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List:       user-mode-linux-user
Subject:    [uml-user] Latency Issue
From:       Rus Foster <rghf () fsck ! me ! uk>
Date:       2003-11-29 16:49:17
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Hi All,
I'm seeing a weird error when trying to ping UML's remotly. The first ping
is high and the rest are then normal latency

e.g.

bash-2.05a$ ping rt.jvds.com
PING rt.jvds.com (216.74.75.208): 56 data bytes
64 bytes from 216.74.75.208: icmp_seq=0 ttl=47 time=489.0 ms
64 bytes from 216.74.75.208: icmp_seq=1 ttl=47 time=175.1 ms
64 bytes from 216.74.75.208: icmp_seq=2 ttl=47 time=155.5 ms
64 bytes from 216.74.75.208: icmp_seq=3 ttl=47 time=156.7 ms
64 bytes from 216.74.75.208: icmp_seq=4 ttl=47 time=163.7 ms

However I'm having trouble working out why. I'm using the command line

./linux ubd0=debianxfs.img eth0=tuntap,,,192.168.0.1 umid=rt.jvds.com
devfs=mount root=/dev/ubd/0 ubd1=swap mem=128M $1 ubd2=foo

Any ideas? I'm guessing its something in the arp table inside the UML but
not sure


Rus

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