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    The J-Web Interface for the QFX Series Overview

    The Juniper Networks QFX3500 and QFX3600 standalone switches ship with two pre-installed interfaces—the Juniper Networks Junos OS command-line interface (CLI), and the J-Web interface. You can use either interface to monitor, configure, troubleshoot, and manage the switches. This topic describes the J-Web interface. You can navigate the J-Web interface, scroll pages, and expand and collapse elements as you do in a typical Web-based application.

    To access the J-Web interface for the switch, your management device requires the following software:

    • Supported browsers—Microsoft Internet Explorer version 7.0 and Mozilla Firefox version 3.0

      Note: Other browser versions might not work on the switch. The browser and the network must support receiving and processing HTTP 1.1 gzip compressed data.

    • Language support—English-version browsers
    • Supported OS—Microsoft Windows XP Service Pack 3

    Each J-Web interface page is divided into panes.

    • Top pane—Displays system identity information and links.
    • Main pane—Location where you monitor, configure, diagnose (troubleshoot), and manage (maintain) the switch by entering information in text boxes, making selections, and clicking buttons.
    • Side pane—Displays additional options of the Monitor, Configure, Troubleshoot, or Maintain task currently displayed in the main pane. Click an option to access it in the main pane.

    The layout of the panes allows you to quickly navigate through the J-Web interface. Table 1 summarizes the elements of the J-Web interface.

    The J-Web interface provides CLI tools that allow you to perform all of the tasks that you can perform from the Junos OS CLI, including a CLI Viewer to view the current configuration, a CLI Editor for viewing and modifying the configuration, and a Point & Click CLI editor that allows you to click through all of the available CLI statements.

    Table 1: The J-Web Interface Elements

    J-Web Interface Element


    Main Pane
    Top Pane


    Hostname of the switch.

    Logged in as: username

    Username you used to log on to the switch.

    Commit Options

    Set of options using which you can configure committing multiple changes with a single commit operation.

    • Commit—Commits the candidate configuration of the current user session, along with changes from other user sessions.
    • Compare—Displays the XML log of pending configurations on the device.
    • Discard—Discards the candidate configuration of the current user session, along with changes from other user sessions.
    • Preference—Indicates your choice of committing all configuration changes together, or committing each configuration change immediately. The two commit options are:

      • Commit changes immediately—Sets the system to force an immediate commit operation on every page after every configuration change.
      • Validate changes until explicit commit—Loads all configuration changes for an accumulated single commit operation. If there are errors in loading the configuration, the errors are logged. This is the default mode.

      Note: There are some pages on which configuration changes must be committed immediately. For such pages, if you configure the commit options for a single commit operation, the system displays warning notifications that remind you to commit your changes immediately. An example for such a page is Switching.


    Displays links to information on help and the J-Web interface.

    • Help Contents—View context-sensitive help topics.
    • About—Displays information about the J-Web interface, such as the version number.


    Ends your current login session with the switch and displays the login page.


    Menu of main options in the J-Web interface. Click the tab to access an option.

    • Dashboard—Displays a high-level, graphical view of the chassis and status of the switch. It displays system health information, alarms, and system status.
    • Configure—Configure the switch, and view configuration history.
    • Monitor—View information about configuration and hardware on the switch.
    • Maintain—Manage files and licenses, upgrade software, and reboot the switch.
    • Troubleshoot—Run diagnostic tools to troubleshoot network issues.

    Help (?) icon

    Displays useful information—such as the definition, format, and valid range of an option—when you move the cursor over the question mark.

    Red asterisk (*)

    Indicates a required field.

    Task Pane

    Configuration hierarchy

    (Applies to the Junos OS CLI configuration editor only) Displays the hierarchy of committed statements in the switch configuration.

    • Click Expand all to display the entire hierarchy.
    • Click Hide all to display only the statements at the top level.
    • Click plus signs (+) to expand individual items.
    • Click minus signs (-) to hide individual items.

    Published: 2014-03-20