OSPF-TE Extensions for MLNMRN based on OTN draft-rao-ccamp-mlnmrn-otn-ospfte-ext-02 Rajan Rao Khuzema Pithewan

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Presentation transcript:

OSPF-TE Extensions for MLNMRN based on OTN draft-rao-ccamp-mlnmrn-otn-ospfte-ext-02 Rajan Rao Khuzema Pithewan IETF-87 Jul 31 st 2013

Overview This draft focuses on the control plane interworking of OTN with other technologies. Specifically, identify what information is required to be advertised in OSPF, so as to compute a path that transitions from OTN to other technology namely Ethernet, SONET/SDH, or different multiplexing hierarchy of OTN

Example Hybrid Node Ethernet Switch OTN Switch 10GigE 100GigE OTU4 300G IACD1 Upper SwitchCap/EncTyp : PSC/Ethernet Lower SwitchCap/EncType : OTN-TDM/G.709 ODUk SCSI : SignalType+Hierarchy ODU2-ODU4 (For 10GigE) Advertises ISCD_PSC, IACD1 Advertises ISCD_OTN, IACD1 IACD2 Advertises ISCD_PSC, IACD2 Advertises ISCD_OTN, IACD1 IACD2 Upper SwitchCap/EncTyp : PSC/Ethernet Lower SwitchCap/EncType : OTN-TDM/G.709 ODUk SCSI : SignalType+Hierarchy ODU4(For 100GigE)

Changes from 01 to Layer ID TLV is modified to carry additional information to infer, if the Layer Identification belongs to upper region or lower region R bit is used to make sense whether the Layer ID is for Lower region or upper region. 1 means upper region and 0 means lower.

Changes from 01 to Added support for SONET/SDH layer Identification SUKLM bits signifies the presence of SONET/SDH layers and these bits together fully specifies the multiplexing hierarchy.

Next Steps Workgroup feedback is welcome