Hello, Describe Fragment Free Switching Mode?
ambrose 21-April-2009 03:30:31 AM

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you can also visit this link
www.intel.com/support/express/switches/sb/CS-014410.htm
Posted by waqasahmad


you can also visit this link
www.intel.com/support/express/switches/sb/CS-014410.htm
Posted by waqasahmad


Follow the link
www.intel.com/support/express/switches/sb/CS-014410.htm
Posted by HamidAliKhan


Please visit:

www.intel.com/support/express/switches/sb/CS-014410.htm
Posted by sagitraz


Fragment-Free mode is a switching method that picks a compromise between the reliability of Store and Forward and the speed of Cut Through. The theory here is that frames that are damaged (usually by collisions) are often shorter than the minimum valid Ethernet frame size of 64 bytes. A fragment-Free buffer the first 64 bytes of each frame, updates the source MAC and port if necessary, reads the destination MAC, and forwards the frame. If the frame is less than 64 bytes, it is discarded. Frames that are smaller than 64 bytes are called runts; Fragment-Free switching is sometimes called "runtless" switching for this reason. Because the switch only ever buffers 64 bytes of each frame, Fragment Free is a faster mode than Store and Forward, but there still exists a risk of forwarding bad frames, so the previously described mechanisms to change to Store and Forward if excessive bad CRCs are received are often implemented as well.
Posted by nicholsonfenix



Posted: 22-April-2009 12:53:39 AM By: nicholsonfenix

Fragment-Free mode is a switching method that picks a compromise between the reliability of Store and Forward and the speed of Cut Through. The theory here is that frames that are damaged (usually by collisions) are often shorter than the minimum valid Ethernet frame size of 64 bytes. A fragment-Free buffer the first 64 bytes of each frame, updates the source MAC and port if necessary, reads the destination MAC, and forwards the frame. If the frame is less than 64 bytes, it is discarded. Frames that are smaller than 64 bytes are called runts; Fragment-Free switching is sometimes called "runtless" switching for this reason. Because the switch only ever buffers 64 bytes of each frame, Fragment Free is a faster mode than Store and Forward, but there still exists a risk of forwarding bad frames, so the previously described mechanisms to change to Store and Forward if excessive bad CRCs are received are often implemented as well.

Posted: 22-April-2009 12:16:02 PM By: sagitraz

Please visit:

www.intel.com/support/express/switches/sb/CS-014410.htm

Posted: 24-April-2009 01:15:51 AM By: HamidAliKhan

Follow the link
www.intel.com/support/express/switches/sb/CS-014410.htm

Posted: 27-April-2009 01:23:59 AM By: waqasahmad

you can also visit this link
www.intel.com/support/express/switches/sb/CS-014410.htm

Posted: 27-April-2009 01:46:30 AM By: waqasahmad

you can also visit this link
www.intel.com/support/express/switches/sb/CS-014410.htm