How can I do the same on Linux (RedHat or Debian)?

I need to create local loopback as shown herein: Performing Loopback Testing for Fast Ethernet and Gigabit Ethernet Interfaces.

Excerpt

Configure a Local Loopback Action

To configure a local loopback without physically connecting the transmit port to the receive port, follow these steps:

1. In configuration mode, go to the following hierarchy level:

   [edit]

   user@host# edit interfaces interface-name (fastether-options | gigether-options)

2. Configure the local loopback:

   [edit interfaces interface-name (fastether-options | gigether-options)]

   user@host# set loopback

I need to create local loopback as shown herein: Performing Loopback Testing for Fast Ethernet and Gigabit Ethernet Interfaces.

Excerpt

Configure a Local Loopback Action

To configure a local loopback without physically connecting the transmit port to the receive port, follow these steps:

1. In configuration mode, go to the following hierarchy level:

   [edit]

   user@host# edit interfaces interface-name (fastether-options | gigether-options)

2. Configure the local loopback:

   [edit interfaces interface-name (fastether-options | gigether-options)]

   user@host# set loopback

How can I do the same on Linux (RedHat or Debian)?

I need to create local loopback as shown herein: Performing Loopback Testing for Fast Ethernet and Gigabit Ethernet Interfaces.

Excerpt

Configure a Local Loopback Action

To configure a local loopback without physically connecting the transmit port to the receive port, follow these steps:

1. In configuration mode, go to the following hierarchy level:

   [edit]

   user@host# edit interfaces interface-name (fastether-options | gigether-options)

2. Configure the local loopback:

   [edit interfaces interface-name (fastether-options | gigether-options)]

   user@host# set loopback

How can I do the same on Linux (RedHat or Debian)?

I need to create local loopback as shown herein: Performing Loopback Testing for Fast Ethernet and Gigabit Ethernet Interfaces.

Excerpt

Configure a Local Loopback Action

To configure a local loopback without physically connecting the transmit port to the receive port, follow these steps:

1. In configuration mode, go to the following hierarchy level:

   [edit]

   user@host# edit interfaces interface-name (fastether-options | gigether-options)

2. Configure the local loopback:

   [edit interfaces interface-name (fastether-options | gigether-options)]

   user@host# set loopback

How can I do the same on Linux (RedHat or Debian)?

I need to create local loopback as shown herein: http://www.juniper.net/techpubs/en_US/junos14.1/topics/topic-map/ethernet-fast-and-gigabit-loopback-testing.html#id-11863133

Configure a Local Loopback Action

To configure a local loopback without physically connecting the transmit port to the receive port, follow these steps:

1. In configuration mode, go to the following hierarchy level:

   [edit]

   user@host# edit interfaces interface-name (fastether-options | gigether-options)

2. Configure the local loopback:

   [edit interfaces interface-name (fastether-options | gigether-options)]

   user@host# set loopback

How can I do the same on Linux (RedHat or Debian)?

I need to create local loopback as shown herein: Performing Loopback Testing for Fast Ethernet and Gigabit Ethernet Interfaces.

Excerpt

Configure a Local Loopback Action

To configure a local loopback without physically connecting the transmit port to the receive port, follow these steps:

1. In configuration mode, go to the following hierarchy level:

   [edit]

   user@host# edit interfaces interface-name (fastether-options | gigether-options)

2. Configure the local loopback:

   [edit interfaces interface-name (fastether-options | gigether-options)]

   user@host# set loopback