Common Control and Measurement Plane
charter-ietf-ccamp-08-00

The CCAMP working group is responsible for standardizing a common
control plane and a separate common measurement plane for non-packet
technologies found in the Internet and in the networks of telecom
service providers (ISPs and SPs). Examples of the devices in such
networks include photonic cross-connects, OEO switches, ROADMs, TDM
switches, microwave links, and Ethernet switches.

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

The working group develops extensions to core Traffic Engineering
protocols that are under the care of other working groups as well as
YANG models for the control and management of non-packet networks (this
includes both device models and network models). The CCAMP working group
will coordinate with the TEAS working group to ensure that extensions
that can be generalized for use with more than one technology are made
appropriately, and with the working groups that have responsibility for
the specific protocols.

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 in technology-specific networks. These will be
  developed in conjunction with requests and requirements from other WGs
  to ensure overall usefulness.

• Maintenance and extension of 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 in non-packet, technology-specific networks. Protocol
  formats and procedures that embody these extensions will be done jointly
  with the WGs supervising those protocols and the TEAS working group has
  the responsibility to determine whether such protocol extensions should
  be generalized for Traffic Engineering in any network. This may include
  protocol work to support data planes that have already been approved by
  another Standards Development Organization. Note that the specification
  or modification of data planes is out of scope of this working group.

• Definition of management objects (e.g., as part of MIB modules or YANG
  models) and control of OAM techniques relevant to the protocols and
  extensions specified within the WG. The OAM work will be synchronized
  with relevant working groups (e.g. IPPM, OPSAWG, BFD) and SDOs (e.g.
  ITU-T).

• Description of non-packet-specific aspects of traffic engineering
  including for multi-areas/multi-AS/multi-layer scenarios and define
  protocol extensions in cooperation with the TEAS and PCE working
  groups.

• Description of non-packet-specific (e.g. Ethernet, TDM, OTN, WDM, …)
  aspects (requirements, use cases, …) of network slicing and protocol and
  Yang models extensions in cooperation with the TEAS and PCE working
  groups.

• Definition how the properties of network resources gathered by a
  measurement protocol (or by other means such as configuration) can be
  distributed in existing routing protocols, such as OSPF, IS-IS, and
  BGP-LS. CCAMP will work with the WGs that supervise these.

The CCAMP WG currently works on the following tasks:

• Protocol extensions and YANG models in support of optical networks (e.g.
  WSON, flexi grid) with and without awareness of the optical impairments.

• Protocol extensions and YANG models in support of TDM networks (e.g.
  OTN).

• YANG models in support of microwave networks.

• YANG models fin support of L1 services

• Client TE topologies

• Maintenance of existing protocol extensions for non-packet
  technology-specific networks (Ethernet, TDM, OTN) already specified by
  CCAMP.

• Maintenance of LMP.