By Gilbert Held

This publication is a complete scam. i presumed Artech released complex technical books. This e-book is a comic story by way of bearing on the name to the content material. it really is is dedicate of whatever concerning service Ethernet. it truly is like a primer for Ethernet. don't WASTE YOUR funds in this bad BOOK!!
As anyone who has labored designing Ethernet apparatus i discovered the knowledge during this e-book very vulnerable. Chapters concerning the background of Ethernet and Ethernet body codecs are usually not worthy spending $80 on. This writer can be ashamed to have e-book his identify in this awful ebook.

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Extra resources for Carrier Ethernet: Providing the Need for Speed

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Thus, MPLS makes it easier to manage a network’s Quality of Service (QoS). Because the best way to explain the operation of MPLS is by example, we will do that next. Architecture In an MPLS network, packets need to be labeled so they can flow via predefined paths through the network. This labeling occurs at the edge of the network by Label Edge Routers (LERs). The prefix of labels provides an identifier that can include information based on the routing table entry to include destination, bandwidth delay, and other metrics such as data that reference the source IP address, Layer 4 port number, differentiated service value, and similar data.

1Q protocol is only applicable for tunneling Ethernet. Layer 2 Operations A Layer 2 site-to-site VPN enables Ethernet to flow between sites without first being converted to a higher-layer protocol such as IP. Layer 2 VPNs that provide site-to-site connectivity can be provisioned between computers, switches, or routers. Communications are based upon Layer 2 addressing, such as Ethernet’s 48-bit MAC addresses. There are several site-to-site protocols that operate at Layer 2; for example, AToM and L2P2 version 3 can be used to emulate circuits, providing a Layer 2 site-to-site VPN capability.

VPNs A second technology that represents a driving force for the use of Carrier Ethernet is the growth in the use of Virtual Private Networks (VPNs). VPNs are used to enable the creation of a private network across a shared public network infrastructure such as the Internet or even a metropolitan area network formed by the use of communications carrier facilities to interconnect two or more locations within a city or general metropolitan area. Types of VPNs There are two general types of VPNs: site-to-site and remote access.

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