![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
5. VPN BGP/MPLS IPv6 inter-AS
Customer sites for BGP/MPLS VPN solutions in the same virtual private network may not all be covered by the same network operator, meaning in particular that the VPN is supported by different stand-alone systems. In this case, the exchange of VPN routes between two PEs from different routing domains cannot take place via MP-iBGP. To offer end-to-end VPN solutions, the two networks interconnect via gateways called ASBRs, using one or more of the inter-domain methods listed in this section.
5.1 Option "a
Option a is also known as VRF-to-VRF or back-to-back.
In option a, AS1's ASBR1 router is directly connected to AS2's ASBR2, via several sub-interfaces, at least one per VPN requiring inter-domain extension.
Each...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Security of information systems
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
VPN BGP/MPLS IPv6 inter-AS
Bibliography
Also in our database
Standards and norms
- Multiprotocol Label Switching Architecture, ROSAN (E.) et al., IETF RFC 3031 - RFC 3031 - 2001
- BGP/MPLS IP Virtual Private Networks (VPNs), ROSEN (E.), REKHTER (Y.), IETF RFC 4364 - RFC 4364 - 2006
- Softwire Problem Statement, DURAND (A.) et al., IETF RFC 4925 - RFC 4925 - 2007
- BGP-MPLS IP Virtual Private Network (VPN) Extension for IPv6 VPN, De CLERCQ (J.) et al., IETF RFC 4659 - RFC 4659 - 2006 ...
Directory
Organizations – Federations – Associations (non-exhaustive list)
IETF Internet Engineering Task Force http://www.ietf.org/
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference