ietf
[Top] [All Lists]

Re: 802.11b access in Tokyo and Kyoto with IP mobility

2002-07-15 19:13:33
crank your mtu size down. that frequently works in challenging rf 
environments.

joelja

On Sat, 13 Jul 2002, David R. Oran wrote:

I tried it as well, and was getting 80-100% packet loss to just about
everywhere beyond the first-hop router.

Not usable.

--On Saturday, July 13, 2002 7:57 PM +0900 Fred Baker 
<fred(_at_)cisco(_dot_)com>
wrote:

For the record, I'm sitting at this instant in Tokyo Station, and am on
my way from Narita to Yokohama. I am sitting in the green car, and I
accessed the appropriate web page.

I have wonderful 802.11 connectivity, and I have an IP address. Whether
that means I can use the Internet is another question. On the parts of
the track where the connectivity is there, we see ping round trip delays
varying from 380 ms to over four seconds. There are fairly large parts of
the track where the NTT DoCoMo 3G data connectivity appears to simply not
be there - especially when in concrete tubes and ditches, but also on
places with open track.

So I think here the term "seamless", when applied to connectivity,
doesn't really apply.


-- 
-------------------------------------------------------------------------- 
Joel Jaeggli          Academic User Services   
joelja(_at_)darkwing(_dot_)uoregon(_dot_)edu    
--    PGP Key Fingerprint: 1DE9 8FCA 51FB 4195 B42A 9C32 A30D 121E      --
  In Dr. Johnson's famous dictionary patriotism is defined as the last
  resort of the scoundrel.  With all due respect to an enlightened but
  inferior lexicographer I beg to submit that it is the first.
                            -- Ambrose Bierce, "The Devil's Dictionary"