Subject: Re: how does netstat -p tcp 'find' PMTUD blackholes
To: Jun-ichiro itojun Hagino <itojun@itojun.org>
From: Charlie Allom <charlie@rubberduck.com>
List: current-users
Date: 09/12/2003 22:32:44
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On Fri, Sep 12, 2003 at 07:35:48PM +0900, Jun-ichiro itojun Hagino wrote:
> > Well the topic says it all:
> > % netstat -p tcp
> > <snip>
> > 	        387 PMTUD blackholes detected
> > I found this, but it means little to me..
> > http://www.google.com/search?q=3Dpmtud+netstat+netbsd
> > 	[ 3rd link down ]
>=20
> 	if the node is performing PMTUD (DF bit is 1) and TCP retransmission
> 	timer went off, we try turning PMTUD off (DF bit will be 0 beyond that).

Hi,
	I found the (updated) code in the tree, but thanks for the
	explanation, I was still a little unsure.

	Cheers Itojun,

  C.

--=20
 charlie@rubberduck.com - http://rubberduck.com/~yeled/


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