Juniper NFX150, Руководство по оборудованию

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Configuring the LTE Expansion Module
The LTE expansion module can be configured in three modes:
•
Always-on—The LTE expansion module connects to the 3G/4G network after booting.
The connection is always maintained, as long as there are no network or connectivity
problems.
NOTE: The default mode for LTE expansion module is always-on. For the
LTE expansion module to be operational, you only need to install one SIM
card on the LTE expansion module before powering on the device. There
is no additional configuration required.
•
Dial-on-demand—The LTE expansion module initiates a connection when it receives
interesting traffic. You define interesting traffic using the dialer filter. To configure
dial-on-demand using a dialer filter, you first configure the dialer filter and then apply
the filter to the dialer interface.
•
Backup—The LTE expansion module connects to the 3G/4G network when the primary
connection fails.
You can configure the LTE expansion module either as a primary interface or as a backup
interface. When configured as the primary interface, the LTE expansion module supports
both the always-on and dial-on-demand modes. When configured as the backup interface,
the LTE expansion module connects to the network only when the primary interface fails.
Profile configuration is not needed in most scenarios, as LTE has a built-in database of
many service providers and can automatically select the profile to use. Occasionally, you
might need to specify profiles explicitly in the configuration, in which case, the automatic
profile selection is disabled.
Before you begin the configuration, insert the Subscriber Identity Module (SIM) in the
LTE expansion module. The SIM uses a profile to establish a connection with the network.
You can configure up to 16 profiles for each SIM card. The LTE expansion module supports
two SIM cards and so you can configure a total of 32 profiles, although only one profile
can be active at a time. To configure the SIM profile, you will require the following
information from the service provider:
• Username and password
• Access Point Name (APN)
•
Authentication (Challenge Handshake Authentication Protocol (CHAP) or Password
Authentication Protocol (PAP))
Configuring the LTE Expansion Module for Primary Mode
Before you begin the procedure, ensure that the logical interface (dl0.0) is not configured
as a backup. If dl0.0 is configured as a backup option for any interface on the device,
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Chapter 3: Initial Installation and Configuration