Type N (NPSI) Entry

Type N entries for X.25 NPSI records are described in the following table. These entries contain 106 bytes and supply information about X.25 multi-channel (MCH) lines, X.25 MCH PUs, X.25 virtual circuits, XI lines, and XI PUs.

Length

Offset

Type

Description

8

0

C

Element name

4

8

N

NCP collection interval in tenths of seconds

1

12

N

Element type:
X'49' - X.25 MCH line, XI line
X'29' - X.25 MCH PU or X.25 VC, XI PU

4

13

N

Total number of messages sent:
I-frames for X.25 MCH lines, XI lines, and XI Pus
Packets for X.25 MCH PUs and X.25 VCs

4

17

N

Total number of messages received:
I-frames for X.25 MCH lines, XI lines, and XI PUs
Packets for X.25 MCH PUs and X.25 VCs

4

21

N

Total number of bytes sent for X.25 MCH lines, X.25 VCs, XI lines, and XI PUs

4

25

N

Total number of bytes received for X.25 MCH lines, X.25 VCs, XI lines, and XI PUs

2

29

N

Outbound queue length for X.25 MCH lines, XI lines, and XI PUs

4

31

N

Total number of RNR frames sent for X.25 MCH lines, X.25 MCH PUs, XI lines, and XI PUs

4

35

N

Total number of RNR frames received for X.25 MCH lines, X.25 MCH PUs, XI lines, and XI PUs

2

39

N

Total errors for XI lines and XI PUs

4

41

N

Number of I-frames retransmitted for MCH lines, XI lines, and XI PUs

4

45

N

Number of bytes retransmitted for MCH lines, XI lines, and XI PUs

4

49

N

Line send speed

4

53

N

Line receive speed

2

57

N

Network address

2

59

N

Element count

10

61

N

NCP element data (see NCP line entry)

1

71

N

Resource subtype:
X'20' - Dial-up line
X'04' - X.25 extended resource

1

72

N

Resource extended subtype for X.25 extended resources:
X'80' - X.25 MCH line
X'40' - X.25 MCH PU
X'20' - X.25 VC
X'10' - X.25 LU
X'08' - X.25 XI
X'04' - X.25 ODLC

1

73

N

NCP record identifier:
X'04' - X.25 resource

8

74

N

VTAM switched definition PU name if available

X.25 MCH lines, XI lines, and XI PUs only:

4

82

N

Total number of RR frames sent

4

86

N

Total number of RR frames received

16

90

N

Reserved

X.25 MCH PUs only:

2

82

N

Current number of VCs established

2

84

N

Number of new VCs established this interval

4

86

N

Total number of outbound connections (calls)

4

90

N

Total number of inbound connections (calls)

4

94

N

Total number of outbound disconnections (clears)

4

98

N

Total number of inbound disconnections (clears)

4

102

N

Total number of INN-SHM connections

X.25 VCs only:

4

82

N

Total number of D-bit packets sent

4

86

N

Total number of D-bit packets received

4

90

N

Total number of M-bit packets sent

4

94

N

Total number of M-bit packets received

8

98

N

Reserved


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