Lost UDP packets
Lost UDP packets
- Subject: Lost UDP packets
- From: Mark Hunt <email@hidden>
- Date: Fri, 24 Sep 2004 21:48:58 +0100
Hi
I have a strange problem with lost broadcast UDP packets.
There is a lot of traffic, around 110 x 1k packets every 1/30th of a
second - over 3000k per second.
There is no other traffic on the (Gigabit) network. The network
consists of the sending station, and multiple receiving stations.
Every so often, a few packets go missing, but different packets are
missed by different machines on the network. For every lost packet,
there's another receiving node that does get it.
Reducing the traffic below 30 packets at 30Hz (900 per second) makes
the system work properly.
It seems that the data is on the wire (how else could it be received by
any station), but is being lost in the IP stack somewhere.
I've tried setting SO_RCVBUF to 224k (biggest I can get) with no
effect. I would expect at least some improvement.
Any ideas? Is there a lower level version of SO_RCVBUF I need to set?
Mark
This message was checked by Mcafee Virusscan Enterprise
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