From: Salau,Olayemi (Olayemi.Salau@southampton.gov.uk)
Date: Mon Jan 15 2007 - 09:47:17 ART
Hiyah! Guys,
There is this paragraph within IEWBv4 about serialization delay:
"The first case is required when the physical interface clocking differs
from the provisioned rate on the circuit. This is due to the fact that
the router always sends traffic out an interface at the line rate. This
rate is called the serialization delay. For example, a 100Mbps Ethernet
interface will always send traffic at one-hundred million bits per
second, or 1000 bits per millisecond. That means that a 64 byte packet
will take .512 ms to be transmitted, and a 1500 byte packet will take
1.5 ms to be transmitted."
My question is:- If you've got 100Mbps interface and want to send
64bytes, how long will it take. By my own calculation (64x8)/(100x10^6),
this should take 5.12microseconds/0.00000512seconds/0.00512milliseconds
Also 1500 bytes should take (1500x8)/(100x10^6)seconds. ie.
120microseconds/0.00012s/0.12milliseconds
Sometimes, the simple things are those we struggle with ... but any help
will be appreciated
This archive was generated by hypermail 2.1.4 : Thu Feb 08 2007 - 23:46:56 ART