Sponsored White Papers, Webcasts, and Downloads
ZDNet Resources
- Multi-Hop Wireless Networking With OSPF: MPR-Based Routing Extensions for MANETs
- Incorporating multi-hop wireless networks in the IP infrastructure is an effort to which a growing community participates. One instance of such activity is the extension of the routing protocol OSPF, for operation on MANETs. Such extension allows OSPF, the most widely deployed interior gateway routing protocol on the Internet, to...
- Tags: Open Shortest Path First, Extension, Wireless, Productivity, Wi-Fi, Wireless And Mobility
- White papers 2009-02-02
- Simulative Comparison of the Performance of MPLS Protection Switching and OSPF Routing
- Due to the growing commercial importance of the Internet, resilience is becoming a key design issue for future IP-based networks. Reconfiguration times on the order of a few hundred milliseconds are required in the case of network element failures - far away from the slow rerouting of current implementations. Besides...
- Tags: Performance, MPLS, Network, Siemens AG, Open Shortest Path First, IP, Network Technology, Networking
- White papers 2009-01-01
- OSPF Monitoring: Architecture, Design and Deployment Experience
- Improving IP control plane routing robustness is critical to the creation of reliable and stable IP services. Yet very few tools exist for effective IP route monitoring and management. This paper describes the architecture, design and deployment of a monitoring system for OSPF, an IP intra-domain routing protocol in wide...
- Tags: Open Shortest Path First, IP
- White papers 2009-01-01
- Experience in Black-Box OSPF Measurement
- OSPF Open Shortest Path First is a widely used intra-domain routing protocol in IP networks. Internal processing delays in OSPF implementations impact the speed at which updates propagate in the network, the load on individual routers, and the time needed for both intra-domain and inter-domain routing to reconverge following an...
- Tags: Open Shortest Path First
- White papers 2009-01-01
- A Case Study of OSPF Behavior in a Large Enterprise Network
- Open Shortest Path First OSPF is widely deployed in IP networks to manage intra-domain routing. OSPF is a link-state protocol, in which routers reliably flood "Link State Advertisements" LSAs, enabling each to build a consistent, global view of the routing topology. Reliable performance hinges on routing stability, yet the behavior...
- Tags: Open Shortest Path First, Enterprise Network
- White papers 2009-01-01
- Avoiding Instability During Graceful Shutdown of Multiple OSPF Routers
- Many recent router architectures decouple the routing engine from the forwarding engine, allowing packet forwarding to continue even when the routing process is not active. This opens up the possibility of using the forwarding capability of a router even when its routing process is brought down for software upgrade or...
- Tags: Router, Open Shortest Path First, Routers & Switches, Network Technology, Networking
- White papers 2009-01-01
- MPLS Protection Switching Vs. OSPF Rerouting: A Simulative Comparison
- Resilience is becoming a key design issue for future IP-based networks having a growing commercial importance. In the case of element failures the networks have to reconfigure in the order of a few hundred milliseconds, i.e. much faster than provided by the slow rerouting of current implementations. Several multi-path extensions...
- Tags: MPLS, Siemens AG, Open Shortest Path First, IP, Resilience, Network Technology, Networking
- White papers 2008-01-01
- Adaptive Load Balancing With OSPF
- The objective of load balancing is to move traffic from congested links to other parts of the network. If the traffic demands are known, the load balancing can be formulated as an optimization problem. The resulting traffic allocation can be realized in the networks that use explicit routes, such as...
- Tags: Load Balancing, Open Shortest Path First, Network Technology, Networking
- White papers 2007-08-14
- Link-State Routing With Hop-by-Hop Forwarding Can Achieve Optimal Traffic Engineering
- Link-state routing with hop-by-hop forwarding is widely used in the Internet today. The current versions of these protocols, like OSPF, split traffic evenly over shortest paths based on link weights. However, optimizing the link weights for OSPF to the offered traffic is an NP-hard problem, and even the best setting...
- Tags: Princeton University, Traffic, Open Shortest Path First
- White papers 2007-07-19
- Scale OSPF and IS-IS without sacrificing stability or performance
- If you simply follow the OSPF and IS-IS standards, you may get a link state protocol implementation that is workable for small networks, but it will lack the stability, scalability, and accuracy necessary to survive in large-scale networks. For router vendors wanting to market to the largest network...
- Tags: Performance, Open Shortest Path First, IS-IS
- Book chapters 2007-06-22
- Automatic Provisioning of QoS Aware OSPF Configurations
- This paper presents a contribution for the development of network management tools able to automatically provide QoS aware routing configurations. In this perspective, a traffic engineering framework able to provide near-optimal OSPF configurations is presented. The devised solution takes into account the multiconstrained QoS demands of a given network domain...
