Configuring Data Traffic Support - Cisco 7604 Configuration Manual
Ios software configuration guide
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Chapter 16
Configuring Cisco IP Phone Support
This example shows how to configure Fast Ethernet port 5/1 to send CDP packets that tell the
Cisco IP phone to use VLAN 101 as the voice VLAN:
Router# configure terminal
Router(config)# interface fastethernet 5/1
Router(config-if)# switchport voice vlan 101
Router(config-if)# exit
This example shows how to verify the configuration of Fast Ethernet port 5/1:
Router# show interfaces fastethernet 5/1 switchport
Name: Fa5/1
Switchport: Enabled
Administrative Mode: access
Operational Mode: access
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: off
Access Mode VLAN: 100
Voice VLAN: 101
Trunking Native Mode VLAN: 1 (default)
Administrative private-vlan host-association: none
Administrative private-vlan mapping: 900 ((Inactive)) 901 ((Inactive))
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Configuring Data Traffic Support
To configure the way in which the Cisco IP phone transmits data traffic, perform this task:
Command
Step 1
Router(config)# interface fastethernet slot/port
Step 2
Router(config-if)# mls qos trust extend
[cos cos_value ]
Router(config-if)# no mls qos trust extend
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 data traffic, note the following
information:
•
•
•
OL-4266-08
To send CDP packets that configure the Cisco IP phone to trust tagged traffic received from a device
connected to the access port on the Cisco IP phone, do not enter the cos keyword and CoS value.
To send CDP packets that configure the Cisco IP phone to mark tagged ingress traffic received from
a device connected to the access port on the Cisco IP phone, enter the cos keyword and CoS value
(valid values are 0 through 7).
You cannot use Cisco IOS software commands to configure whether or not traffic sent from a device
attached to the access port on the Cisco IP phone is tagged.
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
Purpose
Selects the port to configure.
Configures the way in which the Cisco IP phone
transmits data traffic.
Clears the configuration.
Exits configuration mode.
Verifies the configuration.
Configuring Cisco IP Phone Support
16-7
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