3Com 3C16685 User Manual - page 63

Commands

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of these packets and examine the transceiver or adapter card at 

the device. Some protocols may generate these packets.

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Fragments

 — The total number of packets received that were 

not an integral number of octets in length or that had a bad 

Frame Check Sequence (FCS), and were less than 64 octets in 

length (excluding framing bits but including FCS octets).

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Jabbers

 — The total number of packets received on this 

segment that were longer than 8,000 octets (excluding framing 

bits, but including FCS octets). Jabber is the uncontrolled 

transmission of oversized packets to the network by a faulty 

device.

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Collisions

 — An estimate of the total number of collisions 

that occurred when transmitting on the segment.

Displaying Ethernet Segment Summary Information

You can use the 

summary

 command to display summary 

information about a single Ethernet segment or all segments on a 

Hub since last reset. From the Top-level menu enter:

ethernet segment summary

The command line interface shows a screen of information similar to 

the following:

The statistics that are displayed are accumulated over the time 

interval since the last reset, initialization or power-off/on cycle. The 

Errors (Total)

 statistic is the sum of the following errors: 

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FCS Alignment Errors

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Undersized Packets

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Oversized Packets

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Fragments

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Jabbers