A walkthrough of configuration examples, starting with basic examples and then getting into a few more complex configurations, will help to put this into perspective. The order of the walkthrough uses the following configuration example:
|Fast Ethernet interfaces|
|Fast Ethernet with VLAN tagging|
|T1 interface with Cisco HDLC|
|Serial interface with PPP|
|Serial interface with Frame Relay|
Initially, we will use a step-by-step approach to establish the configuration fundamentals. Then the walkthrough will move toward configuration results that build on the fundamentals and become advanced. Once you grasp the fundamentals, you should be able to follow the advanced configurations. At the end of this section, we will discuss the use of the Virtual Router Redundancy Protocol (VRRP).
First, let’s build an interface on router
Lager that connects directly to router
Ale over the
Check the status of the
fe-0/0/0 interface by issuing a
show interfaces fe-0/0/0 terse command. JUNOS software interfaces are automatically “enabled” when the physical connection is wired.
show interfaces terse fe-0/0/0Interface Admin Link Proto Local Remote fe-0/0/0 up up
If an interface needs to be administratively disabled, issue the
The interface appears to be physically up, so next, configure the interface to allow IP traffic to flow as well as add an IP address. Begin by entering ...