[CLUE-Tech] CLUE: DSL - PCISYS

Randy Arabie rrarabie at arabie.org
Fri Jul 5 06:29:41 MDT 2002


On Thu, 4 Jul 2002, Frank Whiteley wrote:

<-----SNIP----->

> > * Matt Gushee (mgushee at havenrock.com) wrote:
> >

<-----SNIP----->

> > It is 'show errors' that gave it to me. I got the following lines with
> line quality:
> >
> >  4 000:00:00:11 ATM        Info       Wan0 Up*, +4.9 dB TX Power,
> > +15.7 dB Rem TX Power, 27 dB RX Gain, No Change Margin
> >  5 000:00:00:11 ATM        Info       Wan0 Up*, 39 dB Line Quality
> > ...
> > 10 000:01:50:40 ATM        Info       Wan0 Up*, +4.9 dB TX Power,
> > 15.7 dB Rem TX Power, 27 dB RX Gain, No Change Margin
> > 11 000:01:50:40 ATM        Info       Wan0 Up*, 40 dB Line Quality

<-----SNIP----->

> Try
> 
> show int wan0
> 
> This will display your wan0 stats
> 
> Frank Whiteley
> Greeley

My 'show errors' does not show the dB Line Quality...different version of CBOS?

Mine is CBOS v2.4.3

'show int wan0' does show me lots of information, but most of it I don't really
know if it is good or bad.  Would anyone mind interpreting for me?

I've pasted the output of both commands below.  Things that I see as potential 
important measures are:

	- crc_errors seem to be causing outages.  Is that common?
	- my upstream data rate is reported as 256 Kbps. I ordered DSL Deluxe
		(650 Kbps UP / 256 Kbps DOWN), and Qworst is billing me for 
		that!
	- there are some measures of dB reported in the 'show int wan0' seciton,
		but I'm not sure which is most important.  It shows that my 
		local attenuation is 35.5dB (Good?) and remote attenuation is 
		31.5dB (not so Good?).

#####################################################

snitch>show errors
- Current Error Messages -
## Ticks        Module     Level      Message
 0 005:12:33:15 ADSL       Info       crc_errors(249) exceeded threshold.
 1 005:12:33:15 ATM        Info       Wan0 Down
 2 005:12:33:16 ATM        Info       WAN 0 physical layer is down
 3 005:12:33:16 COMMANDER  Info       WAN 0 physical layer is down
 4 005:12:33:16 PPP        Info       PPP Down Event on wan0-0
 5 005:12:33:29 ATM        Info       Wan0 Up
 6 005:12:33:29 PPP        Info       PPP Up Event on wan0-0
 7 005:12:33:34 PPP        Info       LCP open on wan0-0
 8 005:12:33:34 PPP        Info       IPCP Negotiated IP Address XXX.XXX.XXX.XXX on wan0-0
 9 005:12:33:34 PPP        Info       IPCP Negotiated IP Subnet Mask 255.255.255.0
10 005:12:38:51 ADSL       Info       crc_errors(83) exceeded threshold.
11 005:12:38:51 ATM        Info       Wan0 Down
12 005:12:38:51 ATM        Info       WAN 0 physical layer is down
13 005:12:38:51 COMMANDER  Info       WAN 0 physical layer is down
14 005:12:38:51 PPP        Info       PPP Down Event on wan0-0
15 005:12:39:05 ATM        Info       Wan0 Up
16 005:12:39:05 PPP        Info       PPP Up Event on wan0-0
17 005:12:39:10 PPP        Info       LCP open on wan0-0
18 005:12:39:10 PPP        Info       IPCP Negotiated IP Address XXX.XXX.XXX.XXX on wan0-0
19 005:12:39:10 PPP        Info       IPCP Negotiated IP Subnet Mask 255.255.255.0

	<-----SNIP----->

Total Number of Error Messages: 274

snitch>show int wan0
wan0   ADSL Physical Port
       Line Trained
Actual Configuration:
  Overhead Framing:           3
  Trellis Coding:             Enabled
  Standard Compliance:        T1.413
  Downstream Data Rate:       256 Kbps
  Upstream Data Rate:         256 Kbps
  Interleave S Downstream:    16
  Interleave D Downstream:    4
  Interleave R Downstream:    16
  Interleave S Upstream:      16
  Interleave D Upstream:      4
  Interleave R Upstream:      16
  Modem Microcode:            G96 
  DSP version:                0
  Operating State:            Showtime/Data Mode
Configured:
  Echo Cancellation:          Disabled
  Overhead Framing:           3
  Coding Gain:                Auto
  TX Power Attenuation:       0dB
  Trellis Coding:             Enabled
  Bit Swapping:               Disabled
  Standard Compliance:        T1.413
  Remote Standard Compliance: T1.413
  Tx Start Bin:               0x6
  Tx End Bin:                 0x1f
  Data Interface:             Utopia L1
Status:
  Local SNR Margin:           6.5dB
  Local Coding Gain:          7.5dB
  Local Transmit Power:       11.6dB
  Local Attenuation:          35.5dB
  Remote Attenuation:         31.5dB
Local Counters:
  Interleaved RS Corrected Bytes:         2496014
  Interleaved Symbols with CRC Errors:    392384
  No Cell Delineation Interleaved:        359562
  Out of Cell Delineation Interleaved:    653506
  Header Error Check Counter Interleaved: 849963
  Count of Severely Errored Frames:       621067
  Count of Loss of Signal Frames:         588426
Remote Counters:
  Interleaved RS Corrected Bytes:         719491
  Interleaved Symbols with CRC Errors:    555950
  No Cell Delineation Interleaved:        425373
  Header Error Check Counter Interleaved: 816813
  Count of Severely Errored Frames:       621824
  Count of Loss of Signal Frames:         621194
snitch>exit
Connection closed by foreign host.
-- 
Cheerio!

Randy




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