Common Control and Measurement Plane

The information below is for an older approved charter
Document Charter Common Control and Measurement Plane WG (ccamp) Snapshot
Title Common Control and Measurement Plane
Last updated 2001-01-31
State Approved
WG State Active
IESG Responsible AD Deborah Brungard
Charter Edit AD (None)
Send notices to (None)


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
  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
  - 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.