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After the configuration, LDP sessions are established between Spoke-PE 1 and Hub-PE, and
between Spoke-PE 2 and Hub-PE. Issue the
display mpls ldp session
command. The output shows
that the session status is Operational. Issue the
display mpls ldp lsp
command.
Takes Spoke-PE 1 as an example:
[Spoke-PE1] display mpls ldp session
LDP Session(s) in Public Network
Total number of sessions: 1
----------------------------------------------------------------
Peer-ID Status LAM SsnRole FT MD5 KA-Sent/Rcv
---------------------------------------------------------------
2.2.2.9:0 Operational DU Passive Off Off 5/5
---------------------------------------------------------------
LAM : Label Advertisement Mode FT : Fault Tolerance
[Spoke-PE1] display mpls ldp lsp
LDP LSP Information
------------------------------------------------------------------
SN DestAddress/Mask In/OutLabel Next-Hop In/Out-Interface
------------------------------------------------------------------
1 1.1.1.9/32 3/NULL 127.0.0.1 -------/InLoop0
2 2.2.2.9/32 NULL/3 172.1.1.2 -------/Vlan-interface4
3 3.3.3.9/32 NULL/1024 172.1.1.2 -------/Vlan-interface4
------------------------------------------------------------------
A '*' before an LSP means the LSP is not established
A '*' before a Label means the USCB or DSCB is stale
3.
Configure VPN instances on the spoke-PEs and the hub-PE to allow CEs to access the PEs.
# Configure Spoke-PE 1.
[Spoke-PE1] ip vpn-instance vpn1
[Spoke-PE1-vpn-instance-vpn1] route-distinguisher 100:1
[Spoke-PE1-vpn-instance-vpn1] vpn-target 111:1 import-extcommunity
[Spoke-PE1-vpn-instance-vpn1] vpn-target 222:2 export-extcommunity
[Spoke-PE1-vpn-instance-vpn1] quit
[Spoke-PE1] interface vlan-interface 2
[Spoke-PE1-Vlan-interface2] ip binding vpn-instance vpn1
[Spoke-PE1-Vlan-interface2] ip address 10.1.1.2 24
[Spoke-PE1-Vlan-interface2] quit
# Configure the Spoke-PE 2.
[Spoke-PE2] ip vpn-instance vpn1
[Spoke-PE2-vpn-instance-vpn1] route-distinguisher 100:2
[Spoke-PE2-vpn-instance-vpn1] vpn-target 111:1 import-extcommunity
[Spoke-PE2-vpn-instance-vpn1] vpn-target 222:2 export-extcommunity
[Spoke-PE2-vpn-instance-vpn1] quit
[Spoke-PE2] interface vlan-interface 3
[Spoke-PE2-Vlan-interface3] ip binding vpn-instance vpn1
[Spoke-PE2-Vlan-interface3] ip address 10.2.1.2 24
[Spoke-PE2-Vlan-interface3] quit
# Configure the Hub-PE.
[Hub-PE] ip vpn-instance vpn1-in