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

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.

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 

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 

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.

Backup Slides Additional Details…

MIB Overview 1.TE-Class Map Table (mplsDsTeClassTable) Allows user to define TE-Classes from Class-Types and Pre-emption priorities supported within these Class-Types. 2.Bandwidth Constraint Table (mplsDsIfBCTable) Allows user to define different bandwidth constraints on a per interfaces basis. AUGMENTs mplsInterfaceConfTable defined in LSR-MIB 3.Local Overbooking Multiplier Table(mplsDsTeIfLOMTable) Allows user to define the overbooking(and underbooking) factors for different Class- Types on a per interface basis. AUGMENTS mplsInterfaceConfTable defined in LSR-MIB 4.Unreserved Bandwidth Table(mplsDsTEIfUnresBwTable) Allows user to monitor the unreserved bandwidth for different TE-Classes on a per interface basis. 5.DSTE Tunnel Table(mplsDsTeTunTable) Allows user to configure the class type associated with TE tunnels AUGMENTS mplsTunnelTable defined in MPLS-TE-MIB 6.DSTE LSP Table(mplsDsTeLspTable) Allows user to monitor DSTE related attributes associated with LSPs AUGMENTs mplsXCTable defined in LSR-MIB

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.