Configure Auto-sense Voice Information for IP Phones

The switch applies the voice configuration on Auto-sense-enabled ports, after it discovers IP phones on the port through Link Layer Discovery Protocol (LLDP) packets.

Before you begin

If you boot the switch with a configuration file, and not through Zero Touch Fabric Configuration, you must manually enable Auto-sense on specific ports.

About this task

Perform this procedure to configure Auto-sense voice information for IP phones.

A global Auto-sense voice configuration does not require Auto-sense LLDP authentication based on the following cases.

In a non NAC, a phone is classified based on the phones LLDP signaling.
In a NAC, a phone is authenticated based on EAP/NEAP radius authenticated, or if configured, it is LLDP authenticated

Procedure

Enter Global Configuration mode:

enable

configure terminal
Configure the customer VLAN ID:

auto-sense voice i-sid <1-15999999> c-vid <c-vid>
Configure the traffic as untagged:

auto-sense voice i-sid <1-15999999> untagged

Note

The phone receives VLAN ID as 0 and the tagging is configured as "untagged".

Example

Configure VLAN tagging as untagged:

Switch:1>enable
Switch:1#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Switch:1(config)#auto-sense voice i-sid 1234 untagged

Variable Definitions

The following table defines parameters for the auto-sense voice command.


Variable	Value
i-sid`<1-15999999>`	Specifies the service instance identifier (I-SID).
c-vid`<c-vid>`	Specifies the customer VLAN ID. Different hardware platforms support different customer VLAN ID ranges. Use the CLI Help to see the available range for the switch.
untagged	Specifies the VLAN tagging type as untagged. Note: The phone receives VLAN ID as 0 and the tagging is configured as "untagged".