(1) To transmit data to multiple recipients on the network at the same time using one transmission stream to the switches, at which point data are distributed out to the end users on separate lines. Contrast with "unicast," in which there is a separate transmission stream from source to destination for each recipient. When sending large volumes of data, multicast saves considerable bandwidth over unicast. See IP multicast, IGMP and SRM.
(2) In digital television broadcasting, to send multiple standard TV (SDTV) programs in the allotted bandwidth, rather than one high-definition TV (HDTV) program.
(2) In digital television broadcasting, to send multiple standard TV (SDTV) programs in the allotted bandwidth, rather than one high-definition TV (HDTV) program.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- CIERS1 - CCIE 360 R&S Prep Boot Camp 1
- View Available Dates and LocationsThis intensive Boot Camp-style course is designed to help the CCIE Routing & Switching candidate determine exactly where they are in their process of preparing for the CCIE R&S practical exam and to fill technology gaps through lecture and labs....
- Training 2008-11-01
- TightProjector (exe)
- TightProjector is a software that can transmit the screen of a particular Windows computer to other computers in the same local-area network. The data is transmitted continuously, in real time, using multicast addressing and UDP protocol. There are two programs in the distribution: TightProjector sends the screen contents to the...
- Software downloads 2008-10-28
- Multicast - What Is It?
- When multiple receivers are required to get the same data at approximately the same time, multicast is a more efficient way of delivering data than unicast. A unicast packet has a single source IP address and a single destination IP address. A multicast packet has a single source IP,...
- White papers 2008-10-03
- Web 3.0 - the future of social networking
- Note: re-posted after withdrawing post a few days ago; no changes made since then. I would put this very much on par with a past Scoble moment, as I've been lucky enough to see something which actually impresses me. I've seen a lot over my life, the...
- Blog posts 2008-07-08
- VLC Media Player (dmg)
- VLC initially VideoLAN Client is a highly portable multimedia player for various audio and video formats, including MPEG-1, MPEG-2, MPEG-4, DivX, MP3, and OGG, as well as for DVDs, VCDs, and various streaming protocols. It also can be used as a server for unicast or multicast streams in IPv4 or...
- Software downloads 2008-06-12
- Critical IE, Bluetooth, DirectX flaws highlight MS Patch Tuesday
- Microsoft's Patch Tuesday train rumbled into the security station today with high-priority patches for multiple vulnerabilities affecting Internet Explorer, the Bluetooth stack in Windows and Microsoft DirectX. In all, the Redmond, Wash. software vendor released seven bulletins -- 3 critical, 3 important and 1 moderate -- with...
- Blog posts 2008-06-10
- SNAA - Securing Networks with ASA Advanced
- Instantly save $400 off the standard course price when you register on TechRepublic or ZDNet! Offer ends August 22, 2008.View Available Dates and LocationsIn this Authorized Cisco course, you will take your knowledge and skills on configuring, maintaining, and operating Cisco ASA 5500 Series Adaptive Security to the...
- Training 2008-06-01
- Addressing Heterogeneity, Scalability, and Privacy in Layered Multicast Congestion Control
- Multicast is attracting a resurgence of interest because it has a potential to address the explosively growing need for efficient streaming of large-volume Internet content. However, to realize the potential, large-scale multicast distribution requires effective congestion control. This paper designs SIM, a protocol that combines three distinct mechanisms (Selective participation,...
- White papers 2008-05-15
- IP Multicast Best Practices for Enterprise Customers
- With the growing popularity of IP Multicast applications, Enterprise customers are considering deploying or have already deployed IP Multicast in their networks. This paper describes the generally accepted best common practices for IP Multicast in Enterprise customer networks. It describes ways to optimize multicast delivery according to basic design principals...
- White papers 2008-05-01
- More USB fun: Copy 60 USB drives simultaneously
- The fine people at CNET's Crave blog always find the strangest things, and this adds to our growing archive of wacky-but-useful USB devices. The Virtual Console "USB Flash Drive Duplicator" can make digital copies of 60 -- that's right, as in six-oh -- 1GB drives in...
- Blog posts 2008-04-29
- p300 (exe)
- p300 is a program that allows you to share directories with other computers on a LAN or VPN. Other hosts running p300 are automatically discovered using IP Multicast. Bandwidth limiting is supported. You can configure which hosts may access your shared directories. You can use an integrated browser and download...
- Software downloads 2008-04-10
- Scalable AOI-Cast for Peer-to-Peer Networked Virtual Environments
- Networked Virtual Environments NVEs are computer-generated virtual worlds where users interact by exchanging messages via network connections. Each NVE user often pays attention to only a limited visibility sphere called Area Of Interest AOI where interactions occur. The dissemination of messages to other users within the AOI (i.e., the AOI...
- White papers 2008-03-22
- GRE Encapsulated Multicast Probing: A Scalable Technique for Measuring One-Way Loss
- Internet service providers increasingly wish to monitor the performance of customer traffic within their networks. This paper addresses the problem of scalably performing one-way loss measurements across specific network paths. This solution addresses the issue of scale by exploiting measurement features of the deployed network infrastructure to a large degree....
- White papers 2008-02-29
- Adding Voice to Java EE With SIP Servlets
- Session Initiation Protocol SIP is a signaling protocol that is used to set up, modify, and terminate a session between two endpoints. SIP can be used to set up a two-party call, a multi-party call, or even a multicast session for Internet calls, multimedia calls, and multimedia distribution. JSR 116:...
- White papers 2008-02-29
- 66% of US TV broadcasters plan more HDTV
- 66% of US TV broadcasters plan to provide consumers with more programming in HD, with its significantly superior picture and sound quality. 55% said they will use the additional channels resulting from DTV’s superior spectrum efficiency to multicast more local news, sports, weather, traffic and other community interest programs. 50%...
- Blog posts 2008-02-21
- MacBooks - to deploy or not to deploy, part 1
- MacBooks - to deploy or not to deploy, part 1Maybe I'm a bit harsh butare teachers asked what they think of their desk? The kids' desks? The tile floor? The windows? In fact, did anyone ever ask them if they WANTED Windows? The short answer is...
- Discussion threads 2008-02-20
- Android SDK update M5 has big changes for developers
- Earlier today, the Google Android team announced version m5-rc14 of the Android phone SDK so I downloaded it and put it through its paces. Everyone over on Planet Android seems to be focusing on the cosmetic differences in the Home application, but I suspect many carriers are going to chuck...
- Blog posts 2008-02-13
- New TechNet Webcast: Automated Windows Server 2008 Imaging and Deployment Using the Microsoft Deployment Accelerator (Level 300)
- Deployment tools for the Windows Server 2008 operating system have changed and most legacy tools will not support automated installation of Windows Server 2008. Microsoft Deployment is the next version of Business Desktop Deployment BDD 2007. The fourth-generation deployment accelerator supports Windows Server 2008 imaging and deployment. This webcast is...
- Webcasts 2008-02-06
- TechNet Webcast: Automated Windows Server 2008 Imaging and Deployment Using the Microsoft Deployment Accelerator (Level 300)
- Deployment tools for the Windows Server 2008 operating system have changed and most legacy tools will not support automated installation of Windows Server 2008. Microsoft Deployment is the next version of Business Desktop Deployment BDD 2007. The fourth-generation deployment accelerator supports Windows Server 2008 imaging and deployment. This webcast explains...
- Webcasts 2008-02-06
- Painful lesson in OLPC mesh networking for Mongolians
- Painful lesson in OLPC mesh networking for MongoliansYou all Jump around too much!!The biggest problem I see with the Mesh is that a hop basically jumps around from computer to computer looking for a way back home. That is a lot of jumping. Then you have the fact...
- Discussion threads 2008-01-30
Neighboring Terms
Premier Vendor Content Whitepapers, webcasts & resources from our Power Center Sponsors
- Do more. Sacrifice less
-
"Intel® Xeon® processor-based servers are optimized for virtualization and allow IT to load more virtual machines without sacrificing speed. They can also help you save time and money while delivering great performance, flexibility, and headroom for growth.
- See the benefits of hardware-based virtualization >>
All-in-One Printers
- 10 things to look for in an all-in-one printer A multifunction printer may offer the convenient, consolidated functionality your organization needs, but there are a lot of choices out there. Before making a selection, be sure to consider these key factors.
- From our sponsors
- HP Small Business LaserJet Printers
-
HP Laser Jet M3035 MFP series Starting at $1,599. SHOP NOW
- New HP Color LaserJet CP3525n Printer Starting at $699. SHOP NOW
-
