lkml.org 
[lkml]   [1999]   [Apr]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subjectshaper problem?

Hi!

I found some problem on all boxes I tested (with kernel from 2.1.132 to
2.2.6 -- I didn't try 2.2.7 yet) with shaper.

When I insmod shaper and attach it to any ethernet device (doesn't
metter which one) and send ping with large size (for example:
ping target -s 64000) the linux box responds to any other packet with
about 6 to 20 seconds delay. Doesn't metter that I do send only 2 64k
pings (semms to be some defragmentation problem, 'cos it appeared only if
I enabled masquaradinf and defragmentation). I only need to send few such
packets and whole box seems to be faar away. When I send normal size pings
it responds after 6 to 20 seconds or later.

After that, all tcp connections that were established before are working
OK. All new one needs to wait about 6 to 20 seconsds to be established. If
I'll restart ipchains rules (ipchains -F) everything starts to work well
(until I'll try to send large ping again ;).

This computer was set up as a masquarading box.

I'm not shure whethet it is known, but I reproduced it several time (on
one computer with 6 ethernet devices) on few different kernels. I did it
on the ethernet, so I'm not shure whethet it works for a long distans.

--
___________________________________________________________________________
M.C.Mar An NT server can be run by an idiot, and usually is. emsi@it.pl
"If you can't make it good, make it LOOK good." - Bill Gates
Moze to nie miejsce, ale tak np. programy M$ to swoiste pomniki glupoty.



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:51    [W:0.246 / U:1.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site