Technical Summary
The Path Computation Element (PCE) is a component that is capable
of computing constrained paths for (G)MPLS TE LSPs. The PCE
Communication Protocol(PCEP) is defined to allow communication
between Path Computation Clients (PCCs) and PCEs, and between PCEs.
The PCEP is used to request constrained paths and to supply computed
paths in response. Generic requirements for the PCEP are set out in
"Path Computation Element (PCE) Communication Protocol Generic
Requirements", RFC 4657. This document extends those requirements to
cover the use of PCEP in support of inter-AS MPLS TE.
Working Group Summary
Good WG consensus reported.
Document Quality
As a requirements document, this document is not subject to
implementation, although related protocol work has been done
in parallel. The document has been discussed and
reviewed by several key WG members including both co-chairs.
Further, Sandy Murphy from the Security Directorate made a
thorough review of the document and Adrian Farrel has worked
with the authors to address the comments.
Personnel
JP Vasseur is the document shepherd (although Adrian Farrel has
also helped with document progression). Ross Callon is the
responsible AD.
RFC Editor Note
Section 1, second paragraph:
OLD
Three signaling options are defined for setting up an
inter-AS TE LSP:
NEW
Three signaling options are defined for setting up an
inter-AS TE Label Switched Path (LSP):
Section 2 (“terminology”). Please add the following definition:
ASBR Autonomous System Border Router (see section 3 of RFC4216)
Please move figure 1 from the end of section 3 (right before 3.1)
to be right after the first paragraph of section 3.
Section 4, first paragraph, last sentence, the word "perations"
Should be "operations".
Section 4.1.1,fifth bullet item. Change "SRLG" to
"Shared Risk Link Group (SRLG)".
Section 4.2, bulleted list: It has been suggested that the
sub-bullets should use a different first character compared
to the top level bullets. We will leave it to the RFC editor's
discretion regarding how to handle this.
Section 4.3, first paragraph, second sentence:
OLD
This document addresses new requirements that apply
to inter-AS operations.
NEW
This document specifies new requirements that apply
to inter-AS operations.
Section 4.3, fifth paragraph, second sentence: Please remove the
extra space between "The" and "PCEP".
Section 8, first address; fourth line:
OLD
Waltham, MA 02451
NEW
Waltham, MA 02451 USA
Section 8, please correct the email address for Raymond Zhang
as follows:
OLD
Raymond_zhang@bt.com
NEW
Raymond.zhang@bt.com