tutorial - How to set MTU (Maximum Transmission Unit) value on OpenSuSe Linux

In computer networking, the maximum transmission unit (MTU) of a layer of a communications protocol is the size (in bytes) of the largest protocol data unit that the layer can pass onwards.

MTU parameters usually appear in association with a communications interface (NIC, serial port, etc.). Standards (Ethernet, for example) can fix the size of an MTU; or systems (such as point-to-point serial links) may decide MTU at connect time. A higher MTU brings greater efficiency because:
  • each packet carries more user-data
  • protocol overheads, such as headers or underlying per-packet delays, remain fixed,
  • higher efficiency means a slight improvement in bulk protocol throughput

For sending bulk data, the Internet generally works better when using larger packets. Each packet implies a routing decision, when sending a 1 megabyte file, this can either mean around 700 packets when using packets that are as large as possible, or 4000 if using the smallest default.

However, not all parts of the Internet support full 1460 bytes of payload per packet. It is therefore necessary to try and find the largest packet that will 'fit', in order to optimize a connection.

This process is called 'Path MTU Discovery', where MTU stands for 'Maximum Transfer Unit.'

Setting MTU value in OpenSuSe Linux:
Go to Yast → Network Device → Network Settings
In Network Setting dialog dialog box, select "Overview" tab and click on "Edit" button, this will open up your Network card setting dialog box, click on "General" tab to set the MTU for this card as shown in the figure below



To view the updated MTU, type command: ip link list you should see the output similar to ...
1: lo: mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ether 00:19:d1:18:ba:a6 brd ff:ff:ff:ff:ff:ff


Free, facebook, tips, Links, blogging, Downloads, Google, facebookTips, money, news, apps, Social, Media, Website, Tricks, games, Android, software, PIctures, Internet, Security, Web, codes, Review, bloggers, SAMSUNG, Worldwide, Contest, Exitic, Phones, facebookTricks, hacking, London, Olympics, SEO, Youtube, iOS, Adsense, gadgets, iPHONE, widgets, Doodle, twitter, video, Deals, technology, Aircel, Airtel, iPAD, Angry, Birds, BSNL, TechLife, GMAIL, Idea, Microsoft, SmartPhones, Stress, Buster, Windows, Yahoo, Infolinks, Nokia, Scam, Uninor, browsers, Amazon, Euro, CUP, Chat, IDM, JOBS, Modem, Music, Reliance, Results, SSC, Tata, Docomo, bing, freebie, mobile, placements, AIEEE, AlertPay, Chrome, College, Competetive, Exam, Dehradun, Extension, FireFox, GPRS, HTC, IMPACT, Info, MTS, Mark, Zukerberg, Paypal, Promotional, Post, Torrent, UTU, Unlocking, VodaFone, Wall, Paper, apple, books, engineering, iCAR, iTunes, pinterest, rovio, AVG, Admit, Card, Adobe, Affiliate, Marketing, Akhilesh, Amul, Girl, BlackBerry, ChromeBook, Clixsense, Coupon, Digitallife, Discovery, Emoticons, Festival, GATE, GIMP, Income, Tax, International, JSS, JailBreaking, Kindle, Linux, Local, MAX, PAYNE, Mac, Mango, Memory, Speed, Nexus, Online, Shopping, Raakhi, Report, Rising, Stars, Sample, Science, Sony, Syllabus, TabletBooK, Teamviewer, Templates, Dark, Knight, Rises, USA, UPMT, Virgin, Xperia, ZTE, challan, counselling, course, btech, funny, iMOVE, registration

source:http://linuxpoison.blogspot.com/2010/01/135781757115264.html

Labels

Web Search Gmail Google Docs Mobile YouTube Google Maps Google Chrome User interface Tips iGoogle Social Google Reader Traffic Making Devices cpp programming Ads Image Search Google Calendar tips dan trik Google Video Google Translate web programming Picasa Web Albums Blogger Google News Google Earth Yahoo Android Google Talk Google Plus Greasemonkey Security software download info Firefox extensions Google Toolbar Software OneBox Google Apps Google Suggest SEO Traffic tips Book Search API Acquisitions InOut Visualization Web Design Method for Getting Ultimate Traffic Webmasters Google Desktop How to Blogging Music Nostalgia orkut Google Chrome OS Google Contacts Google Notebook SQL programming Google Local Make Money Windows Live GDrive Google Gears April Fools Day Google Analytics Google Co-op visual basic Knowledge java programming Google Checkout Google Instant Google Bookmarks Google Phone Google Trends Web History mp3 download Easter Egg Google Profiles Blog Search Google Buzz Google Services Site Map for Ur Site game download games trick Google Pack Spam cerita hidup Picasa Product's Marketing Universal Search FeedBurner Google Groups Month in review Twitter Traffic AJAX Search Google Dictionary Google Sites Google Update Page Creator Game Google Finance Google Goggles Google Music file download Annoyances Froogle Google Base Google Latitude Google Voice Google Wave Google Health Google Scholar PlusBox SearchMash teknologi unik video download windows Facebook Traffic Social Media Marketing Yahoo Pipes Google Play Google Promos Google TV SketchUp WEB Domain WWW World Wide Service chord Improve Adsence Earning jurnalistik sistem operasi AdWords Traffic App Designing Tips and Tricks WEB Hosting linux How to Get Hosting Linux Kernel WEB Errors Writing Content award business communication ubuntu unik