Help with reading strace

Dan Track dan.track at gmail.com
Wed Mar 22 13:33:05 UTC 2006


On 3/22/06, Andy Green <andy at warmcat.com> wrote:
> Dan Track wrote:
>
> > When pinging the server (10.10.8.24) I get lots of dots ( about 30)
> > appear on the screen. I've never used the flood option before so I'm
> > not sure what to expect. Any ideas?
>
> Aha... when ping sends out a ping request in -f mode it prints a ., when
> it gets the ping response it backspaces it.  Therefore a happy network
> shows a single flickering dot.  So you learned that either that server
> is unable to keep up with network traffic or you have some other problem
> causing packet loss between the two boxes.
>
> Examine the cable, switches and hubs, and also if possible the
> negotiated mode at the Ethernet PHY, using, eg
>
> mii-tool eth0
>
> -Andy

Hi

Thanks for the info. I'll show my current network:

server A (neptune)-firewall-server B(opal)

If I ping from neptune to opal I get dots appearing on the "ping -f"
command. If I ping from opal to neptuen I never get any dots appear.

I've checked what you asked and everything is set to full duplex and 100BaseT

Any idea what could explain this?

Thanks again for your help.

Dan




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