Technology agnostic OSPF-TE extensions for GMPLS

draft-bccgd-ccamp-gmpls-opsf-agnostic-00CCAMP WG, IETF 79th Beijing

Authors/Contributors Sergio Belotti (sergio.belotti@alcatel-lucent.com) Diego Caviglia (diego.caviglia@ericsson.com) Daniele Ceccarelli (daniele.ceccarelli@ericsson.com) John Drake (jdrake@juniper.net) Francesco Fondelli (francesco.fondelli@ericsson.com) Pietro Grandi (pietro_vittorio.grandi@alcatel-lucent.com) Dan Li (danli@huawei.com) Lyndon Ong (Lyong@Ciena.com) Jonathan Sadler (Jonathan.Sadler@tellabs.com) Eve Varma (eve.varma@alcatel-lucent.com) Fatai Zhang (zhangfatai@huawei.com)

Agenda General agreement Purpose of the document Bandwidth Accounting sub-TLV Example Improvements Next steps

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

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.

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

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)

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

Improvements Bandwidth Efficiency – Priority bitmap

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?

QUESTIONS ?

THANK YOU