adslmib 3 1

New Generation ADSL MIBBaseline Text Proposal : New Generation ADSL MIB Baseline Text Proposal Presented by: Moti Morgenstern, ECI Telecom draft-ietf-morgenstern-ngadsl-00.txt


Introduction : Introduction “draft-ietf-morgenstern-ngadsl-00.txt” is presented to the IETF as a proposed baseline for the NG-ADSL MIB. NG-ADSL MIB is also known as ADSL2 MIB The draft Is based on ITU-997.1 and its amendment. Usually takes DSL Forum’s TR-90 as a reference. …Not final People may eventually choose to migrate from the current ADSL MIB (RFC 2662) to the NG-ADSLMIB.


Textual Conventions : Textual Conventions There are plenty of textual conventions (TCs) in the current document. Probably, most of those TCs will be relocated to form a separate document.


Topics covered by the NG-ADSL MIB : Topics covered by the NG-ADSL MIB Line/Channel/Sub-Carrier Status Line Inventory Line Commands Line Configuration (Spectrum, Channels/Services, PM Thresholds) Performance Monitoring (PM) Results (Current and History)


TR-90 compared to the Draft MIB : TR-90 compared to the Draft MIB


adsl2LineStatusTable : adsl2LineStatusTable Based on “ATU Line Status” table (5.2.1) in TR-90 The actual ADSL mode selected (See note) The actual Power management state (See note) Initialization result (failure cause, See note) Last initialization state Downstream/Upstream ATUC/ATUR Status (alarms) Loop Attenuation Downstream/Upstream Signal Attenuation Downstream/Upstream SNR Margin Downstream/Upstream Maximum Attainable Data Rate Downstream/Upstream Actual Power Spectrum Density Downstream/Upstream Actual Aggregate Transmit Power Downstream/Upstream Note: In TR-90 it is in “ADSL Line” table (5.1.1), but we prefer to have it here because it is a Read-Only object.


adsl2ChannelStatusTable : adsl2ChannelStatusTable Based on “ATU Channel Status” table (5.2.2) in TR-90 The actual Data rate Downstream/Upstream The previous Data rate Downstream/Upstream The actual Interleaved Delay Downstream/Upstream ATUC/ATUR ATM Status (In G.997.1 but not in TR-90) No Cell Delineation Loss of Cell Delineation Relevant if the Data Path is ATM


adsl2SCStatusTable (1) : adsl2SCStatusTable (1) First part is based on “ATU Sub-Carrier Status” table (5.5.1) in TR-90 Sub-Carrier level SNR measurement time not included SNR Margin Downstream/Upstream Bits Allocation Downstream/Upstream Gains Allocation Downstream/Upstream Channel Characteristics Downstream Linear representation Scale Linear representation Real part of the results Linear representation Imaginary part of the results Logarithmic representation Measurement Time Logarithmic representation of the results Channel Characteristics Upstream (same structure)


adsl2SCStatusTable (2) : adsl2SCStatusTable (2) Quiet Line Noise (QLN) Downstream QLN PSD Measurement Time QLN PSD results Quiet Line Noise (QLN) Upstream (same structure) May add TSSi Downstream/Upstream Second part is Line Level Status (not in 5.5.1) Loop Attenuation Downstream/Upstream Signal Attenuation Downstream/Upstream SNR Margin Downstream/Upstream Actual SNR Downstream/Upstream Maximum Attainable Data Rate Downstream/Upstream Actual Aggregate Transmit Power Downstream/Upstream


adsl2LineInventoryTable : adsl2LineInventoryTable Based on first objects in “ADSL Termination Unit” table (5.1.3) in TR-90 ATU G.994.1 Vendor ID ATU System Vendor ID ATU Version Number ATU Serial Number ATU Self-Test Result ATU ADSL Transmission System Capabilities The rest of the objects are not inventory They are in the same table that provides the current Line PM parameters


adsl2LineCommandTable : adsl2LineCommandTable A different approach for objects in “ADSL Line” table (5.1.1) in TR-90 Power Management State Forced (PMSF) Loop Diagnostics Mode Forced (LDSF) LDSF result


adsl2LineConfigTable : adsl2LineConfigTable The first two objects in “ADSL Line” table (5.1.1) of TR-90 Pointer to ADSL Line Configuration Template Should add a pointer to ADSL Line Threshold Template


adsl2LineConfTemplateTable : adsl2LineConfTemplateTable Originally the structure of the template in TR-90 is Pointer to ADSL Line Spectrum Profile Pointer to ADSL Line Service Profile The Line Service Profile is actually a frame May include multiple instances of channel profiles In this draft the structure is Pointer to ADSL Line Spectrum Profile Channel 1 configuration Pointer to a channel profile Rate Adaptation Ratio Downstream/Upstream Same for Channels 2-4 The advantages of this approach: Reduces the number of profile layers Reduces the number of different channel profiles required


adsl2LineConfTemplateTable (Illustration) : adsl2LineConfTemplateTable (Illustration) Configuration Template Spectrum Profile Service Profile Channel Profile Channel Profile Channel Profile Channel1 Profile RA ratio DS/US Channel1 Configuration Template Spectrum Profile Channel Profile Channel Profile Channel Profile Channel1 Profile 0 RA ratio DS/US Channel1 … RA ratio DS/US Channel4 TR-90 Proposed MIB


