Juniper EX9253 Hardware Manual page 114

baseboard for BIOS storage. You can insert the USB storage device into the USB slot on the front panel.
The switch also has two built-in M.2-based solid-state drives (SSDs) (labeled SSD0 and SSD1). There are
three copies of the software: one each on the SSD drives and one on a USB flash drive that can be
inserted into the slot in the faceplate of the Routing Engine.
When the switch boots, it first attempts to start the image on the USB flash drive. If there is no USB
flash drive installed or if the attempt otherwise fails, the switch next attempts to start the software from
the SSD drive installed in slot SSD0, and finally from the SSD drive installed in slot SSD1.
You configure the switch by issuing Junos OS command-line interface (CLI) commands, either on a
console device attached to the console (CON) port on the front panel, or over a telnet connection to a
network connected to the Ethernet management (MGMT) port on the front panel.
This procedure connects the switch to the network, but does not enable it to forward traffic. For
complete information about enabling the switch to forward traffic, including examples, see the Junos OS
configuration guides.
To perform initial configuration:
1. Log in as the root user. There is no password.
2. Start the CLI.
root# cli
root@>
3. Enter the configuration mode.
cli> configure
[edit]
root@#
4. Configure the name of the switch. If the name includes spaces, enclose the name in double
quotation marks (" ").
[edit]
root@# set system host-name
5. Configure the switch's domain name.
[edit]
root@# set system domain-name
host-name
domain-name
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