Subject: Optical Interface MIB further update proposal

From: "Lam, Hing-Kam (Kam)" <[email-masked]>
Date: Wed, 18 Jul 2001 11:48:48 -0400

Dear All,

The optical mib draft-ietf-atommib-opticalmib-00.txt
(http://www.ietf.org/internet-drafts/draft-ietf-atommib-opticalmib-00.txt,
annouced on July 6) has been incorporated with the changes which were agreed
upon at the last ietf meeting.

In the recent ITU-T Q9/15 Rapporteur meeting (June 20-21), a lot of progress
have been made to the ITU-T draft recommendation G.798 (Characteristics of
Optical Transport Network Hierarchy Equipment Functional Blocks), which is
one of the main source of input to the MIB. We would like to propose
additional update to the MIB related to optical performance monitoring (PM)
and to further align it with the latest version of G.798. We also want to
proposal some editorial changes to improve the readability of the MIB. 

Below is a list of changes that we would like to propose. In order to show
the exact changes, we plan to submit an updated version of the MIB so that
we can discuss it before and during the London meeting. Any comments?

Editorial changes for improving the readability of the MIB:
      - Changed name of MIB from OTN-MIB to OPT-IF-MIB
      - Changed name of MIB module from otnMIB to optIfMibModule
      - Changed all 'otn' prefixes to 'optIf'
      - Added IntervalNumber textual convention and used it as
        the syntax for all IntervalNumber objects
      - Moved PM interval objects from OTSn configuration table
        to new PerfMon group
      - Changed NbrOfValidIntervals object to NumIntervals (i.e.,
        total number instead of valid number of intervals)
      - Changed object ending in NbrOfInvalidIntervals to end
        with NumInvalidIntervals
      - Changed names in interval and previous day tables to
        include 'Last' to denote that the value is the last value
        of that interval/day.
      - Changed the names of all objects ending in TimActDisabled
        to end with TIMActEnabled; this also improved the
        semantics such that a true value means enabled
      - Changed the names of all objects ending in InputPwr
        to end with InputPower
      - Changed the names of all objects ending in LoopThreshold
        to end with LowerInputPowerThreshold or
        LowerOutputPowerThreshold, as appropriate
      - Changed the names of all objects ending in IntervalNbr
        to end with IntervalNumber
      - Changed the names of all objects ending in SafetyThreshold
        to end with UpperOutputPowerThreshold
      - Added compliance specifications and groups
      - Updated descriptions
      - Made formatting changes

Related to optical PM:
      - Removed all PMCounterReset objects
      - Removed OTS sink LaserTemp objects
      - Added OMS source and sink LaserTemp objects
      - Added OCh source LaserTemp objects
      - Added UNITS clause to all LaserTemp objects
      - Added UpperInputPowerThreshold objects to the sink tables
      - Added current and previous day tables and scalar objects
      - Changed MAX-ACCESS of all Threshold objects to read-write

Align with G.798:
      - Replace ExTI by ExSAPI and ExDAPI
      - Change TimDetDis to TimDetMo (values: Off, SAPI, DAPI, & 
        SAPI+DAPI)
      - Change TTI Received to TTI Accepted
      - Add AcTIStatus - Accepted TTI Status (values: stable, unstable)
      - Add SinkAdaptActive, SourceAdaptActive, and SinkFECEnabled 
        to OCh
      - Update the currectStatus tables to align with the corresponding 
        changes in G.798 from the previous version. 
        For OTSn, add BDI, remove SSFP, SSFO, SSF, & LOOP.
        For OMSn, add BDI.
        For OCh, add SSF.
        For ODUkP, remove AIS.
      - Add configuration parameters DEGThr and DEGM to OTUk, ODUkP, 
        and ODUkT
      - Move the ODUkT configuration parameters CurrentStatus 
        and AdminStateSink into the ODUkTSinkConfig Table
      - Move the ODUkT configuration parameter AdminStateSource
        into the ODUkTSourceConfig Table
      - Add additional references, including ITU-T G.806, G.874.1, 
        and G.cemr.

Regards,
Kam, Mark, and Anni