adsl2LineConfProfTable (1) : adsl2LineConfProfTable (1) Based on “ADSL Line Spectrum Profile” table (5.1.7) in TR-90 Sub Carriers Mask Downstream/Upstream Rate Adaptation Mode Downstream/Upstream Up-shift Noise Margin Downstream/Upstream Minimum Time Interval for Up-shift Rate Adaptation Downstream/Upstream Down-shift Noise Margin Downstream/Upstream Minimum Time Interval for Down -shift Rate Adaptation Downstream/Upstream Target Noise Margin Downstream/Upstream Maximum Noise Margin Downstream/Upstream Minimum Noise Margin Downstream/Upstream Minimum Overhead Rate Downstream/Upstream


adsl2LineConfProfTable (2) : adsl2LineConfProfTable (2) (Continued from previous slide) ATU Transmission System Enabling (ATSE) Power Management State Enabling (PMMode) L0-TIME L2-TIME L2-ATPR L2-ATPRT Should add RFIBANDS downstream


adsl2LineConfProfTable (3) : adsl2LineConfProfTable (3) The following are objects that will move into a table similar to “ADSL Mode-Specific PSD Configuration” (5.1.8) in TR-90 Maximum Nominal Power Spectral Density Downstream/Upstream Maximum Nominal Aggregate Transmit Power Downstream/Upstream Maximum Nominal Upstream Receive Power The following parameters should also appear in that table PSD Mask Downstream PSD Mask Selection Upstream


adsl2ChConfProfileTable : adsl2ChConfProfileTable Based on “ADSL Channel Configuration” table (5.1.6) in TR-90 Minimum Data Rate Downstream/Upstream Minimum Reserved Data Rate Downstream/Upstream Maximum Data Rate Downstream/Upstream Rate Adaptation Ratio Downstream/Upstream is already covered Minimum Data Rate in low power state Downstream/Upstream (Upstream is not covered in TR-90) Maximum Interleave Delay Downstream/Upstream Minimum Impulse Noise Protection Downstream/Upstream Maximum Bit Error Ratio Downstream/Upstream Data Rate Threshold Upshift Downstream/Upstream IMA mode enable/Disable (Not covered in TR-90)


adsl2PMLineCurrTable : adsl2PMLineCurrTable The “current” part of the “ATU Line Performance” table (5.3.1) in TR-90 that refers to the ATU layer 15 minutes current interval Forward Error Correction Seconds - Line Errored Seconds – Line Severely Errored Seconds – Line Loss of Signal Seconds – Line Unavailable Seconds – Line 24 hours current interval (same structure) Also includes last 6 objects from “ADSL Termination Unit” table (5.1.3) in TR-90 Number of previous 15-minute Intervals Number of previous invalid 15-minute Intervals Current 15-minute Interval Elapsed Time Number of previous 1-day Intervals Number of previous invalid 1-day intervals Current 1-day Interval Elapsed Time


adsl2PMLineInitTable : adsl2PMLineInitTable The “current” part of the “ATU Line Performance” table (5.3.1) in TR-90 that refers to the whole line 15 minutes current interval Full Initializations Failed Full Initializations Short Initializations Failed Short Initializations 24 hours current interval (same structure)


adsl2PMLineHist15MinTable : adsl2PMLineHist15MinTable The 15 minutes history part of the “ATU Line Performance” table (5.3.1) in TR-90 that refers to the ATU layer Monitored Time Forward Error Correction Seconds - Line Errored Seconds – Line Severely Errored Seconds – Line Loss of Signal Seconds – Line Unavailable Seconds – Line Interval Validity


adsl2PMLineHist1DayTable : adsl2PMLineHist1DayTable The 1 day history part of the “ATU Line Performance” table (5.3.1) in TR-90 that refers to the ATU layer Monitored Time Forward Error Correction Seconds - Line Errored Seconds – Line Severely Errored Seconds – Line Loss of Signal Seconds – Line Unavailable Seconds – Line Interval Validity


adsl2PMLineInitHist15MinTable : adsl2PMLineInitHist15MinTable The 15 minutes history part of the “ATU Line Performance” table (5.3.1) in TR-90 that refers to the whole line Full Initializations Failed Full Initializations Short Initializations Failed Short Initializations Interval Validity


adsl2PMLineInitHist1DayTable : adsl2PMLineInitHist1DayTable The 1 day history part of the “ATU Line Performance” table (5.3.1) in TR-90 that refers to the whole line Full Initializations Failed Full Initializations Short Initializations Failed Short Initializations Interval Validity


adsl2PMChCurrTable : adsl2PMChCurrTable The “current” part of the “ATU Channel Performance” table (5.3.2) in TR-90 15 minutes current interval Code Violations – Channel Forward Error Corrections – Channel 24 hours current interval (same structure) Also includes the following channel level objects (which do not appear in TR-90) Number of previous 15-minute Intervals Number of previous invalid 15-minute Intervals Current 15-minute Interval Elapsed Time Number of previous 1-day Intervals Number of previous invalid 1-day intervals Current 1-day Interval Elapsed Time


adsl2PMChHist15MinTable : adsl2PMChHist15MinTable The 15 minutes part of the “ATU Channel Performance” table (5.3.2) in TR-90 Monitored Time Code Violations – Channel Forward Error Corrections – Channel Interval Validity


adsl2PMChHist1DTable : adsl2PMChHist1DTable The 1 day part of the “ATU Channel Performance” table (5.3.2) in TR-90 Monitored Time Code Violations – Channel Forward Error Corrections – Channel Interval Validity