Configuring Voice Traffic Support - Cisco 7604 Configuration Manual
Ios software configuration guide
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Configuring Cisco IP Phone Support
Configuring Cisco IP Phone Support
These sections describe how to configure Cisco IP phone support:
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Voice VLANs are referred to as auxiliary VLANs in the Catalyst software publications.
Note
Configuring Voice Traffic Support
To configure the way in which the Cisco IP phone transmits voice traffic, perform this task:
Command
Step 1
Router(config)# interface fastethernet slot/port
Step 2
Router(config-if)# switchport voice vlan
{ voice_vlan_ID | dot1p | none | untagged}
Router(config-if)# no switchport voice vlan
Step 3
Router(config)# end
Step 4
Router# show interfaces fastethernet slot/port
switchport
Router# show running-config interface
fastethernet slot/port
When configuring the way in which the Cisco IP phone transmits voice traffic, note the following
information:
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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
16-6
Configuring Voice Traffic Support, page 16-6
Configuring Data Traffic Support, page 16-7
Configuring Inline Power Support, page 16-8
Enter a voice VLAN ID to send CDP packets that configure the Cisco IP phone to transmit voice
traffic in 802.1Q frames, tagged with the voice VLAN ID and a Layer 2 CoS value (the default is
5). Valid VLAN IDs are from 1 to 4094. The router puts the 802.1Q voice traffic into the voice
VLAN.
Enter the dot1p keyword to send CDP packets that configure the Cisco IP phone to transmit voice
traffic in 802.1p frames, tagged with VLAN ID 0 and a Layer 2 CoS value (the default is 5 for voice
traffic and 3 for voice control traffic). The router puts the 802.1p voice traffic into the access VLAN.
Enter the untagged keyword to send CDP packets that configure the Cisco IP phone to transmit
untagged voice traffic. The router puts the untagged voice traffic into the access VLAN.
Enter the none keyword to allow the Cisco IP phone to use its own configuration and transmit
untagged voice traffic. The router puts the untagged voice traffic into the access VLAN.
In all configurations, the voice traffic carries a Layer 3 IP precedence value (the default is 5).
Refer to
Chapter 41, "Configuring PFC QoS,"
Refer to the
"Configuring a LAN Interface as a Layer 2 Access Port" section on page 10-14
information about how to configure the port as a Layer 2 access port and configure the
access VLAN.
Chapter 16
Purpose
Selects the port to configure.
Configures the way in which the Cisco IP phone
transmits voice traffic.
Clears the configuration.
Exits configuration mode.
Verifies the configuration.
for information about how to configure QoS.
Configuring Cisco IP Phone Support
for
OL-4266-08
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