Hi JP, The ID looks very great.
I have several comments. 1. Section 3.2: The last sentense The SVEC, RP, END-POINTS, LSPA, BANDWIDTH, METRIC, ERO, IRO and LOAD- BALANCING objects are defined in [I-D.ietf-pce-pcep]. is not neccessary, as these objects do not appear in PCMonRep. 2. Section 4.1 describes P (Processing Time) - 1 bit: the P bit of the MONITORING object carried in a PCMonReq message is set to indicate that the processing... "or a PCReq message" would be added after "a PCMonReq message". 3. Section 4.3 describes When the processing time is requested in addition to a path computation, the PROC-TIME object always report the actual processing time for that request and thus the E bits MUST be cleared. Is it possible to define "actulal" Min- Max- Average- procssing time with E=0? Otherwise, when E is cleared, Min- Max- Average- procssing time MUST be set to 0x00000000. In other words, If the G flag of the MONITORING object is set then E bit MUST be cleared. Please clarify it. 4. Section 4.1 C (Check) - 1 bit: when set, this indicates that the performance metric of interest is the PCE's availability. What does the PCE's availablity mean? If a specific TE LSP computation is requested, does it mean that PCE has the ability to compute the path with the specified constraints? In case of the general computation, does it mean that PCE is alive or not? Please clarify it. Thank you. Eiji On Fri, 20 Oct 2006 08:30:06 -0400 JP Vasseur <[EMAIL PROTECTED]> wrote: > Hi, > > See below a new ID related to the monitoring of PCE-based path > computation architecture so as to required various performance > metrics such as liveness verification of the various elements of a > path computation chain, processing time spent on path computation at > each hop (for performance monitoring or troubleshooting, ...). > > Comments and opinions are most welcome. > > Thanks. > > JP. > > > Begin forwarded message: > > > From: [EMAIL PROTECTED] > > Date: October 20, 2006 2:50:01 AM EDT > > To: [email protected] > > Subject: I-D ACTION:draft-vasseur-pce-monitoring-01.txt > > Reply-To: [EMAIL PROTECTED] > > > > A New Internet-Draft is available from the on-line Internet-Drafts > > directories. > > > > > > Title : A set of monitoring tools for Path Computation > > Element > > based Architecture > > Author(s) : J. Vasseur > > Filename : draft-vasseur-pce-monitoring-01.txt > > Pages : 16 > > Date : 2006-10-19 > > > > A Path Computation Element (PCE) based architecture has been > > specified for the computation of Traffic Engineering (TE) Label > > Switched Paths (LSPs) in Multiprotocol Label Switching (MPLS) and > > Generalized MPLS (GMPLS) networks in the context of single or > > 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 be used for performance monitoring and > > troubleshooting purposes. This document specifies procedures and > > extensions to the Path Computation Element Protocol (PCEP) in order > > to gather such information. > > > > A URL for this Internet-Draft is: > > http://www.ietf.org/internet-drafts/draft-vasseur-pce- > > monitoring-01.txt > > > > To remove yourself from the I-D Announcement list, send a message to > > [EMAIL PROTECTED] with the word unsubscribe in the body of > > the message. > > You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce > > to change your subscription settings. > > > > Internet-Drafts are also available by anonymous FTP. Login with the > > username "anonymous" and a password of your e-mail address. After > > logging in, type "cd internet-drafts" and then > > "get draft-vasseur-pce-monitoring-01.txt". > > > > A list of Internet-Drafts directories can be found in > > http://www.ietf.org/shadow.html > > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt > > > > Internet-Drafts can also be obtained by e-mail. > > > > Send a message to: > > [EMAIL PROTECTED] > > In the body type: > > "FILE /internet-drafts/draft-vasseur-pce-monitoring-01.txt". > > > > NOTE: The mail server at ietf.org can return the document in > > MIME-encoded form by using the "mpack" utility. To use this > > feature, insert the command "ENCODING mime" before the "FILE" > > command. To decode the response(s), you will need "munpack" or > > a MIME-compliant mail reader. Different MIME-compliant mail readers > > exhibit different behavior, especially when dealing with > > "multipart" MIME messages (i.e. documents which have been split > > up into multiple messages), so check your local documentation on > > how to manipulate these messages. > > > > Below is the data which will enable a MIME compliant mail reader > > implementation to automatically retrieve the ASCII version of the > > Internet-Draft. > > Content-Type: text/plain > > Content-ID: <[EMAIL PROTECTED]> > > > > _______________________________________________ > > I-D-Announce mailing list > > [email protected] > > https://www1.ietf.org/mailman/listinfo/i-d-announce > _______________________________________________ Pce mailing list [email protected] https://www1.ietf.org/mailman/listinfo/pce
