The data or access VLAN is configured just as a regular access VLAN is configured using the switchport access vlan vlan-id command. The voice VLAN is configured using the switchport voice vlan vlan-id interface configuration mode command.
Besides, Which four steps are needed to configure a voice VLAN on a switch port?
Which four steps are needed to configure a voice VLAN on a switch port? (Choose four). Configure the switch port in access mode. Add a voice VLAN. Ensure that voice traffic is trusted and tagged with a CoS priority value.
Keeping this in mind, What is the correct command for voice VLAN? To display voice VLAN configuration for an interface, use the show interfaces interface-id switchport privileged EXEC command.
Which of the following commands should you use to configure a port for a voice VLAN 12?
Understanding the IP phone chapter 03
| Question | Answer | |
|---|---|---|
| Which of the following commands should you use to configure a port for a voice VLAN 12? |
a. switchport mode voice vlan 12 b. switchport trunk voice vlan 12 c. switchport voice vlan 12 d. switchport vlan 12 voice | c |
What is a voice VLAN?
Voice VLAN allows you to enhance VoIP service by configuring ports to carry IP Voice traffic from IP phones on a specific VLAN. VoIP traffic has a preconfigured OUI prefix in the source MAC address. Network managers can configure VLANs on which voice IP traffic is forwarded. … The system supports one Voice VLAN.
Which distinct type of VLAN is used by an administrator to access and configure a switch?
Which distinct type of VLAN is used by an administrator to access and configure a switch? Explanation: A management VLAN is used to remotely access and configure a switch. Data VLANs are used to separate a network into groups of users or devices.
Which step should be performed first when deleting a VLAN that has member switch ports group of answer choices?
10 Cards in this Set
| Which step should be performed first when deleting a VLAN that has member switch ports? |
Reassign all VLAN member ports to a different VLAN . |
|---|---|
| activates the current interface as trunk | Switch(config-if)# switchport mode trunk |
Which type of Switchport configuration between two switches is used to allow network traffic from multiple VLANs?
Trunking ports allow for traffic from multiple VLANs. A trunk port can be configured manually or created dynamically using Dynamic Trunking Protocol (DTP). DTP is a Cisco proprietary protocol where one use is to dynamically establish a trunk link between two switches.
How does Cisco voice VLAN work?
The voice VLAN feature enables access ports to carry IP voice traffic from an IP phone. When the switch is connected to a Cisco 7960 IP Phone, the phone sends voice traffic with Layer 3 IP precedence and Layer 2 class of service (CoS) values, which are both set to 5 by default.
Is voice VLAN tagged or untagged?
The voice traffic is an 802.1q-tagged packet with a VLAN ID (that might or might not be 0) and an 802.1p (3-bit layer 2 COS) with a specific value (typically 5 is assigned for voice traffic). Data traffic is always untagged.
Is voice VLAN necessary?
The curious thing is that at no point did anything actually require a voice VLAN. They just made life a lot easier and more “automagic”. You could deploy a perfectly good VoIP solution without using voice VLANs. Fast forward to today, when we talk about Unified Communications instead of IP telephony.
How do I set my voice VLAN port?
1.
How to Configure Voice VLAN?
- Create a VLAN on the switch and add interfaces to the VLAN to implement Layer 2 interworking.
- Configure the OUI to match the source MAC address of the received packet.
- Configure the voice VLAN function on the interface.
How does a Cisco IP phone discover which VLAN to use for voice traffic?
We configured the switch but how does the IP phone know which VLANs to use? Cisco IP phones use CDP (Cisco Discovery Protocol) for this. The IP Phone will learn through CDP which VLANs it should use. Other IP phones sometimes use LLDP (Link Laye Discovery Protocol) for this.
Why do we use voice VLANs?
A voice VLAN is a VLAN ( virtual local area network) that is specifically allocated for user’s voice data streams. It ensures the quality of voice traffic by improving the transmission priority of it when transmitted with other traffic.
Which type of VLAN is identified by a VLAN ID between 1006 and 4094?
Which type of VLAN is identified by a VLAN ID between 1006 and 4094 and not contained in updates of switches participating in a VTP domain? Extended range VLANs support VLANs 1006 through 4094, are saved in the running configuration (not the vlan. dat file), and are not transmitted in VTP updates.
What type of VLAN is used to separate the network into groups?
It is common practice to separate voice and management traffic from data traffic. A data VLAN, is sometimes referred to as a user VLAN. Data VLANs are used to separate the network into groups of users or devices.
Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?
A native VLAN is used to forward untagged frames that are received on a Cisco switch 802.1Q trunk port. Untagged frames that are received on a trunk port are not forwarded to any other VLAN except the native VLAN.
What happens to switch ports after the VLAN to which they are assigned is deleted?
What happens to switch ports after the VLAN to which they are assigned is deleted? … The ports stop communicating with the attached devices. Answers Explanation & Hints: The affected ports must be reconfigured for an active VLAN.
What is the first action in the boot sequence when a switch is powered on?
What is the first action in the boot sequence when a switch is powered on? Explanation: The first action to take place when a switch is powered on is the POST or power-on self-test. POST performs tests on the CPU, memory, and flash in preparation for loading the boot loader.
What happens when a device in VLAN 20 sends a broadcast Ethernet frame?
What happens when a device in VLAN 20 sends a broadcast Ethernet frame? All devices in all VLANs see the frame. Devices in VLAN 20 and the management VLAN see the frame. … Only devices that are connected to the local switch see the frame.
Which type of port can carry traffic from multiple VLANs?
Trunk Ports
A trunk port carries the traffic of multiple VLANs and by default is a member of all VLANs in the VLAN database.
What are the two types of ports of switches?
Common Switch Port Types on Network Switches
When the data switch resides in a VLAN, there may be three common switch port types: access port, trunk port and hybrid port. An Ethernet interface can function as a trunk port, an access port or a hybrid port.
Which type of switch is needed for two VLANs to communicate with each other?
In other words, a layer 2 switch allows devices in the same VLAN or subnet to communicate.