Re: Flood ping

Justin A. Kolodziej (4wg7kolodzie@vmsb.csd.mu.edu)
Thu, 24 Sep 1998 10:45:12 -0500


George wrote:
>
> Anyone tried flood pinging localhost lately?
>
> With Linux 2.1.122 SMP (2xPentium 133) I get:
>
> --- localhost ping statistics ---
> 38831 packets transmitted, 781 packets received, 97% packet loss
> round-trip min/avg/max = 0.6/103.7/331.4 ms
>
> It seems to start out ok for the first line of packets, then go downhill,
> which is really awful compared to the previous kernels that never
> dropped a packet.[*] There is little load besides rc5des.
>

For me, it always stops at 766 packets received.

--- localhost ping statistics ---
47742 packets transmitted, 766 packets received, 98% packet loss
round-trip min/avg/max = 0.7/227.6/422.3 ms

--- localhost ping statistics ---
8166 packets transmitted, 766 packets received, 90% packet loss
round-trip min/avg/max = 0.7/158.6/285.0 ms

--- localhost ping statistics ---
56121 packets transmitted, 766 packets received, 98% packet loss
round-trip min/avg/max = 0.7/251.0/491.2 ms

I refuse to floodping any other site on my network because that would
surely be considered abuse.

Does it always stop at 781 for you? Maybe this is a _feature_. :-)

Perhaps this is related to that "too many network errors problem" as
ifconfig gives me this:

lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:0.0.0.0 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:262348 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:22036952 dropped:262348 overruns:0
carrier:0 coll:0

eth0 Link encap:Ethernet HWaddr 00:20:78:11:6C:3E
inet addr:XXX.XXX.XXX.XXX Bcast:XXX.XXX.XXX.XXX
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:985 errors:0 dropped:0 overruns:0 frame:0
TX packets:749 errors:21581 dropped:224 overruns:0 carrier:0
coll:0
Interrupt:9 Base address:0xff80

Over 22 million errors? I wish I knew what was going on here... :(
Justin A. Kolodziej

-- 
Easiest Color To Solve On A Rubik's Cube:
        Black.  Simply remove all the little colored stickers on the
cube, and each of side of the cube will now be the original color of
the plastic underneath -- black.  According to the instructions, this
means the puzzle is solved.
                -- Steve Rubenstein

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