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  2. Duplex mismatch - Wikipedia

    en.wikipedia.org/wiki/Duplex_mismatch

    Single packets are sent and acknowledged without problems. As a result, a simple ping command fails to detect a duplex mismatch because single packets and their resulting acknowledgments at 1-second intervals do not cause any problem on the network. A terminal session which sends data slowly (in very short bursts) can also communicate successfully.

  3. Routing loop - Wikipedia

    en.wikipedia.org/wiki/Routing_loop

    Furthermore, node A receives the data that it originated back from node B and consults its routing table. Node A's routing table will say that it can reach node C via node B (because it still has not been informed of the break) thus sending its data back to node B creating an infinite loop. This routing loop problem is also called a two-node loop.

  4. Assignment problem - Wikipedia

    en.wikipedia.org/wiki/Assignment_problem

    The problem can be solved by reduction to the minimum cost network flow problem. [11] Construct a flow network with the following layers: Layer 1: One source-node s. Layer 2: a node for each agent. There is an arc from s to each agent i, with cost 0 and capacity c i. Level 3: a node for each task.

  5. Circulation problem - Wikipedia

    en.wikipedia.org/wiki/Circulation_problem

    The circulation problem and its variants are a generalisation of network flow problems, with the added constraint of a lower bound on edge flows, and with flow conservation also being required for the source and sink (i.e. there are no special nodes). In variants of the problem, there are multiple commodities flowing through the network, and a ...

  6. Switching loop - Wikipedia

    en.wikipedia.org/wiki/Switching_loop

    In a very simple example, a switch with three ports A, B, and C has a normal node connected to port A while ports B and C are connected to each other in a loop. All ports have the same link speed and run in full duplex mode. Now, when a broadcast frame enters the switch through port A, this frame is forwarded to all ports but the source port, i ...

  7. Troubleshoot a broadband internet connection - AOL Help

    help.aol.com/articles/troubleshooting-a...

    Check if you can visit other sites with a different browser - If you can go to another site, the problem may be associated the browser you're using. If you don't have another browser, download a supported one for free. 2. Check the physical connection - A loose cable or cord can often be the cause of a connection problem. Make sure everything ...

  8. Exposed node problem - Wikipedia

    en.wikipedia.org/wiki/Exposed_node_problem

    In wireless networks, the exposed node problem occurs when a node is prevented from sending packets to other nodes because of co-channel interference with a neighboring transmitter. Consider an example of four nodes labeled R1, S1, S2, and R2, where the two receivers (R1, R2) are out of range of each other, yet the two transmitters (S1, S2) in ...

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