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