Re: Losing Big UDP packets through localhost
Re: Losing Big UDP packets through localhost
- Subject: Re: Losing Big UDP packets through localhost
- From: Adi Masputra <email@hidden>
- Date: Wed, 23 May 2007 21:21:13 -0700
On May 23, 2007, at 8:43 PM, John Harte wrote:
Hello,
I can't pass UDP packets > 16kB over localhost using 10.4.9.
I have a server that sends UDP packets up to 32kB in length and a
client that receives them. The server sets its output buffer size
to 32Kb with SO_SNDBUF, the client sets its input buffer size to
64kB with SO_RCVBUF.
It all works when the client and server run on separate machines.
When the client and server are on the same machine the client
receives no packets. Reducing the size to 16kB works.
Is there something I can change to allow the bigger UDP packets
through?
I found nothing obvious in sysctl.
A workaround is to increase the MTU of the loopback interface
high enough to avoid IP fragmentation.
Adi
Thanks
John
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