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C

HAPTER

 51: MPLS VLL

[PE-P] mpls lsr-id 192.1.1.3

 

[PE-P] mpls

 

[PE-P-mpls] quit

 

[PE-P] mpls ldp

 

[PE-P] mpls l2vpn 

# Configure an IP address for the Loopback interface, which is used as the LSR ID.

[PE-P] interface loopback 0

 

[PE-P-LoopBack0] ip address 192.1.1.3 255.255.255.255

 

[PE-P-LoopBack0] quit 

# Configure the VLAN interface.

[PE-P] vlan 21

 

[PE-P-vlan21] port gigabitethernet 2/1/1

 

[PE-P-vlan21] quit

 

[PE-P] interface Vlan-interface 21

 

[PE-P-Vlan-interface21] mpls

 

[PE-P-Vlan-interface21] mpls ldp enable

 

[PE-P-Vlan-interface21] ip address 168.1.1.2 255.255.0.0

 

[PE-P-Vlan-interface21] quit

 

[PE-P] vlan 22

 

[PE-P-vlan22 port gigabitethernet 2/1/2

 

[PE-P-vlan22] quit

 

[PE-P] interface Vlan-interface 22

 

[PE-P-Vlan-interface22] mpls

 

[PE-P-Vlan-interface22] mpls ldp enable

 

[PE-P-Vlan-interface22] ip address 169.1.1.2 255.255.0.0 

# Enable OSPF.

[PE-P] ospf 1

 

[PE-P-ospf-1] area 0.0.0.0

 

[PE-P-ospf-1-area-0.0.0.0] network 168.1.0.0 0.0.255.255

 

[PE-P-ospf-1-area-0.0.0.0] network 169.1.0.0 0.0.255.255

 

[PE-P-ospf-1-area-0.0.0.0] network 192.1.1.3 0.0.0.0 

c 

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The interfaces of the two CE are physically up.

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Two LSP tunnels, which are opposite in direction, exist between two PEs.

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The encapsulation types of interfaces of the two CEs are the same and are 
supported by the MPLS L2VPN.

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It is recommended that the VLANs on PEA and PEB which are connected to the 
CEs be consistent.

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LDP remote sessions exist between PEs and are in Operational state.

To establish a tunnel, routes to the peer PE are necessary. So you need to configure 
IGP (interior gateway protocol) on each router along the path, such as OSPF.