Accessing Hub Features
Interpreting Device Status
| Figure |
| The counters are described in the following table. |
| Table |
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|
Counter | Description |
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Total Packets | Total number of packets (including bad packets, broadcast packets, and multicast |
| packets) received. |
Total Octets | Total number of octets of data (including bad packets) received on the network. |
| This object can be used to estimate Ethernet utilization. |
Broadcast Packets | Messages sent to all users on the network. |
Multicast Packets | Multicast packets are delivered to a subset of users on the network, as opposed |
| to Broadcast packets, which are sent to all users. |
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|
Collisions | When two or more devices attempt to transmit a message on a cable at the same |
| time, interfering with one another's transmissions. The number of collisions |
| should be proportional to the number of packets transmitted over time and the |
| number of nodes operating on the network. |
CRC/Alignment Errors | The Cyclic Redundancy Check (CRC) is a code typically placed at the end of the |
| frame or packet to ensure the integrity of the data within the frame. |
| Alignment Errors are the number of instances where the CRC method was used |
| to correct a packet whose bits were misaligned because of timing errors. |
Fragments | Total number of packets received that were less than 64 octets in length and had |
| a bad Frame Check Sequence (FCS). |
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