Description field and PBA

[Lesswire_RalfS]

It is about the Description field when using PBA. The host name of the connected device is usually displayed in the Description field. However, if a PDA rule is used, which is displayed in the PBA Rule field, the name of the PBA rule is transferred to the Description field. Unfortunately, you can then no longer see which device is connected to the switch port, but the name of the PBA rule is displayed twice. In my opinion, the host name should still be visible in the Description field. The effect occurs in cnMaestro as well as in the switch GUI.

[Kinan]

Hi there! got an answer from our engineering team:

The default behavior for cnMatrix is to update the interface description with the PBA policy name when a PBA policy is applied to that port. This behavior can be controlled by the user. The description update can be disabled or the value used to update the description can be changed. PBA supports updating the interface description with the applied PBA policy name (default setting), the LLDP neighbor System Name or System Description. Incidentally, the LLDP neighbor System Name is used by default to update the interface description following neighbor discovery when a PBA policy is not currently applicable to the port.

On cnMaestro, this PBA behavior is controlled through User-Defined Overrides using the command pba update-port-desc <option>. Use the no command variant to disable PBA interface description updates entirely.

Hope this helps!

Best Regards
Kinan

[vku200 (V!jesh)]

Thanks @Kinan

@Lesswire_RalfS The command to disable PBA updating the port description is given below:

[Lesswire_RalfS]

Hi there

I used ‘pba update-port-desc lldp-sys-name’ in the User-Defined Overrides which brings back the device name into the description field. This works perfectly.

Thanks for help
Ralf