Trunked networks get their name from the world of telephony. Traditionally two cities would bundle their connections together into a single thick line like the trunk of a tree, which is known as a trunked line. The local household loop lines operated like the branches of a tree, one line for each household. The reason why trunking has become so important is because it offers some huge advantages over conventional for larger agencies.
A conventional system is a system that has dedicated channels, allocated to a specific user or a group of users. Channel one might be fire, channel two might be fire chiefs, channel three might be animal control. If you want to communicate with a particular group in conventional, then you need to manually select a channel by hand either by moving a selection knob on the radio or by using a drop down menu. Conventional has some huge advantages and is still popular around the world today.
However there are some downsides as well. Remember conventional means using dedicated channels that are manually selected. It causes an inefficient use of radio channels. Channel one the fire channel , would probably be frequently busy. On the other hand, channel three the animal control channel , can go idle as it probably would not be as frequently used.
If a user wanted to add call groups, they would need to add a new selectable channel. In this sense, users are limited by how many channels they can select manually.
It also adds the headache of reprogramming all the radios anytime a new channel or user group is added. For small agencies, a conventional system is absolutely perfect. If they know the groups that will communicate together, a conventional system is a good choice. But as soon as the number of groups or the number of users working on a system increases, trunking may be a better option. Look for special NICs from trunking software vendors with on-board processors that can run the trunking software and thus reduce the load on the CPU.
Switches must be intelligent if they are to properly support trunked connections. Check your switch documentation before you attempt to implement trunking on your network. Not only is it often more economical to trunk Fast Ethernet lines than to upgrade to Gigabit Ethernet, but trunked Fast Ethernet cable runs can go farther than Gigabit Ethernet cable runs can.
However, in certain situations, trunking does not improve things. For example, trunking cannot speed up server-to-server backups. In this post, I am going to talk about the 10 computer networking concepts that every professional should master.
I will also include links to the main articles of each concept. This theoretical model explains how networks behave within an orderly, seven-layered Trunking is commonly used in very-high-frequency VHF radio and telecommunication systems.
Trunking can also be defined as a network that handles multiple signals simultaneously. The data transmitted through trunking can be audio, video, controlling signals or images. Telecommunication networks all across the globe are based on trunking. Trunking reduces the size of a telecom network and increases bandwidth. VHF radio used by police and control centers is also based on trunking. There has been a rapid development in data communications over the past few years, including the creation of the concept of trunking.
Users share connections with each other where trunking is applied so the connections are less dense and more understandable. Trunking uses communication media in parallel with increased bandwidth and communication speed. The switches are interconnected to establish these networks using trunking. Trunking is not limited to any medium since its main purpose is to maximize the bandwidth available in any type of network.
Cisco networks have trunk ports and access ports. The access ports, however, allow traffic to be carried to a specified VLAN only.
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