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08.15.2007 at 01:52PM PDT, ID: 22765406

	[x] Attachment Details

UDP buffer sizing on Windows

[x]

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7.4

Zone:

Windows Networking

Tags:

udp, windows, buffer

We receive large amounts of UDP multicast data ... our buffers seem to be too small as we lose a few packets quite often (most likely due to scheduling). How do I adjust the size of the OS level UDP receive buffers?

equivalent of ...

sysctl -w kern.ipc.maxsockbuf=xxxxx in BSD

In running a netstat I am seeing

UDP Statistics for IPv4

Datagrams Received = 66550148
No Ports = 64212
Receive Errors = 0
Datagrams Sent = 5810

So perhaps the buffer size is not a problem?

We are also seeing alot of packet address errors (any suggestions on progressing on this?)... netstat-s included

IPv4 Statistics

Packets Received = 135416398
Received Header Errors = 0
Received Address Errors = 65752170
Datagrams Forwarded = 0
Unknown Protocols Received = 0
Received Packets Discarded = 0
Received Packets Delivered = 135416398
Output Requests = 68335246
Routing Discards = 0
Discarded Output Packets = 0
Output Packet No Route = 0
Reassembly Required = 0
Reassembly Successful = 0
Reassembly Failures = 0
Datagrams Successfully Fragmented = 0
Datagrams Failing Fragmentation = 0
Fragments Created = 0

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