Monitoring Port Statistics

You can monitor statistics of individual ports or all ports simultaneously using the Statistics Menu. The table, “Port Statistics Counters” lists the available counters that can be monitored.

Port Statistic Counters

 

Counter Type

Displayed

 

 

 

 

 

 

READABLE FRAMES

The total number of frames received on the hub port.

 

 

 

 

 

 

READABLE OCTETS

The total number of octets of data received on

 

 

 

the hub port.

 

 

FCS ERRORS

The total number of packets received by the port

 

 

 

that had bad Frame Check Sequence.

 

 

ALIGN ERRORS

The total number of packets received that have bad

 

 

 

FCS with a non-integral number of octets.

 

 

FRM TOO LONG

The total number of packets received that were

 

 

 

longer than 1518 octets (including FCS octets

 

 

 

but excluding framing bits) and were otherwise well

 

 

 

formed.

 

 

SHORT EVENTS

The total number of packets received that were

 

 

 

less than 64 octets (including FCS octets but

 

 

 

excluding framing bits) and were otherwise well

 

 

 

formed.

 

 

RUNTS

The total number of packets received that were less

 

 

 

than 64 octets due to collisions or activity duration

 

 

 

was greater than the ShortEventMaxTime event and

 

 

 

less than the ValidPacketMinTime event.

 

 

 

 

 

 

COLLISIONS

Total collisions.

 

 

 

 

 

 

LATE EVENTS

Total events received by the port where the activity

 

 

 

duration is greater than the LateEventThreshold.

 

 

VERY LONG EVENTS

Total events received by the port where the activity

 

 

 

duration is greater than the MAU Jabber Lockup

 

 

 

Protection timer TW3.

 

 

RATE MISMATCH

Total frames received by the port with no collisions

 

 

 

and the activity duration greater than the

 

 

 

ValidPacketMinTime event and also frequency (data

 

 

 

rate) is mismatched from the local frames mismatch

 

 

 

frequency.

 

 

 

 

 

 

 

 

 

44 10/100 Managed Hub

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Black Box LH8112A-S, LH8124A manual Monitoring Port Statistics, 44 10/100 Managed Hub

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