FACTOID # 23: In Australia, there's plenty of open road. Which is just as well, because you wouldn't want to park your car.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

FACTS & STATISTICS    Simple view

  1. Select countries to view: (hold down Control key and click to select several)

     

     

    Compare:

     

     

  1. Select fact or statistic: (* = graphable)

     

     

     

  2. (OPTIONAL) Compare to statistic: (both need to be graphable)

     

     

     

  3. View result as:

     

       
(OR) SEARCH ALL encyclopedia, stats & forums:   

Encyclopedia > Cut through

In computer networking, cut through is a type of network switch (or router) architecture for packet switching systems. Wherein the switch starts forwarding that frame (or packet) before the whole frame has been received, normally as soon as the destination address is processed. This technique reduces latency through the switch.


In packet switched networks such as Ethernet, cut-through switching can only be used where the outgoing interface is equal in speed to, or slower than the incoming interface.


Cut through routing in IP networks presents some problems since the IP checksum in the packet is supposed to be checked by every router in the path. Since the checksum of a packet cannot be checked until the entire packet has been received, the cut-through router is at risk of forwarding a packet with an incorrect checksum. Provided that there are other routers in the path which are not doing cut-through routing, or that the end system is correctly verifying checksums, this should only result in the occasional loss of a small amount of traffic capacity.


Cut through routing was one of the important features of ATM networks since the edge routers of the ATM network were able to use cell switching through the core of the network with low latency at all points. With higher speed links, this has become less of a problem since packet latency has become much smaller.


  Results from FactBites:
 
Hand Cut Through Dovetails - Articles at Woodcraft (939 words)
Cutting dovetails by hand is often more time effective than setting up and cutting dovetails by machine, unless you've got more than half a dozen drawers or other pieces to do.
Scribe a line on all four faces of the board that is to have the pins cut on it; this line extends across the end of the board.
When you are first learning to cut dovetails, it is good practice to make the widest part of the pin equal to the thickness of the stock.
Machine Cut Through Dovetails - Printable (2139 words)
After the tablesaw cuts are made, the waste is removed with a 1 inch wide blade on the bandsaw using the saw's regular rip fence as a guide.The narrow bandsaw eblade slides into the kerfs left by the tablesaw blade and cleans up the sharp corners between tails and pins almost perfectly.
I cut two sets: One set is drilled for the bolts that mount the blocks to the jig board (an extra block is cut and drilled as the end block).
Cut only the marked pin board (keeping its inside face against the jig), and follow the sequence of taking two cuts, flipping board between cuts, removing a spacer block and cutting again until you've removed all three spacer blocks.
  More results at FactBites »


 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments
Please enter the 5-letter protection code

Want to know more?
Search encyclopedia, statistics and forums:

 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms.