technology agnostic ospf-te extensions for gmpls draft-bccgd-ccamp-gmpls-opsf-agnostic-00 ccamp...
DESCRIPTION
Agenda General agreement Purpose of the document Bandwidth Accounting sub-TLV Example Improvements Next stepsTRANSCRIPT
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Technology agnostic OSPF-TE extensions for GMPLS
draft-bccgd-ccamp-gmpls-opsf-agnostic-00CCAMP WG, IETF 79th Beijing
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Authors/Contributors Sergio Belotti ([email protected]) Diego Caviglia ([email protected]) Daniele Ceccarelli ([email protected]) John Drake ([email protected]) Francesco Fondelli ([email protected]) Pietro Grandi ([email protected]) Dan Li ([email protected]) Lyndon Ong ([email protected]) Jonathan Sadler ([email protected]) Eve Varma ([email protected]) Fatai Zhang ([email protected])
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Agenda General agreement Purpose of the document Bandwidth Accounting sub-TLV Example Improvements Next steps
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General Agreement Agreement among authors/contributors
Extension to encoding in RFC4202 Bandwidth advertisement per signal type Field for distinction between Unreserved
Bandwidth and Max LSP bandwidth advertisement
Priority support
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Purpose of the ID Defining an tool:
Advertising bandwidth per signal type Technology agnostic Future proof Scalable Minimizing recovery time: poor routing is often cause
of crank-backs The Bandwidth Accounting sub-TLV is the
building block for technology specific extensions and enhancements not the solution.
Technology specific documents can improve the BA sub-TLV in order to gain scalability, efficiency etc.
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The root of the tree
Technology Agnostic IDdraft-bccgd-ccamp-gmpls-ospf-agnostic
Bandwidth Accounting sub-TLV
OTN specific IDdraft-ceccarelli-ccamp-gmpls-ospf-g709
SDH specific IDdraft-ong-ccamp-gmpls-ospf-sdh
MPLS-TP specific IDwip
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Bandwidth Accounting - SubTLV
Service Type: e.g. VC4, ODU2, ODUflex M field:
0 - Unreserved Bandwidth 1 - Max LSP bandwidth 2-3 Technology specific (e.g. Available bandwidth for MPLS-TP: unused link
bandwidth available for additional non-traffic engineered IP/LDP forwarding and can be used as input to a node’s equal cost multipath load balancing function”)
T.S. Flags: Technology specific flags to be defined in technology specific documents: e.g. Tributary Slot dimension,
Priority: 8 GMPLS priorities Bandwidth @ Priority: Byte/sec in IEEE floating point unless differently
specified (e.g. OTN number of Service Types)
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Example
Supported priorities 0,3
Link comp #1 (10Gbps) Stype: A fixed Stype: B variable
Link comp #1 (10Gbps) Stype: C fixed Stype: B variable
Multiple variable service stype can be advertised
A BLC #1–10G-A,BLC #2–40G-B,C
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Improvements Bandwidth Efficiency – Priority bitmap
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Next steps
Collect feedbacks from the meeting Continue collecting feedbacks from the ML Work on technology specific documents upon
WG consensus OTN
SDH
MPLS-TP
WG document?
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QUESTIONS ?
THANK YOU