Vtp configuration

To exchange VTP messages, five requirements must be met:

• a switch has to be configured as either a VTP server or VTP client.
• the VTP domain name has to be the same on both switches.
• if present, the VTP domain password has to be the same.
• VTP versions have to match.
• the link between the switches has to be a trunk link.

1. What is VTP and how it works?
2. How do I find VTP configuration?
3. Why VTP is used?
4. What is VTP server and client?
5. What is ISL encapsulation?
6. Which VLAN is true?
7. How do I disable VTP domain?
8. How do I disable VTP?
9. What is VTP and STP in networking?
10. Why do we need VLAN Trunking Protocol VTP?
11. How is VLAN configured?
12. How do I know if VTP is enabled?
13. What is ISL port?
14. What is ISL Trunking?
15. What is VLAN trunking?

What is VTP and how it works?

VTP (VLAN Trunking Protocol) is a Cisco proprietary protocol used by Cisco switches to exchange VLAN information. ... VTP enables you to create the VLAN only on a single switch. That switch can then propagate information about the VLAN to every other switch on the network and cause other switches to create it.

How do I find VTP configuration?

To view VLAN Trunking Protocol (VTP) configuration information on Switch 1, open console connection to Switch 1 and run the "show vtp status" IOS command from privileged mode as shown below.

Why VTP is used?

VTP is CISCO proprietary protocol used to maintain consistency throughout the network or user can say that synchronizing the VLAN information in same VTP domain. VTP allows you to add, delete and rename VLANs which is then propagated to other switches in the VTP domain.

What is VTP server and client?

VTP has the following 3 different modes: Server – Gives the switch the ability to create, modify and delete VLANs. Client – This mode allows the switch assigned to participate in VTP and receive updates. You will not be able to create, modify or delete VLANs on a switch defined in Client mode.

What is ISL encapsulation?

ISL is Cisco's VLAN encapsulation protocol and is supported only on some Cisco equipment over the Fast and Gigabit Ethernet links. ... With ISL, an Ethernet frame is encapsulated with a header that transports VLAN IDs between switches and routers. With IEEE 802.1Q the tag is internal.

Which VLAN is true?

Which of the following is true regarding VLANs? You must have at least two VLANs defined in every Cisco switched network. All VLANs are configured at the fastest switch and, by default, propagate this information to all other switches. You should not have more than 10 switches in the same VTP domain.

How do I disable VTP domain?

With VTP V1 and V2 it is not possible to completely disable VTP on Cisco switches; the best you can do is to place the switch in the VTP transparent mode. VTP V3 adds the mode off option which effectively disables VTP.

How do I disable VTP?

To disable VTP, enter the set vtp domain domain name mode transparent command. This disables VTP from the domain, but does not remove the domain from the switch. Use the clear config all command to remove the domain from the switch.

What is VTP and STP in networking?

VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates VLAN on the whole local area network. VTP carries VLAN information to all the switches in a VTP domain. Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Local Area Networks.

Why do we need VLAN Trunking Protocol VTP?

VTP is responsible for synchronizing VLAN information within a VTP domain and reduces the need to configure the same VLAN information on each switch thereby minimizing the possibility of configuration inconsistencies that arise when changes are made.

How is VLAN configured?

Select Switching>VLAN>Basic > VLAN Configuration. ... From the VLAN menu, select the VLAN that you just created. In the IP address field, type the IP address that you want to assign to the VLAN routing interface. In the Subnet Mask field, type the subnet mask that you want to assign to the VLAN routing interface.

How do I know if VTP is enabled?

To see the VTP settings, use the show command. Passwords are listed with the password command. counters is a little less useful — unless you are not seeing any of the VLAN updates from neighboring switches.

What is ISL port?

An ISL is a connection between two switches through an Expansion Port (E_Port). ... ISL Trunking simplifies network design and reduces the cost of storage management by optimizing bandwidth utilization and enabling load balancing of traffic at the frame-level.

What is ISL Trunking?

Inter-Switch Link (ISL) Trunking is optional software requiring a license that allows you to create trunking groups of ISLs between adjacent switches.

What is VLAN trunking?

VLAN trunking enables the movement of traffic to different parts of the network configured as a VLAN. A trunk is a point-to-point link between two network devices that carry more than one VLAN. With VLAN trunking, you can extend your configured VLAN across the entire network.