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Home/ Questions/Q 3207
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Vipin Chauhan
Vipin ChauhanLevel 30
Asked: September 16, 20212021-09-16T13:48:30+05:30 2021-09-16T13:48:30+05:30

Under What Circumstance Might You Use An Ethernet Loopback Plug?

Under What Circumstance Might You Use An Ethernet Loopback Plug?
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    1. Maryam Khalid Bronze
      2021-10-20T09:01:23+05:30Added an answer on October 20, 2021 at 9:01 am

      Loopback plug

      In this world where we are connected with the help of the internet a lot of problems happen and we need to troubleshoot the problems logically but in the fault of the device by physically the network loopback is required. A question arises in the mind: Under What circumstances the Ethernet loopback cable is used? How many types of Cable?

      The loopback cable is also called a loopback plug or adapter it is a plug for the identification of the fault in the devices physically. It helps the developer to identify the transmission and receiver abilities of the network devices. It is an easy and convenient method of testing. Regarding its use, it is necessary to find out the structure of the loopback cable, its types, and how to make the ethernet loopback cable?

      What does the loopback plug mean?

      The loopback cable is for testing the ports i.e., USB, network adapter ports, etc., for the identification of the issue in the network.it is used to determine the quick and small issues in the network and have the equipment for it.it is also cheap.

      It is mostly needed in the labs for troubleshooting the problems in the network which affect the abilities of the devices on a larger scale as well. For the parallel and the series port, it is very effective and useful. The structure is simple it consists of the paired wires and it is alike the Ethernet cable and connected to the same plug.it transmits and receives traffic to and from the port.

      Types of the loopback plug

      Loopback cable consist of two types which are in the following:

      RJ-45 loopback plug:

      The RJ-45 cable has two forms RJ-45 Ethernet and Gigabit loopback and they are the simple form of the cables because it is used without any thorough knowledge of the cable feature .it is design in a way that it can be carried anywhere. For the connection with the port just plug the cable into the port and the green light indicate that the network ports are working correctly. The RJ-45 reduces the use of carrying the heavy hub.

      Fiber loopback plug:

      The fiber loopback cable consists of two wires each for the input and output. The type is classified with the type of the connector. For the multiple connections, this type of loopback cable is effective, it also has two forms which are single and multimode fiber loopback plugs. The type of the connector for fiber plug are SC, FC, MTRJ, etc.,

      How to make the ethernet loopback plug?

      The equipment for the cable is a crimping tool, Cat6 or 5 cables, RJ-45 connector, and cutter. The steps to form the Ethernet loopback cable are in the following:

      • Remove the Cat6 or 5 and cut the pair of the wire from the 4 pairs of approx. 2 inches.
      • Connect pin 1 to 3 and pin 2 to pin 6.
      • With the help of the crimping tool crimp the wire with RJ-45.
      • Once the ethernet tool form then verifies the port of the Ethernet.
      • Display the command of the interface for the ethernet status.
      • Insert the RJ-45 into the interface for validation.
      • The command shows the result “Interface is up and the line protocol is down: which determines the Ethernet port verification.

      Q: Under what circumstance might you use an Ethernet loopback plug?

      ANS: The ethernet loopback plug is used to test the network cable so that they do not affect the working and the establishment of the network done properly.

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