DiffServaware MPLS Traffic Engineering Network Management Information Base Using SMIv2 draftnadeaump

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Diff-Serv-aware MPLS Traffic Engineering Network
Management Information Base Using
SMIv2(draft-nadeau-mpls-dste-mib-01.txt)

• Thomas D. Nadeau
• (tnadeau_at_cisco.com)
• Sanjay Choudhury
• (sanjaya.choudhury_at_marconi.com)

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Why is this draft needed?

• To deploy DSTE, the domain administrator needs to
  perform several per-LSR, per-link and per-LSP
  configurations, as presented in
  draft-ietf-tewg-diff-te-proto-03.txt.
• platform independent.
• Ensure that the TE-Class Map is configured in a
  uniform manner across all the participating DSTE
  LSRs.
• When used with a NMS, a standardized DSTE-MIB
  can help the administrator to manage such DSTE
  domain wide configurations.
• Linkage to MPLS-TE MIB.

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What does the draft support?

• Configuration/Monitoring supported
• Per-LSR configurations
• Ability to configure the TE-Class Map ?
• Per-Interface configurations
• Ability to configure Bandwidth Constraints ?
• Ability to configure Local Overbooking
  Multiplier ?
• Ability to monitor the available bandwidth for
  each TE-Class ?
• Per-LSP configurations
• Ability to setup MPLS TE Tunnels with a specific
  CT ?
• Ability to monitor the CTs being used by TE LSPs
  ?
• Special scenario configurations
• Ability to configure the DSTE-LSR in an hybrid
  environment ?
• Ability to configure the DSTE LSR to behave like
  a TE LSR ?

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BC Models supported

• Not tightly coupled with any of the BC Models ?
• Flexible to support new BC models in the future.
• Supports both RDM and MAM ?

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Open Issues/Recommendation

• Which WG this draft belongs to?
• Reasons for including in MPLS-WG
• The MIB presented in this draft extends the
  existing MPLS MIBs defined by the MPLS-WG (to add
  support for DiffServ-aware MPLS TE).
• Reasons for including in TE-WG
• The primary aim of the MIB is to support the TEWG
  document draft-ietf-tewg-diff-te-proto-03.txt.
• TE Expertise present in the TE WG.
• Accept this document as a WG document.
• Discussed on TE WG mailing list.
• Some changes made based on these discussions.

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Backup Slides

• Additional Details

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MIB Overview

• TE-Class Map Table (mplsDsTeClassTable)
• Allows user to define TE-Classes from Class-Types
  and Pre-emption priorities supported within these
  Class-Types.
• Bandwidth Constraint Table (mplsDsIfBCTable)
• Allows user to define different bandwidth
  constraints on a per interfaces basis.
• AUGMENTs mplsInterfaceConfTable defined in
  LSR-MIB
• Local Overbooking Multiplier Table(mplsDsTeIfLOMTa
  ble)
• Allows user to define the overbooking(and
  underbooking) factors for different Class-Types
  on a per interface basis.
• AUGMENTS mplsInterfaceConfTable defined in
  LSR-MIB
• Unreserved Bandwidth Table(mplsDsTEIfUnresBwTable)
  
• Allows user to monitor the unreserved bandwidth
  for different TE-Classes on a per interface
  basis.
• DSTE Tunnel Table(mplsDsTeTunTable)
• Allows user to configure the class type
  associated with TE tunnels
• AUGMENTS mplsTunnelTable defined in MPLS-TE-MIB
• DSTE LSP Table(mplsDsTeLspTable)
• Allows user to monitor DSTE related attributes
  associated with LSPs
• AUGMENTs mplsXCTable defined in LSR-MIB

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TBD

• Latest revision of DSTE-PROTO draft allows
  administrators to configure the BC Model on a per
  interface basis.
• Need to update the MIB to allow such
  configuration.
• Need to update the NOTIFICATION section of the
  MIB.
• We may need to update the draft as and when new
  BC Models gets finalized by the WG.