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Area 0.0.0.0 interface 172.1.1.1(POS5/1/1)'s neighbors
Router ID: 2.2.2.9
State: Full
DR: 172.1.1.1
Dead timer due in 38
Neighbor is up for 00:02:44
Authentication Sequence: [ 0 ]
Neighbor state change count: 5
Configure basic MPLS and MPLS LDP on the MPLS backbone to establish LDP LSPs.
2.
# Configure PE 1.
[PE1] mpls lsr-id 1.1.1.9
[PE1] mpls
[PE1-mpls] quit
[PE1] mpls ldp
[PE1-mpls-ldp] quit
[PE1] interface pos 5/1/1
[PE1-POS5/1/1] mpls
[PE1-POS5/1/1] mpls ldp
[PE1-POS5/1/1] quit
# Configure the P router.
[P] mpls lsr-id 2.2.2.9
[P] mpls
[P-mpls] quit
[P] mpls ldp
[P-mpls-ldp] quit
[P] interface pos 5/1/1
[P-POS5/1/1] mpls
[P-POS5/1/1] mpls ldp
[P-POS5/1/1] quit
[P] interface pos 5/1/2
[P-POS5/1/2] mpls
[P-POS5/1/2] mpls ldp
[P-POS5/1/2] quit
# Configure PE 2.
[PE2] mpls lsr-id 3.3.3.9
[PE2] mpls
[PE2-mpls] quit
[PE2] mpls ldp
[PE2-mpls-ldp] quit
[PE2] interface pos 5/1/1
[PE2-POS5/1/1] mpls
[PE2-POS5/1/1] mpls ldp
[PE2-POS5/1/1] quit
After you complete the configurations, P establishes an LDP session with PE 1 and PE 2 respectively.
Issue the display mpls ldp session command. The output shows that the session status is
Operational. Issue the display mpls ldp lsp command. The output shows the LSPs established by
LDP. Take PE 1 as an example:
Neighbors
Address: 172.1.1.2
Mode:Nbr is
Master
BDR: 172.1.1.2
MTU: 0
sec
290
GR State: Normal
Priority: 1
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