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Packet Optimized Optical Transport Solutions
Packet Optimized Optical Transport Solutions

... Traditional ring technologies use source stripping. This is in efficient, SRP uses destination stripping. Destination stripping allows the destination node to remove the packet from the ring freeing up bandwidth on other non-related paths. ...
UKLight Dark Fibre Network - National e
UKLight Dark Fibre Network - National e

... Offer greater variety of services without restriction by the carriers infrastructure ...
CCENT Review
CCENT Review

... NIC is a valid standards-based one but will not work in this environment? 802.11a ...
Final Lecture: Course Overview
Final Lecture: Course Overview

... •  After collision, wait random time before retrying ...
Local Area Networks
Local Area Networks

... •Sometimes necessary to connect local area network to another LAN or to wide area network •Local area network to local area network connections often performed with bridge-like device •Local area network to wide area network connections usually performed with router •Switch - can be used to intercon ...
Virtual Private Networks - Mathematics and Computer Science
Virtual Private Networks - Mathematics and Computer Science

...  Uses IP datagrams for encapsulation  Uses TCP for tunnel maintenance  Uses encryption and compression ► L2TP ...
Internet protocols - St. Xavier`s College
Internet protocols - St. Xavier`s College

... of the Internet layer are IP, ARP, ICMP, and IGMP. •The Internet Protocol (IP) is a routable protocol responsible for IP addressing, routing, and the fragmentation and reassembly of packets. •The Address Resolution Protocol (ARP) is responsible for the resolution of the Internet layer address to the ...
Chapter One
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... After installing protocols, they must be binded to NICs and services they run on or ...
Chapter 1. Introduction to Data Communications
Chapter 1. Introduction to Data Communications

... • Sometimes called narrowband ISDN • Provides digital dial-up lines (each requires): – An “ISDN modem” which sends digital transmissions is used • Also called: Terminal Adapter (TA) – An ISDN Network Terminator (NT-1 or NT-2) • Each NT needs a unique Service Profile Identifier (SPID) ...
Multimedia Data Streaming - Indian Institute of Science
Multimedia Data Streaming - Indian Institute of Science

... computer supplying the multimedia stream. Each client that connects to the server receives a separate stream, which rapidly uses up network bandwidth. IP Multicast: One computer sends a single copy of the data over the network and many computers receive that data. Only a single copy of the data is s ...
SmartRE: An Architecture for Coordinated Network
SmartRE: An Architecture for Coordinated Network

... How do ingresses and interior nodes maintain cache consistency? How do ingresses identify candidate packets for encoding? ...
Countering Evolving Threats in Distributed Applications
Countering Evolving Threats in Distributed Applications

... • Each cluster forms a general story about the emails contained within it from which the basis of the attack can be deduced – For example, for cluster 4, the attack is trying to get the user to update information for their banking account. ...
15-744: Computer Networking
15-744: Computer Networking

... • NIDS only has partial knowledge of what traffic the host sees (e.g., TTL expires, MTU) • Ambiguities in TCP/IP (e.g., Overlapping IP & TCP fragments) • Different OS implement standard differently ...
level 3sm secure access - Level 3 Communications
level 3sm secure access - Level 3 Communications

... time, demand for access to your corporate network is accelerating with globalization, new vendor partnerships and the incorporation of small remote offices. Every new connection can add another potential point of vulnerability to your infrastructure. Simply limiting access can restrict productivity ...
Document
Document

... datagram, sets this field to an initial value. Then, as datagram travels through the Internet, router by router, each router decrements this value by 1. If this value becomes 0 before the datagram reaches its final destination, the datagram is discarded. This prevent the datagram from going back and ...
ppt
ppt

... http://www.pbs.org/cringely/pulpit/pulpit20060302.html; Will Norton Nanog talk ...
Part I: Introduction
Part I: Introduction

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NP_ch04
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... Copies packet over bus to buffer in memory Informs CPU that packet has arrived ...
physcial_sci_networks_part1
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Modeling University Computer Laboratory using OPNET Software
Modeling University Computer Laboratory using OPNET Software

... network access. We divided these applications into two categories: (1) those that require Internet access, which we call the Internet applications and (2) those that obtain the necessary services on the local Rowan University network, which we call the local applications. Internet application traffi ...
08-Internet Protocols
08-Internet Protocols

... • Node must perform path discovery to find smallest MTU of intermediate networks • Source fragments to match MTU • Otherwise limit to 1280 octets ...
R. Bruno, M. Conti, E. Gregori, “Traffic Integration in Personal, Local
R. Bruno, M. Conti, E. Gregori, “Traffic Integration in Personal, Local

... between upper-layer protocols) and segmentation and reassembly. The latter feature is required because the baseband packet size is smaller than the usual size of packets used by higher-layer protocols. In legacy LANs, users locate services such as file server, print server, and name server by some s ...
Treating Software-Defined Networks Like Disk Arrays.
Treating Software-Defined Networks Like Disk Arrays.

... networks perform loop elimination and spanning tree construction by running a distributed algorithm such as the Spanning Tree Protocol (STP) or the improved Rapid Spanning Tree Protocol (RSTP) [19]. In STP and RSTP, Ethernet switches in the same network segment collaborate and agree on which networ ...
netflowtracker
netflowtracker

... a higher level view. The reports are based on URLs and can be built from any number of report items available elsewhere in the application and are interactive. For example, Figure 2 includes a network ...
Network Edge and Network Core
Network Edge and Network Core

... • communication infrastructure enables distributed applications: • Web, email, voice over IP, games, ee-commerce, file sharing ...
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Deep packet inspection

Deep Packet Inspection (DPI, also called complete packet inspection and Information eXtraction or IX) is a form of computer network packet filtering that examines the data part (and possibly also the header) of a packet as it passes an inspection point, searching for protocol non-compliance, viruses, spam, intrusions, or defined criteria to decide whether the packet may pass or if it needs to be routed to a different destination, or, for the purpose of collecting statistical information. There are multiple headers for IP packets; network equipment only needs to use the first of these (the IP header) for normal operation, but use of the second header (TCP, UDP etc.) is normally considered to be shallow packet inspection (usually called Stateful Packet Inspection) despite this definition.There are multiple ways to acquire packets for deep packet inspection. Using port mirroring (sometimes called Span Port) is a very common way, as well as an optical splitter.Deep Packet Inspection (and filtering) enables advanced network management, user service, and security functions as well as internet data mining, eavesdropping, and internet censorship. Although DPI technology has been used for Internet management for many years, some advocates of net neutrality fear that the technology may be used anticompetitively or to reduce the openness of the Internet.DPI is used in a wide range of applications, at the so-called ""enterprise"" level (corporations and larger institutions), in telecommunications service providers, and in governments.
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