[Click] Ping Question

[Eddie Kohler]

Hi Ashwin,

Sorry for the delay...

In the elements/local directory (CVS checkout only), you'll see a couple of 
ping-like elements that might still work, including TCPAck and TCPReflector.

There are also a handful of other 'mirror' elements including IPMirror and 
EtherMirror.

Of these elements, only ICMPPingSource remembers round-trip times.  If you want 
to collect one RTT sample per ping, ICMPPingSource's handlers won't help you 
that much; they report only summary information.  You'd need to look at its 
per-ping printouts, which (in the kerneL) you can find in 'dmesg' or 
/var/log/messages.  If you felt like adding a handler to report, say, the last 
10 RTT samples, we'd love to see it!

Also, ICMPPingSource doesn't ping a *list* of nodes.  That should be pretty 
simple to add.

Eddie



Ashwin Chandra wrote:
> Two questions for you guys:
> 1. are there any application layer ping elements that anyone has written besides the already known ICMPPingSource and ICMPPingResponder?
> 
> 2. How can i use the aforementioned elements to just simply ping a list of nodes and retrieve the RTT times using the handler and collect them in a file? I've been trying and can't seem to get it right.
> 
> 
> Thanks for any help,
> Ash
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