IETF 81 Proceedings

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Common Control and Measurement Plane (ccamp) (WG)

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Additional information is available at tools.ietf.org/wg/ccamp

Chair(s):

Routing Area Director(s):

Routing Area Advisor:

Secretary(ies):

Meeting Slides

Internet-Drafts:

Request for Comments:

Charter (as of 2011-08-18)

Organizational Overview

The CCAMP working group coordinates the work within the IETF defining a
common control plane and a separate common measurement plane for
physical path and core tunneling technologies of Internet and telecom
service providers (ISPs and SPs), e.g. O-O and O-E-O optical switches,
TDM Switches, Ethernet Switches, ATM and Frame Relay switches, IP
encapsulation tunneling technologies, and MPLS in cooperation with the
MPLS WG.

In this context, measurement refers to the acquisition and distribution
of attributes relevant to the setting up of tunnels and paths.

CCAMP WG work scope includes:

- Definition of protocol-independent metrics and parameters (measurement
attributes) for describing links and paths that are required for
routing and signaling. These will be developed in conjunction with
requests and requirements from other WGs to ensure overall usefulness.

- Definition of and extensions to protocols for link and path attribute
measurement. This includes the Link Management Protocol (LMP).

- Functional specification of extensions for GMPLS-related routing
(OSPF, ISIS) and signaling (RSVP-TE) protocols required for path
establishment and maintenance. Protocol formats and procedures that
embody these extensions will be done jointly with the WGs supervising
those protocols.

- Definition of the mechanisms required to determine the route and
properties of an established path (tunnel tracing).

- Definition of management objects (e.g., as part of MIB modules) and
control of OAM techniques relevant to the protocols and extensions
specified within the WG.

- Work on traffic-engineering GMPLS mechanisms and protocol extensions
to support source-controlled and explicitly-routed data paths for data
planes that are already approved by a Standards Development
Organization (SDO). Note that the specification or modification of
data planes is out of scope of this working group. Example data planes
include Wavelength Switched Optical Networks (WSON), Optical Transport
Networks (OTN), Ethernet, and the MPLS data plane.

- Work on GMPLS mechanisms and protocol extensions to support the
transport profile of MPLS (MPLS-TP) in cooperation with the MPLS,
L2VPN, and PWE3 Working Group and in coordination with the
requirements expressed jointly by the IETF and ITU-T.

CCAMP WG currently works on the following tasks:

- Define how the properties of network resources gathered by a
measurement protocol (or by other means e.g. configured) can be
distributed in existing routing protocols, such as OSPF and
IS-IS. CCAMP will work with the WGs that supervise these
protocols. The specifics of distribution within IS-IS are being
addressed in the ISIS WG. Current work activities are focused in the
areas of WSON and OTN.

- Define signaling and routing mechanisms and extensions to allow path
and tunnel setup and maintenance across multiple domains, where a
domain may be an IGP area, an Autonomous System, or any other region
of topological visibility. To this end, work cooperatively with the
PCE and MPLS WGs.

- Define abstract link and path properties needed for link and path
protection. Specify signaling mechanisms for path protection, diverse
routing and fast path restoration. Ensure that multi-layer path
protection and restoration functions are achievable using the defined
signaling, routing, and measurement protocols, either separately or in
combination.

- Identify signaling and routing requirements for supporting protocol
extensions in support of data plane technologies (e.g., WSON, OTN,
MPLS-TP, and Ethernet) and network architectures (e.g. ITU-T's
Automatically Switched Optical Network (ASON)) not currently met by
protocols defined in CCAMP; based on these, define mechanisms to
address these requirements. This activity will build on documents
produced by the WG, including Informational, Standards Track and
Experimental documents.

- Produce extensions to the CCAMP WG protocols and RFCs necessary to
create an MPLS Transport Profile (MPLS TP). The work on the MPLS TP
will be coordinated between the MPLS, L2VPN, PWE3, and CCAMP working
groups that are jointly chartered to do MPLS TP work.

In doing this work, the WG will work closely with at least the following
other WGs: MPLS, L2VPN, PWE3, ISIS, OSPF, IDR, and PCE. The WG will also
cooperate with the ITU-T and the IEEE 802.1.

