Wireshark mailing list archives

Fw: Re: Metro/JAXWS and network packets...


From: Tony Anecito <adanecito () yahoo com>
Date: Thu, 15 Oct 2009 12:03:53 -0700 (PDT)

Hi Wireshark group.

I narrowed down the redundant packets last night/this morning. I have notified the Sun group about the issue and am 
still looking at it closer.

Thanks for the help this has been a huge issue for me and now for Sun perhaps.

Best Regards,
-Tony

--- On Thu, 10/15/09, Tony Anecito <adanecito () yahoo com> wrote:

From: Tony Anecito <adanecito () yahoo com>
Subject: Re: Metro/JAXWS and network packets...
To: users () metro dev java net
Cc: "JWSDP Dev" <dev () jax-ws dev java net>
Date: Thursday, October 15, 2009, 11:18 AM
Hi All,

I created a simple java program that created a URL object
and sent a http request to a Tomcat server for a small less
than 1500 byte file and two packets were set to/from the
Tomcat Server.
When I send the same request via FireFox only one packet is
sent/recieved.
So this is not a Metro issue but a core issue with the jre
and TCP.

This issue may only be with data less than 1500 bytes and
TCP.

Regards,
-Tony

--- On Thu, 10/15/09, Tony Anecito <adanecito () yahoo com>
wrote:

From: Tony Anecito <adanecito () yahoo com>
Subject: Metro/JAXWS and network packets...
To: "Metro" <users () metro dev java net>
Cc: "JWSDP Dev" <dev () jax-ws dev java net>
Date: Thursday, October 15, 2009, 1:36 AM
I noticed if I send a request via
Metro using a small object that is less than 1460
bytes
(Maximm Segment Size or MTU Maximum Transport Unit
size) the
data gets sent/received in two packets. If I use
Firefox and
request a small html file I only get one packet.

Any idea why this is happening? It seems to double
the
number of packets for communication. The data is not
duplicated in the two packets but instead is
fragmented.

I am using a Java Client using jre 1.6.0_16 and the
Tomcat
Server hosting the web service is also using jdk
1.6.0_16.
All are Windows based OS.

Regards,
-Tony


      


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