Basic ideas
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Basic ideas. The CP-DCN (or SCN) is an IP network Use IP network management for it It is TP, so keep out of the model CP-C management is closer to application management than to network management You have processes running in your network They communicate with each other

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Basic ideas

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Basic ideas

Basic ideas

  • The CP-DCN (or SCN) is an IP network

    • Use IP network management for it

    • It is TP, so keep out of the model

  • CP-C management is closer to application management than to network management

    • You have processes running in your network

    • They communicate with each other

    • Essential difference, CP processes control the network, so you need to connect this application management to network management


The proposed model

The proposed model


Control channel

Control Channel

  • LMP spec definition of a control channel

    “a pair of mutually reachable interfaces that are used to enable communication between nodes for routing, signaling, and link management“

    • Is this notion specific to the control plane?

    • Does it represent more than just connectivity?

  • Not defined in ITU-T documents

    • The undefined term “Signalling channel” used, with a slightly different meaning


Why model control channels

Why model control channels?

  • Adoption of a well known and standard term.

  • A single CCh object in the model could be shared by multiple adjacencies

  • Direct availability of control plane connectivity status in the model, as well as capability to configure the parameters of the LMP failure detection mechanisms.

  • More intuitive modelling of the GMPLS control channel concept, which would facilitate its understanding.


Why not

Why not?

  • It is not a CP specific concept


How to add cch to the model

How to add CCh to the model

  • Modelling options

    • Use the control channel class in substitution of FlowPoints and the FlowPoint-ProtocolAdjacency class

    • Associate a control channel to two flow points, one at each end. Indirectly, this would relate a control channel to the adjacency that uses it.

    • Associate control channels both to flow points and to protocol adjacencies.

  • In all cases, the control channel may be further associated to the LMP adjacency that manages it.


Example

Example


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