Switching via memory - network layer and routing , Computer Networking

Switching  via memory

Traditional  computers with switching  between  input and output  being  doen under  direct  control  of the CPU input and output  ports  functioned as traditional I/O devices in a traditional  operating systems. Aninput port with an arriving  packet first signalled the routing  processor. The packet  was then copied  from the  input   port into processor  memory. The routing  processor  then extract the destination address from the heard looked  up the appropriate output port in  the forwarding table and the packet to the output  buffers. Note  that if memory  bandwidth  is B packets per second  can be written into  or read from memory them the overall forwarding throughput ( the  total  rate at which  packets are transferred   from input  ports to output  ports ) must be  less than B/2.

Posted Date: 3/16/2013 5:41:46 AM | Location : United States







Related Discussions:- Switching via memory - network layer and routing , Assignment Help, Ask Question on Switching via memory - network layer and routing , Get Answer, Expert's Help, Switching via memory - network layer and routing Discussions

Write discussion on Switching via memory - network layer and routing
Your posts are moderated
Related Questions
Receive Window This  field  defines the size  of the  window in bytes  that the  other party  must  maintain. Note  that the  length  of this  field 16 bits  which  means

importance of mail server ,proxy server ,modem ,intranet and web site

What are Triggers and Rules? Triggers are special user defined actions generally in the form of stored processes that are automatically invoked by the server based on data rel

Q. What do you mean by OpenMP? OpenMP is a compiler directive based standard developed in late 1990s together by a group of main computer software and hardware vendors. It is p

Assume that the clock-driven scheme for generating starting sequence numbers is used with a 16-bit wide clock counter (that is, sequence numbers range from 0 to 2^16).  The clock t

show ipx servers is the command that shows the SAP table

Address is a full unique identifier. Connectionless delivery needs address on every packet. Connection-oriented delivery may use a short hand that shows the connection rather th

Which of the following protocols are used for logical network addressing? Ans) Internet Protocol - IP gives routing and a one interface to the upper layers. No upper layer proto

What is virtual channel? Virtual channel is normally a connection from single source to one destination, although multicast connections are also allowed. The other name for vir

#question.what can we do with a spider when it red?.