Netesnel is een betrekkelijke zaak. wat meet je, dat gaf men hierboven al aan.
Dit is wel een leuke tekst wat dat betreft.
HP steekt met kop en schouders boven de 3com uit.. of toch niet...
""""3com 3300 can do cut-through forwarding, resulting in latency for about
8 us. However, it's measured throughput is only 1.4 Gbps for 1.5 KB
packets and 0.9 Gbps for 64 B packets. (
www.tolly.com, doc. no. 8270)
Therefore, it doesn't allow full duplex wire speed communication on
all 24 ports at the same time (that would require throughput of 2.4 Gbps).
On the other side, HP ProCurve 2424 has got 3.2 Gbps internal
backplane and can handle simultaneous full load on all ports
gracefully for all packet sizes. (results of tests carried out by HP).
Plus there is a nice reserve for stacking two of these switches when
expanding our Beowulf in future. But it can do only store-and-forward
switching. The latency for 64B packets is still only around 9 us, but
it of course grows with increasing size of the packets, as all the
data must be received before being sent again. Therefore for 1.5 KB
packets it exhibits almost 140 us (FIFO) latency.
""""
zo zie je maar...
meten is weten en liegen is datgene meten wat je wilt bewijzen.
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