Q12Infrastructure and Design
An engineer needs to configure switch port 2/8 to send CDP packets that configure a connected Cisco IP phone to trust tagged traffic on its access port. Which command is necessary to complete this configuration? ```text Router# configure terminal - Router(config)# interface gigabitethernet 2/8 Router(config-if)# description Cube E43.308-6491 ```
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C 1
Selected Answer: C
C is correct.
The trusted boundary device verification feature sets ports on the switch to apply configured QoS port trust commands only when the Cisco Discovery Protocol (CDP) confirms that the device connected to the port is a Cisco IP phone.
The trusted boundary feature is implemented with the platform qos trust extend command.
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-5SY/config_guide/sup6T/15_5_sy_swcg_6T/voip.html#65307