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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Packet Loss
Isn't there something in RFC 1149 or RFC 2549 about this? Maybe another update to these RFC will be required. K Reference: http://www.valkaryn.net/rfc/1149.txt http://www.valkaryn.net/rfc/2549.txt > -----Original Message----- > From: Tony Rall [mailto:[email protected]] > Sent: Thursday, December 14, 2000 9:50 AM > To: [email protected] > Subject: Re: Packet Loss > > > > > > I'll speculate that it occurs when packets destined for a > destination do > > not get there. Most people see it via dropped ping packets.. > > What ping really tells you is that either the packets from A > to B are being > lost or those from B to A are being lost. From the > information that ping > presents there is no way to know which direction (and the > routing may well > be asymmetric) is choking, nor if the problem is at one of > the end points. > > While I really like to use pings (with at least 100 samples) > for testing > round trip packet loss, there are situations where it will > give incorrect > results. If the packet loss is data, packet size, or > protocol dependent, > ping probably won't tell you about the performance to be > expected for the > application that you're really interested in. On top of > that, some systems > will filter or throttle ICMP - this really distorts the results. > > Tony Rall > >
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