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Title : A set of monitoring tools for Path Computation Element based architecture
Author(s) : J. Vasseur
Filename : draft-vasseur-pce-monitoring-00.txt
Pages : 15
Date : 2006-10-13
A Path Computation Element (PCE) based architecture has been
specified for the computation of constrained shortest Traffic
Engineering (TE) Label Switched Paths (LSPs) in Multiprotocol Label
Switching (MPLS) and Generalized MPLS (GMPLS) networks in the context
of single or multiple across multiple domains (where a domain is
referred to as a collection of network elements within a common
sphere of address management or path computational responsibility
such as IGP areas and Autonomous Systems). In such PCE-based
environment it is thus critical to monitor the state of the path
computation chain and potentially gather various performance metrics
with regards to the set of involved PCE(s) that can used for
performance monitoring and troubleshooting purposes so as to identify
a potential bottleneck in the path computation chain. This document
specifies procedures and extensions to the Path Computation Element
Protocol (PCEP) in order to gather such information.
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