Separate Vlan For Voice And Data; Port Configuration For A Single Subnet - Cisco WS C4224V 8FXS - 200Mbps Ethernet Switch Software Configuration Manual

Chapter 1 Product Overview

Separate VLAN for Voice and Data

Note

Port Configuration for a Single Subnet

OL-2031-02
Unlike the Catalyst 3500, you do not need to preconfigure VLANs with a VLAN
database command. To be consistent with Cisco IP Telephony QoS design
guidelines, you should configure a separate VLAN for voice and data. The
following example shows a recommended configuration.
interface FastEthernet5/22
no ip address
duplex auto
speed auto
switchport access vlan 60
switchport voice vlan 160
snmp trap link-status
spanning-tree portfast
This sample configuration instructs the IP phone to generate a packet with an
802.1q VLAN ID of 160 and an 802.1p value of 5 (default for voice bearer
traffic).
Portfast is supported only on nontrunk ports.
If you have only a single subnet available, use the same subnet for voice and data.
The following sample configuration shows a port configuration for a single
subnet.
interface FastEthernet5/23
no ip address
duplex auto
speed auto
switchport access vlan 160
switchport voice vlan dot1p
snmp trap link-status
spanning-tree portfast
This sample configuration instructs the IP phone to generate an 802.1 Q frame
with a null VLAN ID value and an 802.1p value (default is CoS of 5 for bearer
traffic). The voice VLAN and data VLAN are both 160 in this example.
Catalyst 4224 Access Gateway Switch Software Configuration Guide
Configuration Guidelines
1-19