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RFC 6006, "Extensions to the Path Computation Element Communication Protocol (PCEP) for Point-to-Multipoint Traffic Engineering Label Switched Paths", September 2010

Note: This RFC has been obsoleted by RFC 8306

Source of RFC: pce (rtg)
See Also: RFC 6006 w/ inline errata

Errata ID: 4867
Status: Verified
Type: Technical
Publication Format(s) : TEXT

Reported By: DHRUV DHODY
Date Reported: 2016-11-16
Verifier Name: Deborah Brungard
Date Verified: 2017-03-13

Section 3.4 says:

           <PCReq Message>::= <Common Header>
                                 <request>
        where:
                <request>::= <RP>
                                <end-point-rro-pair-list>
                                [<OF>]
                                [<LSPA>]
                                [<BANDWIDTH>]
                                [<metric-list>]
                                [<IRO>]
                                [<LOAD-BALANCING>]

        where:

                <end-point-rro-pair-list>::=
                                   <END-POINTS>[<RRO-List>][<BANDWIDTH>]
                                   [<end-point-rro-pair-list>]

                <RRO-List>::=<RRO>[<BANDWIDTH>][<RRO-List>]
                <metric-list>::=<METRIC>[<metric-list>]

It should say:

           <PCReq Message>::= <Common Header>
                              [<svec-list>]
                              <request-list>

           where:

                <svec-list>::=<SVEC>
                              [<OF>]
                              [<metric-list>]
                              [<svec-list>]

                <request-list>::=<request>[<request-list>]

                <request>::= <RP>
                             <end-point-rro-pair-list>
                             [<OF>]
                             [<LSPA>]
                             [<BANDWIDTH>]
                             [<metric-list>]
                             [<IRO>|<BNC>]
                             [<LOAD-BALANCING>]

           where:

                <end-point-rro-pair-list>::=
                                   <END-POINTS>[<RRO-List>[<BANDWIDTH>]]
                                   [<end-point-rro-pair-list>]
                <RRO-List>::=(<RRO>|<SRRO>)[<RRO-List>]
                <metric-list>::=<METRIC>[<metric-list>]

Notes:

o Update the Routing Backus-Naur Form (RBNF) [RFC5511] for Request
message format:

* Update the request message to allows for the bundling of
multiple path computation requests within a single Path
Computation Request (PCReq) message.

* Add <svec-list> in PCReq message. This object was missed in
[RFC6006].

* Add BNC object in PCReq message. This object is required to
support P2MP. It shares the same format as Include Route Object
(IRO) but it is a different object.

* Update the <RRO-List> format to also allow Secondary Record
Route object (SRRO). This object was missed in [RFC6006].

* Removed the BANDWIDTH Object followed by Record Route Object
(RRO) from <RRO-List>. As BANDWIDTH object doesn't need to follow
for each RRO in the <RRO-List>, there already exist BANDWIDTH
object follow <RRO-List> and is backward compatible with
[RFC5440].

* Update the <end-point-rro-pair-list> to allow optional BANDWIDTH
object only if <RRO-List> is included.

Refer https://datatracker.ietf.org/doc/draft-palleti-pce-rfc6006bis/?include_text=1

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