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Issues with Computer Ports Explained

Issues with Computer Ports Explained

Physical ports can stop functioning for any of several reasons. Causes of port failure include:

  • Power surges (for devices physically connected to electric mains).
  • Water damage.
  • Internal failure.
  • Damage caused by pins from cables (caused by inserting cables too forcefully, or by attempting to plug the wrong type of cable into a port).

Except for damage to pins, a physical inspection of the port hardware will not find anything obviously wrong. A failure of one port on a multiport device (such as a network router) does not affect the functioning of the other ports.

The speed and specification level of a physical port can also not be determined just by physical inspection. Some Ethernet devices, for example, operate at a maximum of 100 Mbps, while others support Gigabit Ethernet, but the physical connector is the same in both cases. Similarly, some USB connectors support version 3.0 while others only support 2.x or sometimes even 1.x.

The most common challenge a person faces with virtual ports is network security. Internet attackers regularly probe the ports of websites, routers, and any other network gateways. A network firewall greatly helps to guard against these attacks by limiting access to ports based on their number. To be most effective, a firewall tends to be overprotective and will sometimes block traffic that a person wanted to allow. Methods for configuring the rules that firewalls use to process traffic such as port forwarding rules can be very difficult for nonprofessionals to manage.
Issues with Computer Ports Explained Issues with Computer Ports Explained Reviewed by Technowap on November 10, 2018 Rating: 5

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