IPv4-Only PE Design All SAFI
draft-mishra-bess-ipv4-only-pe-design-all-safi-05
| Document | Type |
Replaced Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Authors | Gyan Mishra , Jeff Tantsura , Mankamana Prasad Mishra , Sudha Madhavi , Qing Yang , Adam Simpson , Shuanglong Chen | ||
| Last updated | 2023-07-27 | ||
| Replaced by | draft-ietf-bess-v4-v6-pe-all-safi | ||
| RFC stream | (None) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Replaced by draft-ietf-bess-v4-v6-pe-all-safi | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
As Enterprises and Service Providers try to decide whether or not to upgrade their brown field or green field MPLS/SR core to an IPv6 transport, Multiprotocol BGP (MP-BGP)now plays an important role in the transition of their Provider (P) core network as well as Provider Edge (PE) Edge network from IPv4 to IPv6. Operators must be able to continue to support IPv4 customers when both the Core and Edge networks are IPv4-Only. This specification details an important External BGP (eBGP) PE-CE Edge IPv4-Only peering design that leverages the MP-BGP capability exchange by using IPv4 peering as pure transport, allowing both IPv4 Network Layer Reachability Information (NLRI) and IPv6 Network Layer Reachability Information (NLRI)to be carried over the same (Border Gateway Protocol) BGP TCP session. The design change provides the same Dual Stacking functionality that exists today with separate IPv4 and IPv6 BGP sessions as we have today. With this design change from a control plane perspective a single IPv4 is required for both IPv4 and IPv6 routing updates and from a data plane forwarindg perspective an IPv4 address need only be configured on the PE and CE interface for both IPv4 and IPv6 packet forwarding. This document defines the IPv4-Only PE Design as a new PE-CE Edge and ASBR-ASBR PE-PE Inter-AS BGP peering Standard defined in this specification which is now extended to support to all AFI/SAFI ubiquitously. As service providers migrate to Segment Routing architecture SR-MPLS and SRv6, VPN overlay exsits as well, and thus Inter-AS options Option-A, Option-B, Option-AB and Option-C are still applicable and thus this extension of IPv4-Only peering architecure extension to Inter-AS peering is very relevant to Segment Routing as well.
Authors
Gyan Mishra
Jeff Tantsura
Mankamana Prasad Mishra
Sudha Madhavi
Qing Yang
Adam Simpson
Shuanglong Chen
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)