Date: Wed, 21 Jul 2010 14:21:51 +0800 From: "beezarliu" <beezarliu@yahoo.com.cn> To: "Ryan Stone" <rysto32@gmail.com> Cc: freebsd-net <freebsd-net@freebsd.org>, Jack Vogel <jfvogel@gmail.com> Subject: Re: Re: Re: igb statistics error Message-ID: <201007211421450467696@yahoo.com.cn> References: <201007191659457506137@yahoo.com.cn>, <AANLkTilbicgjvelddGTxnrXh6R2j8Am_3Vho6sgrXQ35@mail.gmail.com>, <201007201030309214485@yahoo.com.cn>, <AANLkTilta5kVYwSvGsclen5TQ-snGFu2zkb1WoxrZWQE@mail.gmail.com>
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It's hard to believe it's switch's problem or unicast issue, because all the 82576/82571 NICs are on the same switch. I even have done a testing. I put one 82571 and one 82576 card in the same machine. And all of the NICs are plugged into a same switch. And they are not configued any IP address, to exclude the unicast issue. And I found the same result. 82576's tpr > 82578's gprc = 82571's tpr = 82571's gprc. So I'm really curious about the TPR. Is the meaning/implementation changed for 82576? Thanks 2010-07-21 beezarliu 发件人： Ryan Stone 发送时间： 2010-07-20 22:41:20 收件人： beezarliu 抄送： freebsd-net; Jack Vogel 主题： Re: Re: igb statistics error The extra packets counted in tpr are packets received by the interface that were not addressed to that interface. The fact that your machine with a 82571 has not seen any such packets is just a coincidence. Whatever switch that machine is connected to has happened not to have flooded unicast packets to an unknown destination in the time that the machine has been up.home | help
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