Download presentation
Presentation is loading. Please wait.
Published byFranklin Lucas Modified over 9 years ago
1
Technology agnostic OSPF-TE extensions for GMPLS draft-bccgd-ccamp-gmpls-opsf-agnostic-00 CCAMP WG, IETF 79 th Beijing
2
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)
3
Agenda General agreement Purpose of the document Bandwidth Accounting sub-TLV Example Improvements Next steps
4
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
5
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.
6
The root of the tree Technology Agnostic ID draft-bccgd-ccamp-gmpls-ospf-agnostic Bandwidth Accounting sub-TLV OTN specific ID draft-ceccarelli-ccamp-gmpls-ospf-g709 SDH specific ID draft-ong-ccamp-gmpls-ospf-sdh MPLS-TP specific ID wip
7
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)
8
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 AB LC #1–10G-A,B LC #2–40G-B,C
9
Improvements Bandwidth Efficiency – Priority bitmap
10
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?
11
QUESTIONS ? THANK YOU
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.