On Mon, 27 Apr 1992 09:40:27 EST Nick Laflamme <[log in to unmask]>
said:
 
>I'd love to see some sort of automated survey about how often BITNET
>links go down.
 
Here  are  the  latest  EARN  statistics. Note  that  they  measure  real
availability, not the ratio of how often  the BITNET link was up when the
Internet  link  also was.  International  lines  suffer from  many  small
outages (from  a few  seconds to  a few  minutes), which  in the  case of
BITNET usually  means the link goes  down and stays down  until automatic
retries bring  it up, usually about  5 minutes later. Note  also that the
SEARN figures  are particularly  bad due to  major hardware  and software
upgrades which kept the machine unavailable  for a couple dozen hours. As
you  will see,  availability depends  very much  on the  site. Egypt  for
instance has  awful results due to  being shut down outside  office hours
and during any religious holiday.
 
  Eric
 
EARN Monitor Link Down-Time Report.
 
Data Collection period  : MONTH MARCH 1992
Data Collection node(s) : ALL
 
Link Status is Down = '*'
Link Status Unknown = '.'
 
Links                     2%  10%  20%  30%  40%  50%  60%  70%  80%  90%  100%
                          |   |    |    |    |    |    |    |    |    |    |
EGFRCUVX FRMOP22   (71.30)***********************************
DKEARN   SUEARN2   (47.04)***********************..
FRMOP53  TNEARN    (32.20)****************
HEARN    LUXCEP11  (21.95)**********
DEARN    FRMOP22   (17.30)********
FRMOP22  GBGBOX    (15.10)*******
DEARN    GBGBOX    (14.65)*******
FRMOP22  TREARN    (11.90)*****
ICNUCEVM ITGBOX    (11.24)*****
DEARN    ICNUCEVM  (11.22)*****
CEARN    DEARN     (10.77)*****
ICNUCEVM SEARN      (9.43)****
AEARN    YUBGSS21   (8.78)****
DEARN    HEARN      (8.44)****
ICNUCEVM UICVM      (8.37)****.
AEARN    DEARN      (8.35)****
DEARN    YALEVM     (8.26)****..
CYEARN   GREARN     (7.60)***
FRMOP11  ICNUCEVM   (7.30)***
AEARN    ICNUCEVM   (7.19)***
HEARN    ICNUCEVM   (7.16)***
UKACRL   VTBIT      (6.92)***
HEARN    IRLEARN    (6.89)***
DEARN    TAUNIVM    (6.63)***
FRMOP22  GREARN     (6.60)***
RICEVM1  TAUNIVM    (6.54)***.
AEARN    HUEARN     (6.54)***
CEARN    ICNUCEVM   (6.49)***
DKEARN   PLEARN     (5.73)**..
GBGBOX   ITGBOX     (5.53)**
CORNELLC SEARN      (5.53)**.
FIGBOX   SEARN      (5.37)**
ICNUCEVM TAUNIVM    (5.35)**
EB0UB011 PTEARN     (5.20)**
DKEARN   SEARN      (5.17)**
EBCESCA1 FRMOP11    (4.90)**
EBCESCA1 EB0UB011   (4.90)**
AEARN    UGA        (4.83)**
HEARN    SEARN      (4.72)**
FRMOP11  HEARN      (4.60)**
CEARN    PUNFSV2    (4.43)**
NOBERGEN SEARN      (4.36)**
FRMOP22  FRMOP53    (4.30)**
AEARN    CEARN      (4.30)**
CEARN    SEARN      (4.21)**
HEARN    TAUNIVM    (4.00)**
CEARN    FRMOP11    (4.00)**
AEARN    FRMOP11    (3.60)*
FRMOP11  TAUNIVM    (3.40)*
AEARN    CSEARN     (3.27)*
IEGBOX   IRLEARN    (3.18)*....
BEARN    FRMOP22    (3.10)*
AEARN    TAUNIVM    (2.82)*
HEARN    UIUCVMD    (2.62)*
FRMOP11  FRMOP22    (2.40)*
CEARN    TAUNIVM    (2.21)*
AEARN    UKACRL     (1.38)
HEARN    UKACRL     (1.32)
AEARN    HEARN      (1.29)
FRMOP11  MITVMA2    (0.82)
GBGBOX   UKACRL     (0.76)
CEARN    HEARN      (0.71)
FRMOP11  MITVMA     (0.64).
AEARN    ATGBOX     (0.38)