Ethereal-users: Re: [Ethereal-users] Percentage of lost packets

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From: James Knott <james.knott@xxxxxxxxxx>
Date: Mon, 14 Feb 2005 13:00:21 -0500
Michele Amorini wrote:

Dear all,
I'd like to measure the percentage of lost packets/bytes: Do exist in ethereal a command or a procedure to use/folllow? 
Thanks in advance,
To do that, you'd need to know how many packets were sent vs received. Are you counting corrupt packets? You're probably better off looking at the statistics from the source and destination computers. In Linux for example, ifconfig shows the following: 

eth0      Link encap:Ethernet  HWaddr 00:05:5D:F6:04:CE
          inet addr:192.168.1.10  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::205:5dff:fef6:4ce/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:57103 errors:0 dropped:0 overruns:0 frame:0
          TX packets:67137 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:25366963 (24.1 Mb)  TX bytes:6789678 (6.4 Mb)
          Interrupt:10 Base address:0xa800