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Wireshark-users: Re: [Wireshark-users] Bandwith consumption

From: Salvatore Frandina <salvatore.frandina@xxxxxxxxx>
Date: Tue, 30 Mar 2010 11:17:27 +0300
Hi Martin,

I'm testing a videoconferencing system and I would like to estimate the maximum number of active conference rooms at the same time. My question is about the maximum number of conference room that Fast Ethernet connection can supply?

I know that Wireshark calculates the bandwidth at IP level and I would know how much is different from the bandwidth at ethernet level.

From here I know the fragmentation and reassembly of IP packets (IP header 20 byte Ethernet header 18 byte MTU 1500 byte)

For example if all IP packets are of the maximum length about 64 kByte, they are fragmented in 45 ethernet packets of 1500 byte. The overhead is low

I expect little difference between the two bandwidth.

Thank you
Salvatore Frandina
mail: salvatore.frandina@xxxxxxxxx