When configuring VLAN members on a network interface via the Command Line Interface (CLI), the changes are successfully applied and verified using operational commands.
However, the newly assigned VLANs do not appear under the Interfaces > Ports section in the J-Web user interface. Instead, only one vlan is visible in this case the DEFAULT VLAN.
Example Scenario:
CLI Configuration:
set interfaces ge-0/0/1 unit 0 family ethernet-switching vlan members REP
Verification (CLI): The command "show vlan REP" correctly reflects that interface ge-0/0/1 is a member of the vlan REP.
J-Web View: Under Port Configuration, the interface still only displays DEFAULT (1) but its missing vlan REP
.
This issue occurs due to a version mismatch between the Junos OS software image and the installed J-Web Application Package.
Example:
Junos OS Version: 24.4R2.23J-Web Application Package: 25.2A1.1
Check the J-Web Release Compatibility Matrix to confirm the J-Web application package is compatible.
A version that is newer than or mismatched with the core Junos OS major release can cause unexpected behaviors. For example, it can prevent J-Web from properly rendering configuration schemas updated via the CLI.
To resolve this issue, you must align the J-Web application package with the recommended version for your Junos OS release.
Step 1: Verify the software mismatch
Run the following command to check your current running versions: user@switch> show version Cross-reference the output with the
J-Web Release Compatibility Matrix.
Step 2: Remove the incompatible J-Web package
Uninstall the current mismatched package (25.2A1.1 in this scenario): user@switch> request system software delete jweb-ex-app
Step 3: Install the matching J-Web package
Download the compatible version matching your OS release (e.g., 24.4A1 for Junos 24.4R2) from the Juniper Support Portal, copy it to the device, and install it: user@switch> request system software add /var/tmp/jweb-ex-app-24.4A1.tgz
Step 4: Verify the fix
Clear your browser cache, log back into J-Web, and navigate to Interfaces > Ports. The CLI-configured VLAN (e.g., REP) should now display correctly under the VLAN column