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Line statistics hsc – Visara LINCS Central Control User Manual

Page 110

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104

LINCS Central Control

707024-002

Line Errors

Count of errors that may occur. Some example errors are:

• a frame is repeated
• the Error Detected Indicator (EDI) in the incoming frame is zero
• or a Frame Check Sequence (FCS) error exists

Burst Errors

Count of the times the adapter detects the absence of transitions on the line for a selected
period of time.

ARI/FCI Errors

Address Recognized Indicator/Frame Copied Indicator. Count of the times the adapter received
a frame it had previously transmitted but the ARI or FCI is zero, indicating frame not recognized
or copied by the destination.

Lost Frame Errors

Count of the times an adapter fails to receive the end of frame it previously transmitted.

Receive Congestion Errors

Count of the times an adapter recognizes a frame with its address but insufficient buffer space
prevents reception of the frame.

Frame Copied Errors

Count of the times an adapter recognizes a frame with its address but the ARI bit has already
been turned on. This may indicate a duplicate ring address.

Token Errors

Counter in the Active Monitor station. Incremented only when:

• A priority token has the Monitor Count bit set to one. Indicates the token is not being received.
• A frame has the Monitor Count bit equal to one. Indicates the token is not being received.
• No token or frame is received within a 10-ms window. Code violation exists in the

Starting Delimiter/token sequence.

DMA Bus Errors

Occurrences of DMA bus errors.

DMA Parity Errors

Occurrences of DMA parity errors.

Line Statistics HSC

Line Statistics

LINCS C8.2 Central Control

Line: HSC1.0

Slot: 07

Successful Receptions

493

Invalid Length Frames Received

0

Frame Alignment Errors

0

Aborts Received

0

Frame Check Sequence Errors

0

Discarded Frames

0

Receive Overruns

0

Successful Transmissions

5404

Transmit Underruns

0

CTS Lost During Transmission

0

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