this is incorrect. when you connect a switch to a perfectly good laptop, it will automatically show as reliability 255/255, txload 1/255, rxload 1/255. this means the connection is the issue if every other indicator is 0 as shown in the example. Bad NIC is then the best answer.
If you see zero transmit (Tx) and receive (Rx) packets on an interface over a period like 30 seconds, and you've ruled out a dribble condition (very infrequent, low-rate packets), it points to a fundamental connectivity problem. So likely the NIC.
397 packets with dribble condition detected under the interface statistics. A dribble condition typically indicates issues such as minor frame alignment errors, often linked to a bad Network Interface Card (NIC).
We don't have any errors , we don't have any large number of broadcast (broadcast storm) , we don't have collisions , the only thing that is not standard in this output is the MTU 1397 , but we are not losing any packets because of this so the only answer that remains it's C FIFO queueing .
Thanks to Copilot ( My question - ccna what indicates a bad NIC on interface outputs).
Its A
Input packets much higher than output packets, lots of dropped packets - BAD NIC
By ChatGPT:
Based on the provided output, the condition of interface that is occurring is:
C. queueing
The output shows information related to the interface's queuing strategy, including the input queue size, output queue size, and input/output rates. It also mentions that the queuing strategy is "fifo," which stands for "First In, First Out." This means that packets are processed in the order they arrive, and the interface is not experiencing any drops in the output queue (Output queue: 0/300).
The other options are not supported by the information given in the output:
A. "bad NIC" (Network Interface Card) is not mentioned or implied in the output.
B. "high throughput" is not explicitly mentioned in the output. It only shows the bandwidth (BW) of the interface, but the current throughput is reported as 0 bits/sec for both input and output.
D. "broadcast storm" is not mentioned in the output. There is a line showing "Received 267 broadcasts (0 IP multicasts)," which indicates the number of broadcast packets received, but it doesn't suggest a broadcast storm.
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