A complex routing protocol that shares information with other routers in order to determine the best path. IS-IS was the first comprehensive link state protocol, and OSPF and NLSP evolved from it. Link state protocols use characteristics of the route such as speed and cost as well as current congestion to determine the best path, which is typically computed by the Dijkstra algorithm.
Link state routers are updated from all the routers in the entire network by passing information from router to nearest router. Rather than continuously broadcast its routing tables as does a distance vector protocol, a link state protocol router only notifies its neighboring routers when it detects a change. Contrast with distance vector protocol and path vector protocol. See routing protocol, OSPF, NLSP and IS-IS.
Link state routers are updated from all the routers in the entire network by passing information from router to nearest router. Rather than continuously broadcast its routing tables as does a distance vector protocol, a link state protocol router only notifies its neighboring routers when it detects a change. Contrast with distance vector protocol and path vector protocol. See routing protocol, OSPF, NLSP and IS-IS.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- 'Fish' = 'Sex'? iPhone can't understand British accent
- The new voice-recognition search tool for the iPhone has problems understanding British accents, leading to some bizarre answers to spoken queries, according to a report by Agence France Presse. The free application, which allows iPhone owners to use the Google search engine with their voice, mistook the...
- Blog posts 2008-11-19
- First Core i7 desktops from Dell, Alienware and Gateway
- Now that Intel has officially released its Core i7 processor, fresh desktops are arriving daily. Dell has released four systems with Core i7 processors, including one mainstream Studio XPS desktop and three gaming rigs. Gateway also announced two FX-series gaming systems. Notably absent is HP, which has yet to announce...
- Blog posts 2008-11-19
- iPhone vs. Android development: Day 2
- Welcome to day 2 of a 5-day course on iPhone programming presented by Big Nerd Ranch. During the course I'll be blogging about the differences between Android and iPhone development. [Read: Day 1, Day 3, Day 4, Day 5] Yesterday we learned about creating...
- Blog posts 2008-11-18
- UPS saves $30M and goes Green with new HP printing and scanning handheld
- UPS partnered with Hewlett-Packard on the new sp400 All-in-One wireless handheld laser barcode scanner combo that can print directly onto packages, which saves paper and streamlines UPS's shipping processes. With all of the news of major corporations losing vast amounts of money...
- Blog posts 2008-11-18
- Echosign prepares for tipping point of e-signatures
- Electronic signatures aren't new. In fact, they've been equivalent to written signatures since 2000, under the Federal E-Sign Act. But adoption has been slow. Sure, my tax accountant may be submitting my electronic signature on my tax returns but recently, when it came time to put my out-of-state home on...
- Blog posts 2008-11-18
- CRM 2009 Forecast: How'd I Do in 2008? Gimme A High Four!
- Usually, when I begin my forecast for the coming year, I like to look at how I did the previous year - which is usually disconcerting to say the least. So, in honor of my first non-intro post for this ZDNET blog, I'm going to be nakedly transparent and show...
- Blog posts 2008-11-18
- Texas gov. intercedes in failing IBM project
- Texas Governor, Rick Perry, ordered state agencies to stop transferring data to IBM to prevent data loss on a failing project. Here's what's going on with this failure-in-progress. by Michael Krigsman
- Blog posts 2008-11-18
- Mobile industry calls for RFID payment push
- The GSM Association has called on manufacturers to build technology for contactless payments into their handsets by the middle of next year The GSM Association has called on phone manufacturers to build RFID technology into handsets from mid-2009, in a bid to kick start the mobile-payment industry. ...
- News items 2008-11-18
- News to know: Jerry Yang, MLB.com, Mark Cuban, USB 3.0
- Here are today's notable headlines. You can get News To Know via email alert and RSS daily: Sam Diaz: Jerry Yang to step down as CEO, back to Chief Yahoo Larry Dignan: With Yang out as Yahoo CEO, Steve Ballmer licks chops ...
- Blog posts 2008-11-18
- With Yang out as Yahoo CEO, Steve Ballmer licks chops
- Jerry Yang is no longer CEO of Yahoo. After a short and stormy tenure as CEO Yang is back to being Chief Yahoo. Steve Ballmer, Microsoft and a search deal--if not outright acquisition--may not be too far behind. The official line from Yahoo Techmeme: Yahoo today...
