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Displaying Port Statistics
Port Statistics display key statistics from the
Select the required stack unit, and port or module. The statistics displayed are indicated in the following figure and table.
Vertical Horizon Local Management
Port Statistics : Unit 1 Port 1 |
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EtherLike Counter: |
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Alignment Errors | :0 | Late Collisions | :0 |
FCS Errors | :0 | Excessive Collisions | :0 |
Single Collision Frames | :0 | Internal MAC Transmit Errors:0 | |
Multiple Collision Frames:0 | Carrier Sense Errors | :0 | |
SQE Test Errors | :0 | Frames Too Long | :0 |
Deffered Transmissions | :0 | Internal MAC Receive Errors :0 | |
[Refresh Statistics] |
| Show port : 1 |
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[Reset Counters] |
| [Show] |
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<OK> <PREV UNIT> <NEXT UNIT> <PREV PORT> <NEXT PORT>
Use <TAB> or arrow keys to move. <Enter> to select.
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| Parameter | Description |
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| Alignment Errors | For 10 Mbps ports, this counter records alignment errors (mis- |
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| synchronized data packets). For 100 Mbps ports, this counter | |
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| records the sum of alignment errors and code errors (frames | |
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| received with rxerror signal). | |
| FCS Errors | The number of frames received that are an integral number of | |
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| octets in length but do not pass the FCS check. | |
| Single Collision | The number of successfully transmitted frames for which | |
| Frames* | transmission is inhibited by exactly one collision. | |
| Multiple Collision | A count of successfully transmitted frames for which transmission | |
| Frames* | is inhibited by more that one collision. | |
| SQE Test Errors* | A count of times that the SQE TEST ERROR message is | |
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| generated by the PLS sublayer. | |
| Deferred | A count of frames for which the first transmission attempt on a | |
| Transmissions* | particular interface is delayed because the medium was busy. | |
| Late Collisions | The number of times that a collision is detected later than 512 bit- | |
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| times into the transmission of a packet. | |
| Excessive Collisions* | The number of frames for which transmission failed due to | |
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| excessive collisions. | |
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