Describe the following switching
methods?
Store and forward ?
•The
switch buffer the received frames completely.
•Then
performs a check sum on entire frame before forwarding to destination through
relevant port.
Latency is highest.
Best
error detection
Cut through ?
•The
switch reads only up to the destination hardware address of the frame before
forward it.
•So,
incoming frames forwarded as soon as to the destination and destination has
been read.
•No
error checking.
Least latency
Poor error detection
Fragment
free ? not popular question
•Store
and forward + cut through
•Checks
first 64 bytes of the frame where addressing information is stored.
all are key word you must write into question like this.
lecture conducted by laahiru fernando
contact : hewagefernando@yahoo.com / laahirufernando1@writeme.com
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