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Configuring Redundant Trunk Groups on EX Series Switches (J-Web Procedure)

Note:

This topic applies only to the J-Web Application package.

A redundant trunk link provides a simple solution for network recovery when a trunk interface goes down. Traffic is routed to another trunk interface, keeping network convergence time to a minimum. You can configure redundant trunk groups (RTGs) with a primary link and a secondary link on trunk interfaces, or configure dynamic selection of the active interface. If the primary link fails, the secondary link automatically takes over without waiting for normal Spanning Tree Protocol (STP) convergence. An RTG can be created only if the following conditions are satisfied:

  • A minimum of two trunk interfaces that are not part of any RTG are available.

  • All the selected trunk interfaces to be added to the RTG have the same VLAN configuration.

  • The selected trunk interfaces are not part of a spanning-tree configuration.

To configure an RTG by using the J-Web interface:

  1. Select Configure > Switching > RTG.

    The RTG Configuration page displays a list of existing RTGs. If you select a specific RTG, the details of the selected RTG are displayed in the Details of group section.

    Note:

    After you make changes to the configuration on this page, you must commit the changes for them to take effect. To commit all changes to the active configuration, select Commit Options > Commit. See Using the Commit Options to Commit Configuration Changes for details about all commit options.

  2. Click one of the following options:
    • Add—Creates an RTG.

    • Edit—Modifies an RTG.

    • Delete—Deletes an RTG.

    When you are adding or editing an RTG, enter information as described in Table 1.

  3. Click OK to apply changes to the configuration or click Cancel to cancel without saving changes.
Table 1: RTG Configuration Fields

Field

Function

Your Action

Group Name

Specifies a unique name for the RTG.

Enter a name.

Note:

Only on EX4300 switches, you can select the name from a list.

Member Interface 1

Specifies a logical interface containing multiple trunk interfaces.

Select a trunk interface from the list.

Member Interface 2

Specifies a trunk interface containing multiple VLANs.

Select a trunk interface from the list.

Select Primary Interface

Enables you to specify one of the interfaces in the RTG as the primary link. The interface without this option is the secondary link in the RTG.

  1. Select the option button.

  2. Select the primary interface.

Dynamically select my active interface

Specifies that the system dynamically select the active interface.

Select the option button.