2010-08-24 06:06:17

by Han

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Subject: ping slowness over bluetooth PAN

Hi,

I noticed that ping is much more slow over bluetooth PAN connection
than a typical WiFI LAN:

especially the first packet: (Ubuntu 9.10)

PAN:

64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=365 ms

WLAN:

64 bytes from Amelie (192.168.1.71): icmp_seq=1 ttl=128 time=3.53 ms

The WLAN case is 100 times faster on the first ping! Is this
expected? (I don't think this is due to the absolute bandwidth). Any
insight is appreciated.

Han