On Mon, Apr 17, 2000 at 11:05:13AM +1000, Charlie Brady wrote:
>
> I vaguely remember someone recommending disabling vj compressing for PPP
> connections to optusnet, because of a memory leak or similar problem,
> causing eventual slow to a crawl.
>
> Could someone refresh me with the details please?
If a connection slows to a crawl then sometimes comes good for a while
then slows to a crawl again, It could be due to buggy router/
terminal server that doesn't handle tcp options properly.
You can work around this by turning the options off.
echo 0 >/proc/sys/net/ipv4/tcp_timestamps
echo 0 >/proc/sys/net/ipv4/tcp_sack
echo 0 >/proc/sys/net/ipv4/tcp_window_scaling
I'm not sure if thats the same bug as the vj compression one.
http://marc.theaimsgroup.com/?l=linux-kernel&r=1&w=2
Search for "tcp stalls", Theres lots of hits, some are about
about vj compression, some about tcp options, some about ICMP
unreachable messages being block.
I get hit by a ppp slows to a crawl bug and turning the tcp options off
fixes it for me.
--
chesty
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