Decision 2 is the important part of the network. Here are the sub -science:
What is this layer 2?
In the Computer Settles, the layer 2 will be tested to the data channel (L2) Model OSI. He works on the physicist and prefers without a scoop, renewed and fast -changing frame of data in the interstites in the network.
STEK PROCTOLS L2 stories from two underburns: Mac (Counter -Access to the Noviders) and CSMA/CD (Sense Sense Maily Access/Circular Chare). The Sublayer Mac is referred to the finance and the data of the data on the data of the data canal, in the time as Sublayer CSMA/CD provides the mechanisms and the correction.
What is the solution of the layer 2?
Decision of the harvest 2 is predicted for the exaltation of the attachment, the scale and the proceedings of the mesh by the predecessor of the add -on the staple, the reaches and stability to the break. These decrees are usually included in the addition of a new layer of the interpretation of L2 and the rest of the OSI.
There are several tips of solo layer 2:
- Reller Faraar : The highlighted scheme, which causes the guaranteed proceedings and without a scoop.
- Atm (ashron regime) : technology translatings, which use a few frames for the delivery of high -speed data.
3.
Do we need to resolve the harvest 2?
The networks to the s by, the scales and the packets by the plots, as:
- Physical Ogranic Novypers
- Settings
- Non -existent or subjected devices
Resolutions of the harvest 2 help to sniff these problems with the help:
- Foreignity : Introduction of the Central Pute for Transmitting Data, guaranteeing that the worker is left out, even if one way out will come out of the outfit.
- Sustained to the scoop : extinguishing and reproaching an automatic one, without a person.
- Encourageed Satisfaction : Squirreling of the Packets and Poters.
Primer Real World
Some of the resolutions of the general lesson 2 are included in the sieve:
* Frame interconnets
(behind, T1, E1) for high -iconic networking
* Resolutions Putting Switches (For example, Commutators Cisco Catalyst) for the enhancement
* Setties route with the reasons for the transception
(for example, series SRX SRX Juniper Networks) for the prevents of the staple and optimization of the lesson 2.
Such an image, the decrees of the level 2 are observed for the exaltation of the consumption, the scale and the proceedings of the mesh by the prevailing add -ons, the presence and stability to the disclosure. These decrees help you snap the problems, connected with the mesh, scraps and sweatshirts, indulging that the mesh remained in operation in the non -blogging provisions.