- Tags: QoS, Provisioning, Open Shortest Path First, Configuration, Academy Publisher, Networking
- White papers 2007-04-01
- Large-Scale Network Simulation Techniques: Examples of TCP and OSPF Models
- Simulation of large-scale networks remains to be a challenge, although various network simulators are in place. This paper identifies fundamental issues for large-scale network simulation, and proposes new techniques that address them. First, it exploits optimistic parallel simulation techniques to enable fast execution on inexpensive hyper-threaded, multiprocessor systems. Second, the...
- Tags: Technique, Network, Open Shortest Path First, TCP, Productivity, Networking
- White papers 2007-01-01
- Network Design for OSPF Routing
- Internet Protocol IP traffic follows rules established by routing protocols, such as Open Shortest Path First OSPF. Each router computes shortest paths using weights assigned by the network operator, and creates destination tables used to direct each IP packet to the next router on the path to its final destination....
- Tags: Network, Open Shortest Path First, IP, Routing Protocol, Network Design, University Of Campinas, Internet Protocol Traffic, Networking, Network Technology
- White papers 2007-01-01
- Providing QoS in OSPF Based Best Effort Network Using Load Sensitive Routing
- There has been an upsurge in real time applications like Voice over IP, video streaming on the Internet. These applications require Quality of Service QoS to perform satisfactorily. But the current Internet is built on best effort infrastructure. Hence there is need for providing QoS on top of best effort...
- Tags: QoS, Network, Open Shortest Path First
- White papers 2006-12-16
- Survivable IP Network Design With OSPF Routing
- Internet protocol IP traffic follows rules established by routing protocols. Shortest path-based protocols, such as Open Shortest Path First OSPF, direct traffic based on arc weights assigned by the network operator. Each router computes shortest paths and creates destination tables used for routing flow on the shortest paths. If a...
- Tags: Router, Network, Open Shortest Path First, IP, IP Network, Internet Protocol Traffic, Networking, Routers & Switches, Network Technology
- White papers 2006-10-02
- OSPF Design Guide
- The Open Shortest Path First OSPF protocol is an Interior Gateway Protocol used to distribute routing information within a single Autonomous System. OSPF protocol was developed due to a need in the internet community to introduce a high functionality non-proprietary Internal Gateway Protocol IGP for the TCP/IP protocol family. The...
- Tags: Open Shortest Path First, Open Shortest Path First Protocol
- White papers 2006-04-06
- OSPF Redistribution Among Different OSPF Processes
- The Open Shortest Path First OSPF protocol is a hierarchical Interior Gateway Protocol IGP for routing in Internet Protocol, using a link-state in the individual areas that make up the hierarchy. This paper provides guidelines for the redistribution of OSPF between different processes. Redistribution between different processes is difficult, and...
- Tags: Redistribution, Open Shortest Path First, Open Shortest Path First Protocol
- White papers 2006-01-23
- Learn how to properly configure and use OSPF and EIGRP routing protocols
- This sample chapter, taken from CCNA Certification Library (CCNA Self-Study, exam #640-801), discusses link-state and balanced hybrid protocols do their work. Learn how two different types of routing protocols, link-state and balanced hybrid, learn the current best routes and put those subnets in the IP routing table....
- Tags: CCNA, Open Shortest Path First, Routing Protocol, Cisco Systems Inc.
- Book chapters 2006-01-18
- Improve network performance with routing redistribution of OSPF
- This sample chapter, taken from OSPF Network Design Solutions, 2nd Edition, discusses route redistribution and how it operates within OSPF. Redistribution in OSPF can be highly dependent on what type of route you are trying to redistribute. Learn about route redistribution and how it operates within OSPF.This...
- Tags: Redistribution, Network, Open Shortest Path First
- Book chapters 2006-01-18
- Bidirectional Forwarding Detection for OSPF
- Bidirectional Forwarding Detection BFD provides a method for network administrators to configure sub-second Layer 2 failure detection between adjacent network nodes. Furthermore, they can configure their routing protocols to respond to BFD notifications, and begin Layer 3 route convergence almost immediately. Provided that the appropriate caveats mentioned in this paper...
- Tags: Detection, Network, Open Shortest Path First, Cisco Systems Inc., Bidirectional Forwarding Detection, Networking
- White papers 2005-02-01
SmartPlanet
-
Thought-provoking progressive ideas on diverse topics that intersect with technology, business, and life, and matter to the world at large.
Visit SmartPlanet
- More from IBM
-
-
Innovate your business' process model, play against the market, compete against others on our scoreboards and WIN!
Try INNOV8 2.0: A BPM Simulator
-
Enabling Real-World Business Transformation through IBM Service Management
Read the EMA Analyst Report
White Papers and Webcasts
Doc delivers the scoop on today's enterprise content management, printer maintenance, and all other issues related to document management. It's the DocuMentor Blog.
When you transition from your existing Red Hat environment to SUSE Linux Enterprise from Novell, you can recognize dramatic cost savings, perhaps as much 50%
