IP Station on VLAN with Cisco Catalyst PoE swtich

This article shows how to configure an IP Station for use with VLAN and a computer attached on the second interface (P2), using Cisco smartport setup.

Cisco Catalyst 2960 PoE switch config

VLAN configured on the switch:

• VLAN 100: Prod (PC network)
• VLAN 126: VoIP (Phone network)

Configuration with the webinterface

When the VLANs are configured on the switch you can easily use the smartport setup on the switch to configure the ports for Cisco Phone+Desktop, which will add the correct config on the selected port(s) and also add QoS policy needed to set priority to VoIP traffic on the switch. You will typical configure all ports the same to make patching easy.

As shown in the picture below, VLAN 100, the PC network, will be configured as the "Access VLAN", so that if you should patch a computer to the switch port instead of an IP Station Phone, you will still have access. If you attach an IP Station, the IP Station will receive the "Voice" LAN and forward the PC VLAN to the attached PC, if the IP Station is configured correct.

Configuration with CLI

Needed CLI config to setup Cisco Smartports:

mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7
mls qos srr-queue output cos-map queue 3 threshold 3 2 4
mls qos srr-queue output cos-map queue 4 threshold 2 1
mls qos srr-queue output cos-map queue 4 threshold 3 0
mls qos

macro global description cisco-global
errdisable recovery cause link-flap
errdisable recovery interval 60

vlan internal allocation policy ascending

interface FastEthernet0/1
description Phone+Desktop
switchport access vlan 100
switchport mode access
switchport voice vlan 126
switchport port-security maximum 2
switchport port-security
switchport port-security aging time 2
switchport port-security violation restrict
switchport port-security aging type inactivity
mls qos trust cos
macro description cisco-phone
spanning-tree portfast
spanning-tree bpduguard enable

IP Station config

The IP Station VLAN is given priority creating QoS for VoIP.

Configuration with webinterface