CCNA About Cabling:-

-: Ethernet Cabling:-

Ethernet Cabling is an important discussion especially if you are planning on taking the CISCO exams.

Three types of Ethernet Cables are available:-

   -      Straight – Through Cable

   -      Crossover Cable

   -      Rolled Cable

We will look at each in the following sections:-

-: Straight Through:-

The Straight – Through cable is used to connect

   -            Host to Switch or Hub

   -            Router to Switch or Hub

Hub/Switch                                                                                    Host

      1     ------------------------------------------------------------------------  1

      2     ------------------------------------------------------------------------  2

      3     ------------------------------------------------------------------------  3

      6     ------------------------------------------------------------------------  6

-: Cross Over Cable:-

The Crossover Cable can be used to connect:-

   -            Switch to Switch

   -            Hub to Hub

   -            Hub to Switch

   -            Router direct to Host

Hub/Switch                                                                               Hub/Switch

      1   --------------------------------------------------------------------------  3

      2   --------------------------------------------------------------------------  6

      3   --------------------------------------------------------------------------  1

      6   --------------------------------------------------------------------------  2

-: Rolled Cable:-

Although Rolled Cable isn’t used to connect any Ethernet connections together, you can use a Rolled Ethernet Cable to connect a host to a Router console serial communication (com) port.

Host                                                                                 Router/Switch

  1      ---------------------------------------------------------------------    8

  2      ---------------------------------------------------------------------    7

  3      ---------------------------------------------------------------------    6

  4      ---------------------------------------------------------------------    5

  5      ---------------------------------------------------------------------    4

  6      ---------------------------------------------------------------------    3

  7      ---------------------------------------------------------------------    2

  8      ---------------------------------------------------------------------    1