LMP Test Messages Extensions for Evolutive OTN - PowerPoint PPT Presentation

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LMP Test Messages Extensions for Evolutive OTN

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... beller_at_alcatel-lucent.com. Agenda. Link Connectivity ... ODU TTI, OUT TTI and 6 levels of TCM. Trace Monitoring (2/2) Trace Object Class: [RFC 4207] ... – PowerPoint PPT presentation

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Title: LMP Test Messages Extensions for Evolutive OTN


1
LMP Test Messages Extensions for Evolutive OTN
  • draft-ceccarelli-ccamp-gmpls-g709-lmp-test-01
  • CCAMP WG, IETF 76th Hiroshima

2
Authors/Contributors
  • Daniele Ceccarelli
  • daniele.ceccarelli_at_ericsson.com
  • Diego Caviglia
  • diego.caviglia_at_ericsson.com
  • Francesco Fondelli
  • francesco.fondelli_at_ericsson.com
  • Fatai Zhang
  • zhangfatai_at_huawei.com
  • Dan Li
  • danli_at_huawei.com
  • Marco Corsi
  • marco.corsi_at_altran.it
  • Dieter Beller
  • dieter.beller_at_alcatel-lucent.com

3
Agenda
  • Link Connectivity Verification RFC4204
  • Evolutive OTN needs LMP support to test new types
    of signal.
  • BEGIN_VERIFY class
  • Encoding Type
  • Verify Transport Mechanism
  • Transmission Rate
  • Trace Monitoring
  • New TRACE object for evolutive OTN
  • G.7714.1 Discovery Response msg for Layer
    Adjacency Discovery

4
Link Connectivity Verification (1/2)
  • In band transmission of test messages over data
    link to verify physical connectivity, discover DP
    resources, exchanged IF_Id
  • Begin Verify Class RFC4204

5
Link Connectivity Verification (2/2)
  • EncType identifies the type of encoding
    supported by the interface
  • 7 - Digital Wrapper (consistent with LSP
    enc.type RSVP RFC3471)
  • Verify Transport Mechanism 16 bit mask defining
    the transport mechanisms for the test messages
  • 0x01 OTUk TTI 64 byte Test Message
  • 0x02 ODUk TTI 64 byte Test Message
  • 0x04 GCC0 Test Message over the GCC0
  • TransmissionRate transmission rate of the data
    links where the link verification procedure can
    be performed

6
Trace Monitoring (1/2)
  • Trace Object Class RFC 4207
  • New C-Type (2)
  • Trace Type Used to identify the type of trace
    message
  • ODU TTI, OUT TTI and 6 levels of TCM

7
Trace Monitoring (2/2)
  • Trace Object Class RFC 4207
  • New C-Type (2)
  • Trace Length Expresses the length of the trace
    message in bytes
  • Trace Message
  • Includes the value of the expected message to be
    received in-band.
  • The valid length and value combinations are
    determined by the ITU.T G.709 recommendation
  • Non negotiable object

8
Discovery Response Message for Layer Adjacency
Discovery
  • G.7714.1 Automatic layer adjacency discovery
    procedure applicable to G.709 OTN
  • Discovery message sent via TTI
  • Appendix III of G.7714.1 describes how to send a
    discovery response message to the originator
    (discovery agent) via LMP.
  • TraceMonitor message RFC4207 is used to convey
    the discovery response message.
  • Discovery response message
    attributes mapping into TraceMonitor
    message objects or other fields of
    the LMP message

9
Next steps
  • Keep on monitoring G.7714.1
  • Reflect OTN capabilities into
  • LMP behavior negotiation ID
  • OTN test bit in ENHANCED_BEHAVIOR_CONFIG
    (c-type3)
  • OTN control framework ID

10
QUESTIONS ?
THANK YOU
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