IBM 3708 Description page 253

Receive Data Threshold:
Valid options for this field range from 00000 - 65535.
This field defines the number of messages received by the 3708 until a NMVT 25
vector is sent to the host.
Receive Error Threshold:
Valid options for this field range from 00000 - 65535.
This field defines the number of receive errors that can be detected by the 3708
before an NMVT 25 vector is sent to the host. The following conditions may be
considered receive errors:
• Parity errors
• Framing errors
• Invalid link error log entry (Alert A047)
• Hardware overrun (Alert A057)
• Data Set Ready dropped (Alert A060)
• Clear To Send not active (Alert A062)
• Lost Carrier Detect (Alert A063)
• Receive line at space for more than two seconds (Alert A097)
• Autobaud/Parity Error (Alert A098)
• Inactivity timeout (Alert A101)
• Receive queue overrun (Alert AI02)
• Port Password Retry limit exceeded (Alert AI05)
• Control Terminal Password Retry limit exceeded (Alert A106).
Control Terminal Diagnostic Facilities
The customer can use the control terminal facilities for error detection and analysis.
The tools provided are:
• Start-up options. The 3708 can be configured to STOP ON ERROR for certain
unrecoverable errors. When this facility is used, special error information is
saved in the EEIF area of EEPROM. This data would be used by IBM service
personnel to determine the cause of the error.
• Error log display
• Alert log display
• Port data monitor. This option allows the customer to view data that is being
sent and received through one 3708.
• RTM display
• Storage display
• Port status summary.
For detailed descriptions of the use of these facilities, refer to IBM 3708 Network
Conversion Unit Problem Determination.
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IBM 3708 Description