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OSPF-TE extensions for GMPLS Control of Evolving G.709 OTN

CCAMP WG, IETF 80 th Prague. OSPF-TE extensions for GMPLS Control of Evolving G.709 OTN. Authors/Contributors. draft-ceccarelli-ccamp-gmpls-ospf-g709-05 + draft-ashok-ccamp-gmpls-ospf-g709-03. Steve Balls Sergio Belotti Malcom Betts Diego Caviglia Daniele Ceccarelli John Drake

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OSPF-TE extensions for GMPLS Control of Evolving G.709 OTN

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  1. CCAMP WG, IETF 80th Prague OSPF-TE extensions for GMPLS Control of Evolving G.709 OTN

  2. Authors/Contributors draft-ceccarelli-ccamp-gmpls-ospf-g709-05 + draft-ashok-ccamp-gmpls-ospf-g709-03 • Steve Balls • Sergio Belotti • Malcom Betts • Diego Caviglia • Daniele Ceccarelli • John Drake • Francesco Fondelli • Xihua Fu • Pietro Grandi • Ashok Kunjidhapatham • Dan Li • Biao Lu • Cyril Margaria • Lyndon Ong • Khuzema Pithewan • Rajan Rao • Jonathan Sadler • Eve Varma • Yunbin Xu • Fatai Zhang

  3. Switching vs Terminating model • IF1: ISCD • IF2: IMCD • IF3: ISCD+IMCD • IF4: • ODUx ISCD • ODUy IMCD ODU (S) IF 1 ODU (T,S) ODU (T) IF 2 IF 3 IF 4 ODUx(S) ODUy (T)

  4. Procedures • Switching capability advertisement: • 1 ISCD for each ODU (S) • ODU (S) – Advertised into the OTN-ISCD (new switch cap but ISCD format) via IS Bandwidth sub-TLV in the SCSI with signal type. • ODUj - ODUk (S) relation [optional] – Advertised into the SCSI of the OTN-ISCD via Component Link sub-TLV. (mirror info of the IMCD). • Termination capability advertisement: • 1 IMCD for each Terminable Higher Order ODU including the related hierarchy • ODUk • Intermediate ODU layer for FAs • ODUk (T) – Advertised into the IMCD (new link type sub-TLV) via IM Bandwidth Accounting sub-TLV

  5. ISCD MAX LSP bandwidth: • Fixed ODU = Nominal Bandwdith • ODUflex = 0 IS-Bandwidth sub-TLV: indicates: • the signal type unreserved bandwidth expressed in number of containers, per priority (Type=1) • OR the MAX LSP bandwidth in case of ODUflex (Type=2) Component link type sub-TLV – [OPTIONAL]: to be used in case of link bundling and ODUj being advertised. It indicates the types of number of available related ODUk (server layer). ISCD IS-Bandwidth sub-sub-TLV Component link type sub-sub-TLV

  6. IMCD IMCD IM - Bandwidth sub-TLV: indicates the ODUk signal type (without muxing hierarchy) unreserved bandwidth expressed in number of containers. • G-PID field (same of signaling) indicating the type of ODUk(T) being advertised • Multiplexing sub-TLV: • Indicates the multiplexing hierarchy related to the given ODUk. • 1 GPID for each stage of multiplexing with related bandwidth • No correlation among GPIDs • OPEN ISSUE: multiple GPIDs inside the same IMCD IM Bandwidth sub-sub-TLV Multiplexing sub-sub-TLV GPID

  7. QUESTIONS ? THANK YOU

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