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    Does this mean that Seamless Rate Adaptation (SRA) has worked?

    This is a discussion on Does this mean that Seamless Rate Adaptation (SRA) has worked? within the Sky Router forums, part of the Sky Broadband help category; I suddenly got no internet activity, which is unusual since I've implemented MOGNUTS utility setting target noise margin to 9dB. ...

    1. #1
      pete_run's Avatar
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      Does this mean that Seamless Rate Adaptation (SRA) has worked?

      I suddenly got no internet activity, which is unusual since I've implemented MOGNUTS utility setting target noise margin to 9dB. So as usual I logged onto my Netgear Router and checked my noise margin with SHOW STATISTICS. I was most surprised to see the NOISE MARGIN dropping in front of my eyes to about 2.5 (connection speed about 3000).

      After about a minute (very rough estimate) it bounced back to about 10 dB, but with reduced connection speed of 1920 kbps and recovered. Normally when my internet grinds to a halt, a reboot of the router is required to get it going again. This is the first time I have ever seen it change connection speed without a reboot, perhaps I've missed it before.

      Does this mean that Seamless Rate Adaptation (SRA) has worked? From other forum threads, I thought it did not work. Has there been some sort of update? My Firmware Version is V1.02.28, which I think is still the original.

      Stats from MOGNUTS if anyone is interested.


      /usr/sbin/adslctl: ADSL driver and PHY status
      Status: Showtime Channel: INTR, Upstream rate = 416 Kbps, Downstream rate = 1920 Kbps
      Link Power State: L0
      Mode: G.DMT
      Channel: Interleave
      Trellis: ON
      Line Status: No Defect
      Training Status: Showtime
      Down Up
      SNR (dB): 10.3 13.0
      Attn(dB): 55.0 31.5
      Pwr(dBm): 16.3 4.3
      Max(Kbps): 2240 928
      Rate (Kbps): 1920 416
      G.dmt framing
      K: 61(0) 14
      R: 16 16
      S: 2 16
      D: 16 2
      ADSL2 framing
      MSGc: 1 1
      B: 127 14
      M: 1 16
      T: 1 1
      R: 16 16
      S: 1.1250 17.0666
      L: 1024 120
      D: 32 2
      Counters
      SF: 83688 83686
      SFErr: 75 0
      RS: 2845406 355665
      RSCorr: 2620 10
      RSUnCorr: 1333 0

      HEC: 72 0
      OCD: 1 0
      LCD: 0 0
      Total Cells: 6443698 0
      Data Cells: 29590 0
      Drop Cells: 0
      Bit Errors: 0 0

      ES: 1966 0
      SES: 1708 0
      UAS: 93 0
      Total time = 7 hours 12 min 43 sec
      SF = 1519393
      CRC = 83757
      LOS = 2624
      LOF = 0
      ES = 1966
      Latest 1 day time = 7 hours 12 min 43 sec
      SF = 1519393
      CRC = 83757
      LOS = 2624
      LOF = 0
      ES = 1966
      Latest 15 minutes time = 12 min 43 sec
      SF = 44873
      CRC = 56
      LOS = 27
      LOF = 0
      ES = 17
      Previous 15 minutes time = 15 min 0 sec
      SF = 50460
      CRC = 11623
      LOS = 224
      LOF = 0
      ES = 177
      Previous 1 day time = 0 sec
      SF = 0
      CRC = 0
      LOS = 0
      LOF = 0
      ES = 0
      15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
      SF = 52930
      CRC = 52722
      LOS = 506
      LOF = 0
      ES = 865
      15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
      SF = 52931
      CRC = 9990
      LOS = 26
      LOF = 0
      ES = 195
      15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
      SF = 52930
      CRC = 17
      LOS = 12
      LOF = 0
      ES = 13



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    3. #2
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      Re: Does this mean that Seamless Rate Adaptation (SRA) has worked?

      SRA is most definitely not implemented nor plans to be from what we know.




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      Re: Does this mean that Seamless Rate Adaptation (SRA) has worked?

      with the errors on your line it looks like a line problem (extention/filter)

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      Re: Does this mean that Seamless Rate Adaptation (SRA) has worked?

      Quote Originally Posted by richone54 View Post
      with the errors on your line it looks like a line problem (extention/filter)
      I accept there were errors, it interestingly coincides with kids getting back home from school, so potentially more traffic. I'm just surprised to see the connection speed change automatically.

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      Re: Does this mean that Seamless Rate Adaptation (SRA) has worked?

      SF = 52930
      CRC = 52722
      LOS = 506
      LOF = 0
      ES = 865
      nearly 100% errors in 15mins, may be worth seeing what gets turned on as it may be the cause
      (my first port of call would be a comparison from the test socket if you have one, not sure if you have already done this from another thread ?)

     

     

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