[atlas] Flood-ping to measure packet loss?
Florian Streibelt florian at net.t-labs.tu-berlin.de
Wed Jul 18 18:33:47 CEST 2012
Hi, Am Mi, 18.07.12 um 17:49:35 Uhr schrieb Antony Antony <antony at ripe.net>: > > On Wed, Jul 18, 2012 at 11:48:08AM +0000, Bartsch, Rene wrote: > > Hi, > > > > I've just started hosting a probe and I'm new to the list, so a "Hello" to all! :) > > > > Does the probe send simple pings or does it send flood pings (e.g. ping -f -c 1000 <destination>) for detection of packet loss? > > If you would do a flood ping it is more likely you will observe congestion in the LAN when the probe is connected to a slow uplink. More interesting for WAN measurements is the loss under 'normal' conditions. Consider the probe beeing installed at a residential DSL or cable line, where one of the probes I host ist located. If I start a huge download I will have congestion on my upstream because of the ACKs I send. A probe would now observe huge loss when doing a flood ping. Florian