Capa 2 solutions are a critical part of the virtualization of the network. Here is an explanation arrested:
What is layer 2?
In computer networks, layer 2 refers to the data link layer (L2) of the OSI model. STIs operates in the physical read and provides data transfer without errors, reliable and fast of the data frames between devices on the network.
The L2 protocol battery consists of two subcaps: Mac (media access control) and CSMA/CD (multiple carrier -direction access/circular verification). The Mac sublayer is responsible for sending and receiving data frames in the data link layer, the subblaaya CSMA/CD provides and correction mechanisms.
What are the solutions of layer 2?
Layer 2 solutions are designed to improve network reliability, scalability and additional protection performance, redundancy and account. There are solutions that involve a new layer between
There are several types of layer 2 solutions:
- Frame Relay : A DEDICAT, which provides guaranteed delivery and without errors.
- ATM (asynchronous transfer mode) : A switching technology that is not willing to deliver dates.
- SONET/SDH
(Synchronous Digital Hisarchy):
Why do you need Layer 2 solutions?
Networks are prone to failures, errors and loss packages Dus to Varis Realch as:
- Physical media limitations
- Network congestion
- Defective or damaged devices
Cap 2 solutions help mitigate TE’s problems:
- Redundancy : Provide multiple routes for data transmission, ensuring that the network remains open operation operation.
- Failure tolerance : detection and correction of automatic errors, without human.
- Improve reliability : reduction of latency and loss of packages.
Real world examples
Come the common solutions of layer 2 include:
Marco interconnections (for example, T1, E1) for high -speed network connections
Ditribuated switch solutions
(for example, Cisco catalyst switches) for impromability and performance in performance
Red guilt switching capacilitas * (for example, Juniper Networks SRX) to provide protection and optimization of layer 2.
In Hummary, layer 2 solutions are designed to improve the reliability of the network, scale and additional performance protection, redundancy, reditional protection. There are solutions help mitigate the challenges associated with network failures, errors and packages, ensuring that BleWorks remains in the remains.
