Example For Configuring Inter-Provider Vpn Option B - 3Com MSR 50 Series Configuration Manual

Example for Configuring
Inter-Provider VPN
Option B
After you complete the above configurations, the CEs should be able to learn the
interface routes from each other and ping each other.
Network requirements
Site 1 and Site 2 belong to the same VPN. CE 1 of Site 1 accesses the network
■
through PE 1 in AS 100 and CE 2 of Site 2 accesses the network through PE 2
in AS 600.
PEs in the same AS runs IS-IS between them.
■
PE 1 and ASBR-PE 1 exchange labeled IPv4 routes by MP-IBGP.
■
PE 2 and ASBR-PE 2 exchange labeled IPv4 routes by MP-IBGP.
■
ASBR-PE 1 and ASBR-PE 2 exchange labeled IPv4 routes by MP-EBGP.
■
ASBRs do not perform VPN target filtering of received VPN-IPv4 routes.
■
Network diagram
Figure 425 Configure inter-provider VPN option B
MPLS backbone
AS 100
S2/0
Loop0
S2/0
PE 1
Eth1/1
CE 1
AS 65001
Device Interface
PE 1 Loop0
Eth 1/1
S 2/0
ASBR-PE 1 Loop0
S 2/0
S 2/1
Configuration procedure
1 Configure PE 1
# Start IS-IS on PE 1.
<PE1> system-view
[PE1] isis 1
MPLS L3VPN Configuration Example
Loop 0
S2 /1
S2/1
ASBR-PE 1 ASBR-PE 2
Site 1
IP address Device
2.2.2.9/32 PE 2
30.0.0.1/8
1.1.1.2/8
3.3.3.9/32 ASBR-PE 2
1.1.1.1/8
11.0.0.2/8
MPLS backbone
Loop 0
AS 200
S2 /0
Loop 0
S2 /0
PE 2
Eth1/1
Site 2
CE 2
AS 65001
Interface IP address
Loop0 5.5.5.9/32
Eth 1/1 20.0.0.1/8
S 2/0 9.1.1.2/8
Loop0 4.4.4.9/32
S 2/0 9.1.1.1/8
S 2/1 11.0.0.1/8
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