Configuring nested vpn – H3C Technologies H3C S12500-X Series Switches User Manual
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# Configure PE 3.
<PE3> system-view
[PE3] interface loopback 0
[PE3-LoopBack0] ip address 1.1.1.9 32
[PE3-LoopBack0] quit
[PE3] mpls lsr-id 1.1.1.9
[PE3] mpls ldp
[PE3-ldp] quit
[PE3] isis 2
[PE3-isis-2] network-entity 10.0000.0000.0000.0001.00
[PE3-isis-2] quit
[PE3] interface loopback 0
[PE3-LoopBack0] isis enable 2
[PE3-LoopBack0] quit
[PE3] interface vlan-interface 12
[PE3-Vlan-interface12] ip address 10.1.1.1 24
[PE3-Vlan-interface12] isis enable 2
[PE3-Vlan-interface12] mpls enable
[PE3-Vlan-interface12] mpls ldp enable
[PE3-Vlan-interface12] mpls ldp transport-address interface
[PE3-Vlan-interface12] quit
# Configure CE 1.
<CE1> system-view
[CE1] interface loopback 0
[CE1-LoopBack0] ip address 2.2.2.9 32
[CE1-LoopBack0] quit
[CE1] mpls lsr-id 2.2.2.9
[CE1] mpls ldp
[CE1-ldp] quit
[CE1] isis 2
[CE1-isis-2] network-entity 10.0000.0000.0000.0002.00
[CE1-isis-2] quit
[CE1] interface loopback 0
[CE1-LoopBack0] isis enable 2
[CE1-LoopBack0] quit
[CE1] interface vlan-interface 12
[CE1-Vlan-interface12] ip address 10.1.1.2 24
[CE1-Vlan-interface12] isis enable 2
[CE1-Vlan-interface12] mpls enable
[CE1-Vlan-interface12] mpls ldp enable
[CE1-Vlan-interface12] mpls ldp transport-address interface
[CE1-Vlan-interface12] quit
After the configurations, PE 3 and CE 1 can establish an LDP session and IS-IS neighbor
relationship between them.
# Configure PE 4 and CE 2 in the same way that PE 3 and CE 1 are configured. (Details not
shown.)
3.
Perform configurations to allow CEs of the customer carrier to access PEs of the provider carrier,
and redistribute IS-IS routes to BGP and BGP routes to IS-IS on the PEs: