To transmit data from one point to another. In a unicast system, even though multiple users might request the same data from the same server at the same time, duplicate data streams are transmitted, one to each user. Contrast with multicast.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- 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
- Cisco delivers next-generation switch--Nexus 7000
- Cisco is rolling out its Nexus 7000 family of data center-class switches that Jayshree Ullal, senior vice president of Data Center, Switching and Services at Cisco, said was the most significant announcement by the company in the last decade. The Nexus 7000 is a modular mega-switch that...
- Blog posts 2008-01-27
- Overview of QoS Routing
- QoS routing has been recognized as an important part in the evolution of QoS service offerings in the network. The goal of routing solutions is twofold: satisfying the QoS requirements for every admitted connection, and achieving global efficiency in resource utilization. This paper describes some of QoS-based routing issues and...
- White papers 2008-01-01
- Pipelined Broadcast on Ethernet Switched Clusters
- This paper considers unicast-based pipelined broadcast schemes for clusters connected by multiple Ethernet switches. By splitting a large broadcast message into segments and broadcasting the segments in a pipelined fashion, pipelined broadcast may achieve very high performance. Algorithms are developed for computing various contention-free broadcast trees on Ethernet switched clusters...
- White papers 2008-01-01
- ICMI - Implementing A Cisco Multicast Infrastructure
- View Available Dates and LocationsIn this course, you will learn how infrastructures are multicast enabled to support the efficiency of multicast business applications and services. Learn to identify Cisco products and protocols required to implement multicast solutions in both local and wide area networks within your...
- Training 2008-01-01
- Unreal Media Server (zip)
- Unreal Media Server is a streaming server for Windows platforms, designed to provide multimedia delivery over LAN and Internet. Supported file formats: AVI(DivX, XVid, any encoding), MPEG-1/2/4, WMV/WMA, ASF, MP3, QuickTime. Playlist functionality allows to automatically play all the files of server's virtual folder in a loop mode. Live media...
- Software downloads 2007-12-11
- 120 Mbps upstream? Even 30 Mbps? Come on- who really needs it?
- Note: I've amended this post with corrective information, including this from our networking guru, George Ou. George,an actual engineer, points out: You cannot claim DOCSIS 3.0 is 160/120 down/up service and compare it to 50/30 down/up FiOS service. That is grossly misleading. 160/120 down/up in...
- Blog posts 2007-12-03
- TimeWarp (zip)
- The TimeWarp software sets your computer's clock from a time server using the Simple Network Time Protocol SNTP. Using your computer's Internet connection, timing messages from an SNTP time server can be obtained automatically to set your computer clock. TimeWarp operates in unicast mode where it sends a message to...
- Software downloads 2007-11-28
- RemoveAllNLBSettings Tool for Internet Security and Acceleration (ISA) Server 2006 Enterprise Edition (EXE)
- RemoveAllNLBSettings.cmd clears all Network Load Balancing NLB settings from an ISA Server array member, including bidirectional affinity BDA settings. ISA Server 2006 Enterprise Edition provides NLB functionality as follows: Use ISA Server to configure Windows Server 2003 NLB functionality in integrated mode using ISA Server Management. Integrated mode provides NLB...
- Software downloads 2007-09-14
- RemoveAllNLBSettings Tool for Internet Security and Acceleration (ISA) Server 2004 Enterprise Edition (EXE)
- RemoveAllNLBSettings.cmd clears all Network Load Balancing NLB settings from an ISA Server array member, including bidirectional affinity BDA settings. ISA Server 2004 Enterprise Edition provides NLB functionality as follows: Use ISA Server to configure Windows Server 2003 NLB functionality in integrated mode using ISA Server Management. Integrated mode provides...
- Software downloads 2007-09-14
- TFRC Veno: An Enhancement of TCP Friendly Rate Control Over Wired/Wireless Networks
- TFRC is a TCP-Friendly Rate Control protocol based on TCP Reno's throughput equation. It is designed to provide optimal service for unicast multimedia flow operating in the wired Internet environment. However, in wireless networks, TFRC, same as TCP Reno, suffers significant performance degradation. This paper proposes to make use of...
- White papers 2007-09-02
- Multicast With Wireless LAN Controllers (WLCs) and Lightweight Access Points (LAPs) Configuration Example
- This paper provides a configuration example on how to configure Wireless LAN Controllers WLCs and Lightweight Access Points LAPs for multicasting and communication with a multicast enabled wired network. Before Cisco Unified Wireless Network Software Release 3.2, when IP multicast was enabled, the controller delivered multicast packets to wireless LAN...
- White papers 2007-07-31
- MS Windows Load Balancing Server: Issues With Switching and Routing
- This paper addresses a problem where Windows Load Balancing Server WLBS causes slow traffic through switches. WLBS on Windows NT and Windows 2000 allows servers to load balance traffic between groups clusters of servers. WLBS operates by sharing a virtual IP address so that all servers see all traffic destined...
- White papers 2007-07-30
- FiOS - Verizon's long-term vision to the 10+ gigabit home
- As the computer and Internet revolution blooms, the one thing that is lagging behind is broadband connectivity. There's no question that the future of long-range high-speed telecommunication is Fiber, but different companies are taking different approaches. While AT&T is going to try and install fiber to within a mile of...
- Blog posts 2007-07-09
- Why HD movie downloads are a big lie
- There's a lot of buzz lately about the delivery of HD TV and Movie content over the Internet with shows like Lost being delivered by ABC.com and other video download services with XBox360 or iTunes. I even have friends and colleagues telling me that BlueRay or HD-DVD won't make it...
- Blog posts 2007-05-31
- HEAT: Scalable Routing in Wireless Mesh Networks Using Temperature Fields
- Existing unicast routing protocols like for example AODV are not suited well for wireless mesh networks as in such networks, most traffic flows between a large number of mobile nodes and a few access points with Internet connectivity. This paper proposes HEAT, an anycast routing protocol for this type of...
- White papers 2007-04-20
- ICANN: Anycast saved DNS root servers during attack
- ICANN: Anycast saved DNS root servers during attackWhat is the logic?of attacking the DNS root servers with a DDOS? I can sort of understand attacking say a bank server if they shafted you with overdraft fees, or such. But attacking the heart of the internet? Seems to mee that'd also...
- Discussion threads 2007-03-09
- Opportunistic Scheduling for Wireless Network Coding
- This paper addresses a scheduling problem for wireless network coding which has been recently proposed as a novel method to enhance the throughput in wireless networks. The wireless network coding involves broadcast transmission of a network-coded packet which contains unicast data to several receiving nodes. These receiving nodes have time...
- White papers 2007-02-28
- A Dynamic Stateful Multicast Firewall
- Enterprises are faced with the challenge of enabling IP multicast applications without exposing their network to multicast denial-of-service attacks. Current practice is to use firewalls and manually configure them on a per-multicast-session basis. This imposes a high work-load on the network administrator, and severely reduces flexibility for end-users. This paper...
- White papers 2007-02-24
- Network Monitoring: It Depends on Your Points of View
- End-to-end active network monitoring infers network characteristics by sending and collecting probe packets from the network edge, while probes traverse the network through multicast trees or a mesh of unicast paths. Most reported methods consider given source and receiver locations and study the path selection and the associated estimation algorithms....
- White papers 2007-01-24
Neighboring Terms
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