Step 2: Set Clocking to Internal

Purpose

You set clocking to internal because there is no external clock source in a loopback connection.

Action

To configure clocking to internal, follow these steps:

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

[edit]

user@host# edit interfaces interface-name

2. Configure the clocking to internal:

[edit interfaces interface-name]

user@host# set clocking internal

3. Verify the configuration:

user@host# show

For example:

[edit interfaces t1-1/3/0]

user@host# show

clocking internal;

4. Commit the change:

user@host# commit 

For example:

[edit interfaces t1-1/3/0]

user@host# commit 

commit complete

What It Means

This command saves the clocking change to the configuration database, activates the configuration on the router, and exits configuration mode.