Enhanced LSP Services

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Enhanced LSP Services
draft-papadimitriou-enhanced-LPSsD.Papadimitriou
(Alcatel)J.Jones

• IETF 49th Meeting - San Diego

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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

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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

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Enhanced G-LSP Services

• Protection - Restoration Services
• Class of Priorities (CoP)
• CoS Model
• OTN Service Levels
• Optical Multicast Services
• VPoN Model

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Example G-LSP Identification
AS 1580
IrDI-NNI
IrDI-NNI
IrDI-NNI
AS 2540
IrDI-NNI
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Protection and Restoration Services (1)

• Protection service
• Type internal OTN - source and/or destination
  drop side
• Level 01 - 11 - MN - 11
• 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

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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

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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

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Optical Multicast

• Principle based optical signal split (12) and
  unidirectional G.LSP
• Directionality indicates FAN from source to
  destinations 1M
• Optical Multicast concept used as  Partial 11
  Restoration (P - B bits)

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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

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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