1 / 11

Enhanced LSP Services

draft-papadimitriou-enhanced-LPSs D.Papadimitriou (Alcatel) J.Jones. Enhanced LSP Services. IETF 49th Meeting - San Diego. INTRODUCTION. Current developments on IPO networking challenging same problem as IP:

yoland
Télécharger la présentation

Enhanced LSP Services

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. draft-papadimitriou-enhanced-LPSsD.Papadimitriou (Alcatel)J.Jones Enhanced LSP Services IETF 49th Meeting - San Diego

  2. INTRODUCTION • Current developments on IPO networking challenging same problem as IP: • enhanced service to be included from the beginning within the protocols, mechanisms and parameters used in optical networking • otherwise future needs won't be covered by current IPO developments. • Independently of the implementation, model, protocols, etc. • Current IP developments: • Traffic Engineering and Load Balancing • Protection - Restoration Services • QoS Networks (Integrated or Differentiated) • Privacy (Virtual Private Networks, Security) • Multicast Services

  3. Scope and Objective • Define value added services to be provided by the OTN • Focus non-PSC Optical Transport Network (G-MPLS Signaling) • Objectives (emergent model) • Protocol independent parameters • Model independent parameters • Integration of the needed ‘parameter extensions’ for policy-related services in a distributed approach

  4. Enhanced G-LSP Services • Protection - Restoration Services • Class of Priorities (CoP) • CoS Model • OTN Service Levels • Optical Multicast Services • VPoN Model

  5. OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC OXC AS 6510 G-LSP ID scalable definition: Carrier ID + Identifier (Inter) or Node ID + Identifier (Intra) AS 9350 Example: G-LSP Identification AS 1580 IrDI-NNI IrDI-NNI IrDI-NNI AS 2540 IrDI-NNI

  6. Protection and Restoration Services (1) • Protection service: • Type: internal OTN - source and/or destination drop side • Level: 0:1 - 1:1 - M:N - 1+1 • Path state monitoring: inherent (default) - non-intrusive • Inherent for TDM: LoP and AIS • Inherent for Optical: LoL and LoS • Non-intrusive: Unequipped (default) - misconnection (J0,J1,J2 mismatch) - BER • Priority: related to the link selection • Strategy: revertive (default) or non-revertive

  7. Protection and Restoration Services (2) • Restoration (rerouting) service: • Group: identifies the group to which G-LSP belongs • Status: primary (0 to N) and backup (0 to M) - Client: P and B bit • Priority (recovery priority): associated to G-LSP group • Provisioning: provisioned or not-provisioned (+ max restoration time) • Strategy: revertive (default) or non-revertive

  8. CoS Model • Optical CoS: Best Effort - Bronze - Silver - Gold Services • Per VPoN CoS • CoS Content: • Protection - Restoration • (Class of) Priority - Preemption • Routing Diversity scope • Signaling Security • Signaling Delay • Default Behavior and Carrier specific CoS content supported

  9. CSPF Route [Node 1 [Node 2 [Node 3 [Dest 1; Dest 2]]; Node 4 [Node 5 [Dest 3; Dest 4]]]] OXC OXC OXC OXC OXC Dest 1 1:2 1:2 Dest 2 1:4 Node 2 Node 3 Source Dest 3 Node 1 1:2 1:2 Dest 4 Node 4 Node 5 Optical Multicast • Principle: based optical signal split (1:2) and unidirectional G.LSP • Directionality indicates FAN from source to destinations [1;M] • Optical Multicast concept used as ‘ Partial 1:1 Restoration (P - B bits)

  10. VPoN (Virtual Private optical Networks) Model • VPoN Identifiers • Client ID: CNE Group identifier • User-Group ID: VPN Identifier • VPoN models • based on Client ID and User-Group ID • based only on User-Group ID • VPoN associated features • Address space per VPoN • Isolation of Resources and Protection Groups • Inter and Intra-Group Preemption (depending on internal OTN policy) • G.LSP Disjointness per VPoN

  11. CONCLUSION • Integrate as early as possible enhanced services in the definition of parameters and their support in the OTN • Harmonize the definition and the specifications of the services at UNI and NNI (and corresponding parameters definition) • Include the Protection-Restoration Service, Optical Multicast Services, Class of Priorities (CoP), CoS Model, OTN Service Levels and VPoN Model within the CCAMP/IPO scope • Future improvements (protocol specification): • Optical multicast • Protection-Restoration support at the UNI and NNI • CoS - VPoN model • Objective: WG Document for Network Services in CCAMP WG

More Related