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EXFO FTB/IQS-85100G Packet Blazer for FTB-500/IQS-600 User Manual

Page 184

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Test Results

174

FTB/IQS-85100G

Alarms/Errors

Errors

Symbol

1

RX/TX: Invalid code-group is detected/generated in the code.

Idle

1

RX: An error is detected between the end of a frame and the beginning
of the next frame.

False Carrier

1

RX: Data is being received with invalid start of frame.

FCS (Frame Check Sequence)

RX: Frames with an invalid FCS are received.

Jabber

RX: Frames larger than 1518 bytes

2

with an invalid FCS are received.

Oversize (available when the Oversize Monitoring check box is
selected.)

RX: Frames larger than 1518

2

bytes with a valid FCS.

Runt

RX: Frames smaller than 64 bytes with an invalid FCS.

Undersize

RX: Frames smaller than 64 bytes with a valid FCS.

Oversize Monitoring check box, when selected (cleared by default),
allows monitoring the Oversize frame errors.

1. Available with EoOTN 1GbE client.
2. 1518 bytes for no VLAN tag, 1522 for one VLAN tag, 1526 for two VLAN tags, or 1530 for 3 VLAN tags.