First knowledge of MPLS Multi-Protocol Label Exchange Technology

At a complex network layer, we constantly integrate new technologies to optimize inter-network conversion and transmission. So, the MPLS Multi-Protocol Label exchange technology we will introduce to you today is an excellent protocol that integrates multiple technologies. With the increasing popularity of networks and technologies, it has been widely used.

Overview

MPLSMulti-Protocol Label Switching is a network technology that uses fixed-length labels to guide high-speed data transmission and exchange in a communication network. It is a label-Based IP route selection method. It uses a simplified technology to complete layer-3 and layer-2 conversion. It can provide a label for each IP packet, encapsulate the label and IP packet in the new MPLS packet, and determine the transmission path and priority of the IP packet.

Through MPLS, You can implement enhanced traffic engineering, and use the MPLS Traffic Engineering function to achieve load balancing, these relatively concise traffic engineering applications provide the most attractive opportunity for service providers and enterprises to improve overall network management and better utilize available bandwidth by leveraging MPLS. MPLS can also implement or enhance VPN, fast detour routing, QoS, and other functions. In addition, it can add new features, without changing the tag exchange forwarding mode, that is, there is no need to upgrade hardware ). To a certain extent, MPLS can be regarded as an improved ATM, because it is usually positioned as a unified technology that can support various services through a network facility.

Communication between MPLS Multi-Protocol Label Switching and existing networks

The existing ATM, FR, DDN, and PSTN will still exist for a long time and play their respective roles to bring revenue and profit to operators. Therefore, MPLS is required to support FR, ATM, IP, Ethernet, and other technologies, and to achieve smooth transition and upgrade. Therefore, there are ATM-MPLS intercommunication, Voice-MPLSMPLS Voice bearing), TDM-MPLS intercommunication and FR-MPLS intercommunication. The Intercommunication between MPLS and other networks is similar to that between ATM and other networks in the past. Generally, refer to network structure 1. Among them, IWF is a functional module, which can be an independent physical device, or can be integrated into other devices such as MPLSLER. in commercial use, the latter is usually more.

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MPLS Multi-Protocol Label exchange Common Reference Network Structure