A Backward Recursive PCE-initiated inter-domain LSP Setup
draft-dugeon-brpc-stateful-00
| Document | Type |
Replaced Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Authors | Olivier Dugeon , Julien Meuric | ||
| Last updated | 2017-09-14 (Latest revision 2017-03-13) | ||
| Replaced by | draft-dugeon-pce-stateful-interdomain | ||
| 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-dugeon-pce-stateful-interdomain | |
| 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This Internet-Draft is no longer active.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
The Path Computation Element (PCE) working group (WG) has produced a set of RFCs to standardize the behavior of the Path Computation Element as a tool to help MPLS-TE, GMPLS LSP tunnels and Segment Routing paths placement. This also include the ability to compute inter-domain LSPs or Segment Routing path following a distributed or hierarchical approach. In complement to the original stateless mode, a stateful mode has been added. In particular, the new PCInitiate message allows a PCE to directly ask a PCC to setup an MPLS-TE, GMPLS LSP tunnels or a Segment Routing path. However, once computed, the inter-domain LSPs or Segment Routing path are hard to setup in the underlying network. Especially, in operational network, RSVP-TE signaling is not enable between BGP border routers. But, such RSVP- TE signaling is mandatory to setup contiguous LSP tunnels or to stitch or nest independent LSP tunnels to form the end-to-end inter- domain LSP tunnels. This draft propose to combine a Backward Recursive method with PCInitiate message to setup independent LSP tunnels per domain and stitch or nest the different LSP tunnels to setup end-to-end inter-domain LSP tunnels without the need of inter- domain signaling between BGP border routers. A new Stitching Label definition and new LSP-TYPE code points are proposed for that purpose.
Authors
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)