The unit of data, or packet, transmitted in a TCP/IP network. Each datagram contains source and destination addresses and data. See TCP/IP and UDP.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- sMonitor 4.2 build 1499 (Windows)
- sMonitor is a network monitoring software that allows you to verify the network connectivity of TCP/IP hosts on the Internet and LAN. The built-in NT service periodically pings, or checks TCP and UDP ports on network devices.If the destination host fails to reply to a ping, connection request, or user...
- Software downloads 2009-09-08
- Analyzing TCP/IP Networks with Wireshark
- View Available Dates and LocationsIn this lab-based course, you will discover effective Wireshark operations and packet-level TCP/IP communications by examining both properly and poorly performing networks as you prepare for the Wireshark Certification Exam. Spend half your class time learning the features of Wireshark, the world's most popular analyzer. After...
- Training 2008-09-01
- Control System for Internet Bandwidth Based on Java Technology
- This paper presents a Java-based real-time Internet access estimation tool for Quality of Service QoS in Internet accesses for Multimedia applications JEQoSIM. It is specially aimed for real-time multimedia applications which use the User Datagram Protocol UDP. The system is capable of estimating access capacity, available bandwidth and delay as...
- White papers 2008-07-07
- Cisco patches IOS vulnerabilities
- Cisco patched multiple vulnerabilities on Wednesday with the most important fixes covering data-link switching, IPv6 and VPN flaws. Among the highest rated patches (all rated 7 or above on a 10 scale): Cisco patched multiple vulnerabilities in the Data-link Switching DLSw feature in its...
- Blog posts 2008-03-26
- Akamai counters commoditization fears by extending WAN acceleration to business, communications applications
- Akamai's announcement this week of much broader acceleration benefits -- to all IP applications, including VOIP -- extends its WAN optimization capabilities into enterprises and out to remote users. The move comes as Akamai is facing perceptions its services are increasingly commodities, and therefore under downward price pressure. ...
- Blog posts 2007-10-09
- Secure CS-MARS
- Cisco Security Monitoring, Analysis, and Response System (CS-MARS) is a powerful tool that can dramatically increase your knowledge of activity on your network. But as a topology-aware SIM product, CS-MARS often contains sensitive information that needs to be protected from malicious users. If an attacker gains access to...
- Book chapters 2007-08-08
- Realtek network driver silently corrupts data
- Realtek network driver silently corrupts datathanksThat clears up a couple of blue screen mysteries that went away after changing a NIC.Not just the driverGeorge, TCP/IP is [b]supposed[/b] to be robust in cases like this -- bitflips lower in the stack [b]should[/b] be caught at the datagram level.If a driver error...
- Discussion threads 2007-07-29
- Application-Level QoS: Improving Video Conferencing Quality Through Sending the Best Packet Next
- In a traditional network stack, data from an application is all transmitted in the order that it is received. This paper proposes an algorithm where information about the priority of packets and expiry times is used by the transport layer to reorder or discard packets to optimise the use of...
- White papers 2007-06-28
- A New Prioritized Fast Handoff Protocol for Mobile IP
- Mobile IP protocol has been designed to handle global and seamless user's mobility on the Internet. However, Mobile IP suffers from handoff latency due to slow handoff discovery and binding association notification. To reduce this latency, the paper proposes a new handoff protocol where it attributes a high priority to...
- White papers 2006-11-19
- Performance of Constant Quality Video Applications Using the DCCP Transport Protocol
- The Datagram Congestion Control Protocol DCCP is a transport protocol that was developed by the IETF to provide an unreliable congestion controlled delivery of data packets. It removes the shortcomings of TCP and UDP for real-time applications, while combining the advantages of both these protocols. This paper studies the influence...
- White papers 2006-08-29
- Avoiding the IP Fragmentation Process at the Application Layer of the OSI Reference Model
- The modern recommendations regarding the IP fragmentation process is to avoid it. There are different possibilities regarding the OSI model layers to implement logic for avoiding fragmentation. The present study describes some considerations about implementing the IP fragmentation avoiding at the Application Layer. The fragmentation and reassembly function ensures compatibility...
- White papers 2006-07-06
- Denial of Service Tuning for Cisco IOS Software Firewall and Intrusion Prevention System
- Cisco IOS Stateful Packet Inspection maintains counters of the number of "Half-open" TCP connections, as well as the total connection rate through the firewall and intrusion prevention software. These half-open connections are TCP connections that have not completed the SYN - SYN/ACK - ACK handshake that is always used by...
- White papers 2006-07-01
- Aspicore GSM Tracker 3 3.19 (Mobile)
- PurposeThe product is intended for fleet tracking, field force automation or personal location tracking.Would you like to... View the whereabouts of your entire fleet from your desktop? Know the closest vehicle or technician to the next job site? Access yesterday's detailed route history for every vehicle in your fleet? Want...
- Software downloads 2006-06-30
- HiPing 1.65 b.419 (Windows)
- HiPing is useful in testing and debugging TCP/IP troubles. It transmits an ICMP(*) echo datagram to a remote system. If the remote returns the message, the connection is considered valid. If the remote system does not echo the message, it only means that the remote system did not respond. That...
- Software downloads 2006-04-19
- PortSnoop 1.02 (Windows)
- PortSnoop is a network monitoring utility that displays all current applications accessing the network using the Transmission Control Protocol TCP or User Datagram Protocol UDP protocol.
- Software downloads 2006-03-22
- WinTFTP Server Pro 2.0.1.187 (Windows)
- WinTFTP Server Pro is a multithreaded server created to allow network administrators and users to save configuration files from various network equipments like routers, VPN devices, smart hubs, network switches. Also, the server together with the client can be used to transfer files between computers. The client software is included...
- Software downloads 2006-02-27
- Feature Comparison of the NXU-2 Vs. NXU-2A
- The principal feature of the JPS Communications NXU-2 Network Extension Unit is to provide a means to capture analog audio, used by land mobile radio systems (radio, basestation, dispatch console, etc), and convert that audio to digital datagram, which in turn, can be transported over a TCP/IP network in the...
- White papers 2006-02-03
- Aspicore GSM Tracker 2 2.20 (Mobile)
- PurposeThe product is intended for fleet tracking or personal location tracking.Would you like to... View the whereabouts of your entire fleet from your desktop? Know the closest vehicle or technician to the next job site? Access yesterday's detailed route history for every vehicle in your fleet? With a system based...
- Software downloads 2005-12-11
- Detect and prevent hacking reconnaissance
- This sample chapter, taken from Penetration Testing and Network Defense, examines how you can discover live hosts on your target network by using various information-gathering techniques. Learn best practices for the detection and prevention of reconnaissance techniques.This sample chapter, taken from Cisco Press' Penetration Testing and Network...
- Book chapters 2005-11-18
- Why Google hired Vint Cerf
- Why Google hired Vint CerfWhy Google hired Vint Cerf[i]said databases filled with geographically indexed material will soon help people easily retrieve lists of local hospitals, ATMs or cafes on mobile devices.[/i]They hired him just for that?? My cell phone had an application I could download that did the very...
- Discussion threads 2005-09-09
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