- Blog posts 2008-11-17
- iPhone vs. Android development: Day 1
- As I mentioned last week I've started learning more about developing for the Apple iPhone. This week I'll be sharing my experiences during a 5-day course on iPhone programming presented by Big Nerd Ranch. In particular, I'll be pointing out differences between Android and iPhone development. [Read:...
- Blog posts 2008-11-17
- MailShadowG syncs Outlook data to Google and thus your G1
- After checking out my T-Mobile G1 review and reading how I was looking for a way to get my Exchange information on my device, Clay sent me an email with a link to the press release announcing MailShadow for Google Apps or MailShadowG. I have been using the free Google...
- Blog posts 2008-11-17
- VoIP vulnerabilities in Microsoft Communicator
- Researchers at VoIPshield Labs have pinpointed a wide range of denial-of-service vulnerabilities in Microsoft Communicator, the unified communications that features business-grade instant messaging , voice, and video tools. The flaws, rated "high severity," could cripple VoIP-powered communications on Office Communications Server 2007, Office Communicator and Windows Live Messenger....
- Blog posts 2008-11-17
- Tech czar job: CTO or CIO?
- Is the national "chief technology officer" job promised by Obama going to be more of CTO or CIO job? The consensus seems to be leading towards the latter. The Washington Post quotes Gary Arlen of Arlen Communications: It seems to be much...
- Blog posts 2008-11-17
- New carbon monitoring resources available via the Web
- If one of your near-year-end resolutions is to build out the carbon and greenhouse gas emissions reporting for your company, there are a couple of new resources that have been released in the past week. First off, Sun Microsystems has updated the tools that are available on...
- Blog posts 2008-11-17
- Higher education key to healthy choices
- There is a correlation between an advanced degree and your willingness to respond to health information. This is a link that needs to be broken if America is to become healthier. by Dana Blankenhorn
- Blog posts 2008-11-17
- Boingo to provide WiFi service on Washington State ferries
- Boingo Wireless provides WiFi services all over the world and I have used them on the past in Spain and London. They have been busy adding more wireless networks and today announced that they will be providing the services for the Washington State ferry system. About 1/4 of the employees...
- Blog posts 2008-11-17
- Who will lead Obama-era FCC?
- Monday morning may continue the speculation that Hillary Clinton will be named Secretary of State, but in more technical climes the wagers are on what will happen with the Federal Communications Commission. Ars Technica talked to telecom attorney Andrew Lipman, who expects Obama to move fast. Why? The issues the...
- Blog posts 2008-11-16
- Car crash imminent?
- Wow, the battle over the future of American-based car manufacturers is getting more complex. Now there's a major battle brewing WITHIN the majority Democratic Party, and it's centered on the political clout of the Detroit auto interests. ROAD KILL? There's good evidence that...
- Blog posts 2008-11-16
- Oerlikon Solar sees a shining future despite dark clouds over Wall Street
- Wafer processing equipment and personnel. Courtesy: Oerlikon I blogged about Oerlikon last summer. Now the publicly-traded, Swiss-based company has come out with a new version of its turn-key thin solar panel manufacturing gear. Oerlikon Solar has developed new equipment that promises 50% more...
- Blog posts 2008-11-16
Neighboring Terms
Premier Vendor Content Whitepapers, webcasts & resources from our Power Center Sponsors
- Learn how the latest Intel and industry best practices can improve your IT organization
-
Designed specifically to address the concerns of senior IT managers at organizations with more than 100 employees, the Intel Premier IT Professional Program provides best practices via local and e-Seminars and a members-only Web site.
- View the Intel Premier IT Professional web-site tour >>
-
- Visit the ZDNet Enterprise Mobility Hub sponsored by Verizon Wireless! It has the latest news, commentary, and resources for your mobile and wireless strategy development.
- Video: How to spoof a MAC address
- Five steps to protect mobile devices anywhere, anytime
- Fetch Your E-Mail from Anywhere
- From our sponsors
-
- Push to Talk from Verizon Wireless Choose Verizon Wireless and get a Push to Talk service you can rely on. The only service that comes with the Network. Starting at $699.
-
