(PM) our PM3 disco stats, 24 hrs later

Bryan Wann (bwann@cwis.net)
Thu, 4 Mar 1999 23:26:59 -0600 (CST)

Here is the latest data on our PM3 disconnects across 4 POPs
(3.8.2, SW Bell CT1s). "Port Error - Unknown State" still accounts for a
majority of terminations (31% !), and seems to account for a lot of the
disconnects customers are getting. I went back and broke it down by POP,
and have tracked down the errors to two PM3s.

I called Livingston shortly after I posted the first results this
morning, and was told the unknown state errors "could be a plethora of
things"... not a very good starting point.

I have tried measuring the number of port errors on each Sx port, but
nothing obvious happening there; while the distribution of port errors was
not even, it did not have any erratic values that would indicate a
specific series of Sx port were fried. From what I can tell, I don't
think there is a easy way to try to correspond Sx ports with modem Mx
ports. Later I went back and tried to see if the port errors kept
occurring to the same user or set of users, nothing turning up yet either.

Some have suggested that the script I was using
(pm3-discon.pl by Chris Adams <cadams@ro.com> ) could be producing flawed
results, but grepping and wc -l 'ing the logs show the results are right.

The only thing I have to go on right now is to try going out to POP 1
and move the CT1s from PM1 to PM2 and vice versa to see if the port errors
follow the CT1 spans or the PM3. Unfortunately at POP 2 I do not have
any other chassies to swap with.

enjoy... ;(

Aggregate Statistics

normal 68.45% 2376/3471
Port Error - Unknown State 11.64% 404/3471
User Request - Call Circuit Closed 9.62% 334/3471
Lost Carrier 9.59% 333/3471
User Error - PPP NCP Active to Request 0.46% 16/3471
User Request - Admin Quit 0.12% 4/3471
NAS Request - PPP Maximum Retransmissions 0.06% 2/3471
Port Error - Wrong Type 0.06% 2/3471
---------------------------------------------------------------
*** POP 1 - Aggregate

normal 62.51% 922/1475
Port Error - Unknown State 20.88% 308/1475
User Request - Call Circuit Closed 8.75% 129/1475
Lost Carrier 6.98% 103/1475
User Error - PPP NCP Active to Request 0.54% 8/1475
User Request - Admin Quit 0.20% 3/1475
Port Error - Wrong Type 0.14% 2/1475

*** POP 1 - portmaster 1

normal 54.73% 532/972
Port Error - Unknown State 31.69% 308/972
User Request - Call Circuit Closed 6.69% 65/972
Lost Carrier 5.86% 57/972
User Error - PPP NCP Active to Request 0.62% 6/972
User Request - Admin Quit 0.21% 2/972
Port Error - Wrong Type 0.21% 2/972

*** POP 1 - portmaster 2

normal 77.53% 390/503
User Request - Call Circuit Closed 12.72% 64/503
Lost Carrier 9.15% 46/503
User Error - PPP NCP Active to Request 0.40% 2/503
User Request - Admin Quit 0.20% 1/503
---------------------------------------------------------------
*** POP 2

normal 68.97% 578/838
Port Error - Unknown State 11.46% 96/838
Lost Carrier 9.31% 78/838
User Request - Call Circuit Closed 9.31% 78/838
User Error - PPP NCP Active to Request 0.60% 5/838
NAS Request - PPP Maximum Retransmissions 0.24% 2/838
User Request - Admin Quit 0.12% 1/838
---------------------------------------------------------------
*** POP 3

normal 72.16% 604/837
Lost Carrier 13.86% 116/837
User Request - Call Circuit Closed 13.74% 115/837
User Error - PPP NCP Active to Request 0.24% 2/837
---------------------------------------------------------------
*** POP 4

normal 84.74% 272/321
Lost Carrier 11.21% 36/321
User Request - Call Circuit Closed 3.74% 12/321
User Error - PPP NCP Active to Request 0.31% 1/321

---
Bryan Wann		bwann@cwis.net	
CWIS Internet Services	http://www.cwis.net 918-967-2858


Give a man a fish, he eats for a day;
Teach a man to fish, he eats for a lifetime;
Enlighten him further, and he opens a chain of seafood restaurants






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