VLAN lists are not showing up in Spectrum 24.3.x.

Products

• Network Observability
• Spectrum

Issue/Introduction

After upgrading to Spectrum 24.3.x we noticed that our VLAN lists that were populated successfully in previous versions of Spectrum are no longer showing up in OneClick.

Environment

Spectrum 24.3.x

Cause

Devices are being discovered too quickly and the VLAN list doesn´t have enough time to populate correctly.

This only happens on the much larger, backbone switches that have a very large number of vlans.

Resolution

There is a CLI action that can be run against the device model handle that will allow Spectrum to rebuild the VLAN list.

 

From $SPECROOT/vnmsh

 

type ./connect.  then run

 

./update action=0x3390000 mh=(DEVICE MODEL HANDLE)

 

Where (DEVICE MODEL HANDLE) is the model handle of the device that does not have the VLAN list showing.