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Error analysis – EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual

Page 414

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Ethernet Tabs

400

IQS-8100 Series Transport Blazer

Error/Alarm RX

Error Analysis

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FCS: The number of received frames with an invalid FCS.

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Jabber/Giant: The number of received frames larger than 1518 (no
VLAN tag), or 1522 (1 VLAN tag) bytes with an invalid FCS.

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Oversize: The number of received frames larger than 1518 (no VLAN
tag), or 1522 (1 VLAN tag) bytes with a valid FCS. Oversize error
analysis is only available when Oversize Monitoring is enabled (see
page 399).

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Runt: The number of received frames that are smaller than 64 bytes
with an invalid FCS.

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Undersize: The number of received frames smaller than 64 bytes with
a valid FCS.

For Gb Ethernet only:

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Symbol: A Symbol Error is declared when an invalid code-group in the
code is detected.

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Idle: An Idle Error is declared when an error is detected between the
end of a frame and the beginning of the next frame.

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False Carrier: A False Carrier is declared when data is being received
with no valid start of frame.

For Ethernet and 10G Ethernet only:

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Block: The number of frames received with an errored block
condition. Not available with 10G Ethernet in GFP.

Total Error Count: Indicates the total number of errors including all the
above errors at the exception of Oversize when the Oversize Monitoring
check box is not selected.