Go under the hood of an operating Voice over IP network, and build your knowledge of the protocols and architectures used by this Internet telephony technology. With this concise guide, you'll learn about services involved in VoIP and get a first-hand view of network data packets from the time the phones boot through calls and subsequent connection teardown. With packet captures available on the companion website, this book is ideal whether you're an instructor, student, or professional looking to boost your skill set. Each chapter includes a set of review questions, as well as practical, hands-on lab exercises. Learn the requirements for deploying packetized voice and video Understand traditional telephony concepts, including local loop, tip and ring, and T carriers Explore the Session Initiation Protocol (SIP), VoIP's primary signaling protocol Learn the operations and fields for VoIP's standardized RTP and RTCP transport protocols Delve into voice and video codecs for converting analog data to digital format for transmission Get familiar with Communications Systems H.3 23, SIP's widely used predecessor Examine the Skinny Client Control Protocol used in Cisco VoIP phones in networks around the world

Go beyond layer 2 broadcast domains with this in-depth tour of advanced link and internetwork layer protocols, and learn how they enable you to expand to larger topologies. An ideal follow-up to "Packet Guide to Core Network Protocols," this concise guide dissects several of these protocols to explain their structure and operation.

This isn't a book on packet theory. Author Bruce Hartpence built topologies in a lab as he wrote this guide, and each chapter includes several packet captures. You'll learn about protocol classification, static vs. dynamic topologies, and reasons for installing a particular route.

This guide covers: Host routing--Process a routing table and learn how traffic starts out across a network Static routing--Build router routing tables and understand how forwarding decisions are made and processed Spanning Tree Protocol--Learn how this protocol is an integral part of every network containing switches Virtual Local Area Networks--Use VLANs to address the limitations of layer 2 networks Trunking--Get an indepth look at VLAN tagging and the 802.1Q protocol Routing Information Protocol--Understand how this distance vector protocol works in small, modern communication networks Open Shortest Path First--Discover why convergence times of OSPF and other link state protocols are improved over distance vectors

Take an in-depth tour of core Internet protocols and learn how they work together to move data packets from one network to another. With this concise book, you'll delve into the aspects of each protocol, including operation basics and security risks, and learn the function of network hardware such as switches and routers.

Ideal for beginning network engineers, each chapter in this book includes a set of review questions, as well as practical, hands-on lab exercises.Understand basic network architecture, and how protocols and functions fit together Learn the structure and operation of the Ethernet protocol Examine TCP/IP, including the protocol fields, operations, and addressing used for networks Explore the address resolution process in a typical IPv4 network Become familiar with switches, access points, routers, and other network components that process packets Discover how the Internet Control Message Protocol (ICMP) provides error messages during network operations Learn about the network mask (subnetting) and how it helps determine the network