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Date:      Mon, 4 Feb 2002 12:01:59 -0500
From:      Steve Shorter <steve@nomad.lets.net>
To:        freebsd-net@freebsd.org
Subject:   netstat -s shows udp packets dropped ?
Message-ID:  <20020204120158.A1583@nomad.lets.net>

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Howdy!

	The following is from netstat -s on a busy NFS client (udp mounts)
I was wondering about the line

	172764 dropped due to full socket buffers

	in the "udp" section. Will increasing

kern.ipc.maxsockbuf: 262144

	help with this?


	Also will increasing 

net.inet.udp.recvspace: 41600

	help with udp in general?

	thanx - steve

netstat -s

udp:
	907568372 datagrams received
	0 with incomplete header
	2 with bad data length field
	1 with bad checksum
	0 with no checksum
	1852 dropped due to no socket
	9 broadcast/multicast datagrams dropped due to no socket
	172764 dropped due to full socket buffers
	0 not for hashed pcb
	907393744 delivered
	907648708 datagrams output
ip:
	2433057204 total packets received
	0 bad header checksums
	3 with size smaller than minimum
	0 with data size < data length
	0 with ip length > max ip packet size
	0 with header length < data size
	0 with data length < header length
	0 with bad options
	0 with incorrect version number
	531096217 fragments received
	0 fragments dropped (dup or out of space)
	1304 fragments dropped after timeout
	110782591 packets reassembled ok
	2012140956 packets for this host
	571538 packets for unknown/unsupported protocol
	0 packets forwarded (0 packets fast forwarded)
	0 packets not forwardable
	0 packets received for unknown multicast group
	0 redirects sent
	2061766141 packets sent from this host
	0 packets sent with fabricated ip header
	0 output packets dropped due to no bufs, etc.
	0 output packets discarded due to no route
	7447090 output datagrams fragmented
	36843330 fragments created
	0 datagrams that can't be fragmented
	0 tunneling packets that can't find gif
	0 datagrams with bad address in header


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