The MPLS WG Archive

Cell Relay Retreat>MPLS WG Archive>month:2006-Jun> msg00003



[Date Prev][Date Next][Thread Prev][Thread Next]  
  [Date Index][Thread Index][Author Index][Subject Index]

[mpls] Fw: I-D ACTION:draft-farrel-mpls-p2mp-te-mib-00.txt

  • From: <benjamin.niven-jenkins@bt.com>
  • Date: Fri, 2 Jun 2006 15:04:16 +0100
  • Cc: tnadeau@cisco.com
  • Thread-Index: AcaFBpy9DGCEQMMuRRiLKaqys3yT1gBRrL0g
  • Thread-Topic: [mpls] Fw: I-D ACTION:draft-farrel-mpls-p2mp-te-mib-00.txt
  • X-MIME-Autoconverted: from quoted-printable to 8bit by cell.onecall.net id k52E4kH20485
  • X-OriginalArrivalTime: 02 Jun 2006 14:04:17.0320 (UTC)FILETIME=[6FD0DA80:01C6864D]

Adrian,

Adrian Farrel <mailto:adrian@olddog.co.uk> wrote:
> Please review, comment, implement (!) and tell us what we have done
> wrong. 

A couple of comments:

Section 4.1, bullet 1 states "P2MP Tunnel table (mplsP2mpTunnelTable)
that sparse augments the MPLS-TE Tunnel table".  I'm not exactly sure
what "sparse augments" means.

Section 4.2, second paragraph - "When an MPLS-TE tunnel is a P2MP
tunnel, certain objects in the mplsTunnelTable are have new meanings",
remove the extraneous "are".

Section 6, states "The nature of P2MP tunnels is such that an LSR that
is crossed by a tunnel may either be the ingress of that tunnel or have
precisely one upstream LSP segment (also known as in-segment [RFC3812])
for that LSP." and "A single P2MP cross-connect has zero or one
in-segment."

draft-ietf-mpls-rsvp-te section 18.1.1 states "There are two approaches
to dealing with re-merge case.  In the first, the node detecting the
re-merge case, i.e., the re-merge node, allows the re-merge case to
persist but data from all but one incoming interface is dropped at the
re-merge node." and "When configured to allow a re-merge case to
persist, the re-merge node receives data associated with the P2MP LSP on
multiple incoming interfaces, but it may only send the data from one of
these interfaces to its outgoing interfaces, i.e., the node MUST drop
data from all but one incoming interface."

So, if I understand correctly there is no way to detect a re-merge in a
P2MP LSP using the MIB specified in draft-farrel-mpls-p2mp-te-mib?

-- 
Ben Niven-Jenkins
Network Architect, BT Exact
  
E-mail: benjamin.niven-jenkins@bt.com 
Office: +44 (0)1473 648225
Mobile: +44 (0)7918 077205
   Fax: +44 (0)1332 578827

_______________________________________________
mpls mailing list
mpls@lists.ietf.org
https://www1.ietf.org/mailman/listinfo/mpls