Goals and Milestones:

Done  Post strawman WG goals and charter
Done  Identify and document a limited set of candidate solutions for signalling and for measurement. Among candidate control solutions to be considered are the existing GMPLS drafts.
Done  Build appropriate design teams
Done  Submit WG document defining path setup portions of common control plane protocol
Done  Submit WG document defining common measurement plane protocol
Done  Submit LMP MIB to IESG
Done  Submit protection & restoration documents to IESG
Done  Submit ASON signaling requirements doc to IESG
Done  Submit GMPLS MIBs to IESG
Done  Produce CCAMP WG document for generic tunnel tracing protocol
Done  Produce CCAMP WG document for multi-area/AS signaling and routing
Done  Submit ASON routing requirements doc to IESG
Done  Submit revised charter and milestones to IESG for IESG consideration of more detailed deliverables and determination of usefulness of continuation of WG
Done  First version WG I-D for Advertising TE Node Capabilities in ISIS and OSPF
Done  First version WG I-D for Automatic discovery of MPLS-TE mesh membership
Done  Submit ASON Routing evaluation I-D for IESG review
Done  Cross-WG review of I-D for Advertising TE Node Capabilities in ISIS and OSPF
Done  First version WG I-D MPLS to GMPLS migration strategies
Done  First version WG I-D Requirements for Multi-Layer and Multi-Region Networks
Done  First version WG I-D for Evaluation of existing protocols for MLN/MRN
Done  First version of WG I-D for ASON Routing solutions
Done  Submit RSVP-TE extensions for inter-domain signaling I-D for IESG review
Done  Submit Per-domain path computation signaling I-D for IESG review
Done  First version of WG I-D for OSPF-TE/GMPLS MIB module
Done  Submit GMPLS signaling in support of Call Management I-D for IESG review
Done  First version WG Informational I-D for Analysis of inter-domain issues for disjoint and protected paths
Done  Submit I-D for Advertising TE Node Capabilities in ISIS and OSPF for IESG review
Done  First version WG I-D for Protocol solutions for MLN/MRN
Done  Submit GMPLS/ASON lexicography I-D for IESG review
Done  First version WG I-D MPLS-GMPLS interworking requirements and solutions
Done  Submit LSP Stitching I-D for IESG review
Done  Submit I-D for Automatic discovery of MPLS-TE mesh membership for IESG review
Done  First version WG I-D GMPLS OAM Requirements
Done  Submit GMPLS routing and signaling interoperability advice I-D for IESG review
Done  Submit MPLS to GMPLS migration strategies I-D for IESG review
Done  Submit Requirements for Multi-Layer and Multi-Region Networks I-D for IESG review
Done  Submit MPLS-GMPLS interworking requirements and solutions I-D for IESG review
Done  Submit Evaluation of existing protocols for MLN/MRN for IESG review
Done  First version WG I-Ds for GMPLS source-controlled and explicitly-routed Ethernet networks
Done  Submit Informational I-D for Analysis of inter-domain issues for disjoint and protected paths for IESG review
Done  Submit Protocol solutions for MLN/MRN I-D for IESG review
Done  First version of WSON routing related Working Group drafts
Done  Submit Ethernet related drafts for IESG review
Done  Submit hierarchy bis for IESG review
Apr 2010  First version of LMP Negotiation Working Group draft
Apr 2010  First version of G.709 enhancements framework Working Group drafts
Apr 2010  First version of Working Group draft providing Control Plane Framework for MPLS-TP
Apr 2010  First versions of impairments related solutions Working Group drafts
Apr 2010  Submit TE MIB module IESG review
Apr 2010  Submit VCAT/LCAS with GMPLS for IESG review
May 2010  Submit Lambda labels draft for IESG review
May 2010  Submit WSON framework draft for IESG review
May 2010  Submit WSON impairment framework draft for IESG review
May 2010  Submit OAM configuration framework for IESG review
May 2010  First version of OAM configuration solutions Working Group draft
Aug 2010  First version of G.709 enhancements solutions Working Group drafts
Aug 2010  First version of LMP for G.709 enhancements Working Group drafts
Sep 2010  First version of Working Group draft defining RSVP-TE extensions for MPLS-TP
Dec 2010  Submit WSON routing related for IESG review
Dec 2010  Submit impairments related solutions for IESG review
Dec 2010  Submit G.709 enhancements framework for IESG review
Dec 2010  Submit Control Plane Framework for MPLS-TP for IESG review
Mar 2011  Submit RSVP-TE extensions for MPLS-TP for IESG review
Apr 2011  Submit G.709 enhancements solutions for IESG review
Apr 2011  Submit LMP Negotiation for IESG review
Apr 2011  Submit last OAM configuration solutions for IESG review
Aug 2011  Submit LMP for G.709 enhancements for IESG review
Nov 2011  Recharter or close Working Group

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