack0 ip address 1.1.1.1 255.255.255.255 # bgp 100 undo synchronization group inter internal peer 3.3.3.3 group inter                 /Set up BGP neighbor with PE-B/ peer 3.3.3.3 connect-interface LoopBack0 # l2vpn-family                             /Create the L2VPN address family/ peer inter enable                        /Enable peer inter/ # ospf 1 area 0.0.0.0 network 1.1.1.1 0.0.0.0 network 10.0.0.0 0.0.0.3 # mpls l2vpn vpna encapsulation ppp       /Create the VPN instance vpna, and set the encapsulation mode to PPP/ route-distinguisher 100:1               /RD=100:1/ vpn-target 100:1 import-extcommunity    /RT=100:1/ vpn-target 100:1 export-extcommunity mtu 1500 ce ce-a id 1 range 10 default-offset 0            /Create ce-a/ connection ce-offset 3 interface Serial2/0/1 /Configure a remote connection to CE-C/ connection ce-offset 2 interface Serial2/0/0 /Configure a local connection to CE-B/ ce ce-b id 2 range 10 default-offset 0           /Create ce-b/ connection ce-offset 1 interface Serial2/0/2    /Configure a local connection to CE-A/ # # user-interface con 0 user-interface vty 0 4 # return

Configuration script (P)

# sysname P # router id 2.2.2.2 # mpls lsr-id 2.2.2.2 # radius scheme system # mpls # mpls ldp # domain system # interface Serial2/0/0 link-protocol ppp ip address 10.0.0.2 255.255.255.252 mpls mpls ldp enable # interface Serial2/0/1 link-protocol ppp ip address 10.0.0.5 255.255.255.252 mpls mpls ldp enable # interface NULL0 # interface LoopBack0 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 10.0.0.0 0.0.0.3 network 10.0.0.4 0.0.0.3 # user-interface con 0 user-interface vty 0 4 # return

Configuration script (PE-B)

# sysname PE-B # router id 3.3.3.3 # mpls lsr-id 3.3.3.3 # mpls l2vpn              /Enable MPLS L2VPN/ # # radius scheme system # mpls # mpls ldp # domain system # interface Serial2/0/0 link-protocol ppp ip address 10.0.0.6 255.255.255.252 mpls mpls ldp enable # interface Serial2/0/1 link-protocol ppp # interface NULL0 # interface LoopBack0 ip address 3.3.3.3 255.255.255.255 # bgp 100 undo synchronization group inter internal peer 1.1.1.1 group inter                  /Set up BGP neighbor with PE-A/ peer 1.1.1.1 connect-interface LoopBack0 # l2vpn-family                              /Create the L2VPN address family/ peer inter enable                         /Enable peer inter/ # ospf 1 area 0.0.0.0 network 3.3.3.3 0.0.0.0 network 10.0.0.4 0.0.0.3 # mpls l2vpn vpna encapsulation ppp        /Create the VPN instance vpna, and set the encapsulation mode to PPP/ route-distinguisher 100:1                /RD=100:1/ vpn-target 100:1 import-extcommunity     /RT=100:1/ vpn-target 100:1 export-extcommunity mtu 1500 ce ce-c id 3 range 10 default-offset 0         /Create ce-c/ connection ce-offset 1 interface Serial2/0/1   /Configure a remote connection to CE-A/ # # user-interface con 0 user-interface vty 0 4 # return

Configuration script (CE-C)

# sysname CE-C # radius scheme system # domain system # interface Serial2/0/0 link-protocol ppp ip address 192.168.21.2 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

 

[Verification]

Display the L2VPN connection state on PE-A:

<PE-A>disp mpls l2vpn connection                                               

total connections: 3,                                                           

connections: 3 up, 0 down, 2 local, 1 remote, 0 unknown                        

                                                                               

VPN-Instance Name: vpna,                                                        

total connections: 3,                                                          

connections: 3 up, 0 down, 2 local, 1 remote, 0 unknown                        

                                                                               

  CE Name: ce-a, id: 1,                                                        

  Rid type status peer-id         route-distinguisher   intf                   

  3   rmt  up     3.3.3.3         100:1                 Serial2/0/1            

  2   loc  up     ---             ---                   Serial2/0/0            

                                                                               

  CE Name: ce-b, id: 2,                                                        

  Rid type status peer-id         route-distinguisher   intf                   

  1   loc  up     ---             ---                   Serial2/0/2 

 

 

Display the L2VPN connection state on PE-B:

<PE-B>disp mpls l2vpn connection                                               

total connections: 1,                                                           

connections: 1 up, 0 down, 0 local, 1 remote, 0 unknown                        

                                                                               

VPN-Instance Name: vpna,                                                        

total connections: 1,                                                          

connections: 1 up, 0 down, 0 local, 1 remote, 0 unknown                        

                                                                               

  CE Name: ce-c, id: 3,                                                        

  Rid type status peer-id         route-distinguisher   intf                   

  1   rmt  up     1.1.1.1         100:1                 Serial2/0/1