Using the Telnet Console
The Port Utilization screen displays these statistics.
Column | Description | |
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Port | Identifies the port. | |
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TX/sec | Displays the number of packets transmitted per second. | |
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RX/sec | Displays the number of packets received per second. | |
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%Util. | Displays the calculated percentage of the bandwidth being used by the device | |
attached to the port. | ||
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To view port error statistics
1.From the Main Menu, select Network Monitoring Port Error Packets and press Enter.
2.In the Port field, enter the port number to view.
3.Toggle the Interval field to suspend or a value from 2 seconds to 1 minute. This field sets the interval at which the error statistics are updated.
4.To clear the statistics and gather new, highlight CLEAR COUNTERS and press Enter.
The screen displays these statistics.
Field |
| Description |
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Rx Frames— Received packets |
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| Alignment. For 10 Mbps ports, the counter records CRC errors (Frame |
CRC Error |
| Check Sequence (FCS) and alignment errors). For 100 Mbps ports, the |
| counter records the sum of CRC errors and code errors (frames received | |
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| |
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| with rxerror signal). |
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| Small. The total number of frames received that were shorter than 64 octets |
Undersize |
| long (excluding framing bits, but including FCS octets) and were otherwise |
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| well formed. |
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| Long. The total number of frames received that were longer than 1518 |
Oversize |
| octets (excluding framing bits, but including FCS octets) and were otherwise |
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| well formed. |
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| Small with alignment error. The total number of frames received that were |
Fragment |
| shorter than 64 octets in length (excluding framing bits, but including FCS |
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| octets) and had either an FCS or an alignment error. |
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| Long with alignment error. The total number of frames received that were |
Jabber |
| longer than 1518 octets (excluding framing bits, but including FCS octets), |
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| and had either an FCS or an alignment error. |
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Drop Pkts |
| Total dropped. The total number of events in which packets were dropped |
| due to a lack of resources. | |
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Tx Frames— Transmitted packets |
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ExDefer |
| Delayed. The number of frames for which the first transmission attempt on a |
| particular interface was delayed because the medium was busy. | |
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| Alignment. For 10 Mbps ports, the counter records CRC errors (FCS or |
CRC Error |
| alignment errors). For 100 Mbps ports, the counter records the sum of CRC |
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| errors and code errors (frames received with rxerror signal). |
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Late Coll. |
| Late Collisions. The number of times that a collision is after the allowable |
| the detection period. | |
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58 | ZT8101 User’s Guide |
