A new Request for Comments is now available in online RFC libraries.
RFC 8233
Title: Extensions to the Path Computation
Element Communication Protocol (PCEP) to Compute
Service-Aware Label Switched Paths (LSPs)
Author: D. Dhody,
Q. Wu,
V. Manral,
Z. Ali,
K. Kumaki
Status: Standards Track
Stream: IETF
Date: September 2017
Mailbox: dhruv.ietf@gmail.com,
bill.wu@huawei.com,
vishwas@nanosec.io,
zali@cisco.com,
ke-kumaki@kddi.com
Pages: 31
Characters: 62742
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-pce-pcep-service-aware-13.txt
URL: https://www.rfc-editor.org/info/rfc8233
DOI: 10.17487/RFC8233
In certain networks, such as, but not limited to, financial
information networks (e.g., stock market data providers), network
performance criteria (e.g., latency) are becoming as critical to data
path selection as other metrics and constraints. These metrics are
associated with the Service Level Agreement (SLA) between customers
and service providers. The link bandwidth utilization (the total
bandwidth of a link in actual use for the forwarding) is another
important factor to consider during path computation.
IGP Traffic Engineering (TE) Metric Extensions describe mechanisms
with which network performance information is distributed via OSPF and
IS-IS, respectively. The Path Computation Element Communication
Protocol (PCEP) provides mechanisms for Path Computation Elements
(PCEs) to perform path computations in response to Path Computation
Client (PCC) requests. This document describes the extension to PCEP
to carry latency, delay variation, packet loss, and link bandwidth
utilization as constraints for end-to-end path computation.
This document is a product of the Path Computation Element Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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