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What is meant by trunking protocol?
VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of Virtual Local Area Networks (VLAN) on the whole local area network. To do this, VTP carries VLAN information to all the switches in a VTP domain. VTP advertisements can be sent over 802.1Q, and ISL trunks.
What is VLAN Trunking Protocol VTP and how is it used in a network?
Virtual local area network (VLAN) trunking Protocol or VTP is a proprietary protocol from Cisco that allows networks to send network functionality through all of the switches in a domain. This technique eliminates the need for multiple configurations for VLANs throughout the system.
How many trunking protocols are there?
two trunking protocols
Trunking Protocol Standards. There are two trunking protocols used on modern communication networks: Inter-Switch Link (ISL) from Cisco and the aforementioned nonproprietary IEEE 802.1Q. Of the two, IEEE 802.1Q is the industry standard. Even Cisco switches now use IEEE 802.1Q (dot1q) by default.
Why is trunking important to VLAN configuration?
Why is trunking important to VLAN configuration? Trunking is important to VLAN configuration because when frames are sent over a trunk port is tagged with the VLAN ID number so the receiving switch knows which VLAN the frame belongs too.
What is trunk switch?
A trunk port is a type of connection on a switch that is used to connect a guest virtual machine that is VLAN aware. Generally, all frames that flow through this port are VLAN tagged.
What is trunk mode in VLAN?
Information About VLAN Trunks. Trunking Overview. A trunk is a point-to-point link between one or more Ethernet switch interfaces and another networking device such as a router or a switch. Ethernet trunks carry the traffic of multiple VLANs over a single link, and you can extend the VLANs across an entire network.
Why is it called trunk port?
Take an example of how the tree trunk carries the water to every branch, similar to network trunk also multiple data and delivers to the correct location. The switch port carries traffic more than once in the one VLAN is term as Trunk port.
What is the purpose of trunking in VLAN?
Why is trunking important to VLAN configuration? With VLAN trunking, it’s possible to extend a VLAN across the network. When you implement multiple VLANs across a network, trunk links are necessary to ensure that VLAN signals remain properly segregated for each to reach their intended destination.
What is trunked VLAN?
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.
What is VLAN Trunking Protocol (VTP)?
It’s time to take a look at VLAN trunking protocol ( VTP ). VTP is a protocol that provides VLAN configuration to spread to the whole network. Using the Layer – 2 frames, VTP provides us to change VLAN names, manage VLANs, adding or deletin VLANs etc.
What is the use of VTP in Cisco?
VTP Concept. VLAN Trunking Protocol (VTP) is a Cisco Proprietary which basic aim is to manage all configured VLANs across a switched network. VTP helps to propagate and maintain VLAN configurations consistency to other switches on the network.
What happens to VTP advertisement after a trunk is established?
After a trunk is established between switches, VTP advertisement is exchanged between the switches. Both the server switch and client exchange and monitor advertisement from one another to ensure each has an accurate record of VLAN information. VTP advertisement will not be exchanged if the trunk between the switches is inactive.
What is VTP pruning and how do I enable it?
By enabling VTP pruning we’ll make sure there is no unnecessary VLAN traffic on trunks when there’s nobody in a particular VLAN. Depending on your switch model VTP pruning is either turned on or off by default. Let’s take a look at the configuration of VTP.