How to Rack, Configure, and Attach Devices to a Juniper EX Series Switch - dummies

How to Rack, Configure, and Attach Devices to a Juniper EX Series Switch

By Walter J. Goralski, Cathy Gadecki, Michael Bushong

Before you can configure the EX switch for VLANs and other features, you have to rack the switch, configure it, and attach other devices to it. Juniper switches ship in individual shipping crates. All EX switches except the EX 8200 devices come in cardboard boxes. The EX 8200 models are much larger. To install these switches, you’ll need mechanical moving and lifting equipment and a team of three people.

Rack the switch

You can install EX series switches in a rack or cabinet, or even on a desk or table if you have the smaller models. If you’re mounting the switches in a rack or cabinet, screw the mounting brackets onto the sides of the switch and then install the switch in the rack or cabinet.

If you plan to set the switch on a desk or table, insert the rubber feet into the holes in the bottom of the switch to keep the chassis from sliding on the desk and aid airflow around the device.

You can install the larger EX 8200 only in a rack or cabinet. Attach the mounting brackets and use a mechanical lift to move the switch into the proper position.

The smaller EX series switches don’t have on/off switches. When you plug them in, they start booting. If you need to power down the switch, you have to halt the software and then unplug it. The larger EX 8200 switch has an on/off switch.

Configure the Juniper EX switch initially

One easy way to initially configure the switch is to use the J-web GUI interface. After the switch powers up, press the Menu button next to the LCD panel on the front of the box and navigate to the Maintenance Menu.

Press Enter and then press the Menu button again until you see Enter EZ Setup. At this point, use an Ethernet cable to connect a PC to port 0 (which is called ge-0/0/0, the first Gigabit Ethernet interface) on the front panel of the switch:

  1. From the laptop browser, go to the address

  2. Log in as the user root with no password.

  3. On the Basic Settings page, set the name of the switch (the hostname), the root password, and the date and time.

  4. On the Management Options page, use either the default VLAN (called default) or create a new VLAN.

  5. On the Manage Access page, you can enable Telnet, SSH, and SNMP services on the switch.

  6. Click Finish to activate the initial configuration on the switch.

Plug devices into the Juniper EX switch

The ports for plugging network devices into the switch are on the front of the switch. On the models with copper ports, all the ports are 10/100/1000BASE-T ports, so you use the appropriate Ethernet cables to connect laptops, VoIP phones, wireless access points (WAPs), security cameras, and other network devices to the switch.

If you used the default VLAN when you initially configured the switch, all the devices you connect to the switch are placed into this VLAN and can begin transmitting traffic on the network without further configuration of the switch. If you configured a different VLAN, you’ll have to configure the switch to add the appropriate ports to that VLAN.