IBM 3708 Description page 252

Network conversion unit
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Table 8-2 (Page 2 of 2). NMVT (0025) Record Format
Byte
Description
56
X' 02' count of names in vector (link and station)
57
X' 09' length of this field and the next field
58-65
Downstream line name in LP record (in EBCDIC)
This name is equal to the Device Line Name configured
in the 3708 by the control terminal operator.
66-69
X' D3C9D5C5' link type (' LINE' in EBCDIC)
70
X' 09' length of this field and the next field
71-78
Downstream display in the display record (in EBCDIC)
This name is equal to the Device Name configured
in the 3708 by the control terminal operator.
79-82
X' C4C5E540' terminal type (' DEV' in EBCDIC)
83
Length of counter subvector X '9A'
(p
+
I)
84
X '9A' counter subvector ID
85
X'OI' link type is start/stop
86-88
Validity mask (if set to b'l', the corresponding counter in bytes 89-98
is valid):
Bit 0
Transmit data counter
Bit 1
Poll counter
Bit 2
Transmit error counter
Bit 3
Receive data counter
Bit 4
Receive data counter
Bit 5-23
Reserved
89-90
Transmit data counter
91-92
Poll counter
93-94
Transmit error data counter
95-96
Receive data counter
97-98
Receive error data counter
Transmit Data Threshold:
This field defines the number of messages transmitted by
the 3708 until a NMVT 25 vector is sent to the host.
Transmit Error Threshold:
Valid options for this field range from 00000 - 65535.
This field defines the number of transmit errors that can be detected by the 3708
until a NMVT 25 vector is sent to the host. The following conditions may be
considered transmit errors:
• Invalid link error log entry (Alert A047)
• Data Set Ready dropped (Alert A060)
• Clear To Send not active (Alert A062)
• Lost Carrier Detect (Alert A063)
• Autobaud/Parity Error (Alert A098)
• Device initially in transmit mode (Alert AlOO)
• SIS Write Timeout (Alert AI08).
Chapter 8. Network Management and Problem Determination
8-15

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