Configuring Inter-As Vpn Option A - Huawei Quidway S9300 Configuration Manual

Quidway S9300 Terabit Routing Switch
Configuration Guide - VPN
Data Preparation
To configure inter-AS IP VPN Option A, you need the following data:
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3.6.2 Configuring Inter-AS VPN Option A

Context
Inter-AS VPN Option A is easy to deploy. When the amount of the VPNs and the VPN routes
on the PE is small, this solution can be adopted.
Procedure
Step 1
3.4 Configuring Basic BGP/MPLS IP VPN
Step 2 Configuring ASBR-PE by considering the peer ASBR-PE as its CE.
Step 3 Configuring VPN instances for the PE and the ASBR-PE separately.
The VPN instance for PE is used to access CE; that for ASBR-PE is used to access its peer
ASBR-PE.
In inter-AS VPN Option A mode, for the same VPN, the VPN targets of ASBR-PE and the PE VPN instance
must be matched in an AS. This is not required for the PEs in different ASs.
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Issue 03 (2009-08-20)
Data
To configure the VPN instance on the PE and the ASBR PE, you need the following
data:
Name of the VPN instance
l
Route distinguisher
l
Description of the VPN instance
l
VPN target
l
(optional) Routing policy
l
(optional) Tunnel policy
l
(optional) Maximum number of route permitted in a VPN instance
l
IP address of the PE interface connected with the PE
AS number of the PE
IPaddresses of the interfaces connected the ASBR PEs
Routing protocol configured between the PE and the CE: static route, RIPng, IS-ISv6
or BGP4+
IP addresses and interfaces between the PE and ASBR PE to establish the MP-IBGP
peers
NOTE
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3 BGP/MPLS IP VPN Configuration
on each AS.
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