DescriptionNetwork Sentry Listing Voice VLAN as Default VLAN on Avaya Switch Ports
ScopeVersion: Network Sentry 7 & 8
SolutionVersion: Network Sentry 7 and 8
Issue: Network Sentry lists the Voice VLAN as the Default VLAN on Avaya switch ports in Topology, potentially causing hosts to be assigned to the Voice VLAN.
When a switch is discovered in Topology, Network Sentry reads the switch's VLAN configuration. During this initial read, whichever VLAN is set on the port is considered the Default VLAN for that port. The value does not update upon subsequent VLAN reads (only the Current VLAN is updated).
For Avaya switches, Network Sentry reads the Default VLAN from the VlanIdList column. This output can be viewed in the Avaya switch management UI. If that column contains 2 values for any given port, Network Sentry uses the first value for the Default VLAN value. This type of scenario is possible in situations where IP Phones are connected, as the first value may be a Voice VLAN.
Workaround:
Option 1. Ensure the VLAN ID intended to be the Default VLAN is listed first in the VlanIdList column of the Avaya switch prior to modeling in Network Sentry.
Option 2. If already modeled...
a. Navigate to Network Devices > Topology
b. Right click on the switch model and select Model Configuration.
c. Define the Voice VLAN
d. Click OK.
e. In the Ports panel, highlight the desired ports to edit using ctrl or shift key.
f. Right-click and select Modify Properties.
g. Check the Default VLAN box and enter the new value.
h. Click OK.
Option 3. Set the current VLAN as the Default VLAN via CLI for all ports on a switch. Run the following command in Network Sentry CLI:
ShowVlan -ip <switch IP address> -setCurrentAsDefault
