<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hi All, </div><div><br></div>The NICs we're using are Broadcom Corporation NetXtreme II BCM57711 10-Gigabit PCIe They're a Dual Port SFP+ card. Connected to a Dell PowerConnect 8024F.<div><br></div><div>Currently we're using the open source driver bnx2x as provided in the kernel, there doesn't appear to be any dropped packets on the clients or servers.</div><div><br></div><div>Could it be that the Lock callback timer threshold is too low? Im uncertain if there is a way of altering this threshold.</div><div><br></div><div><font class="Apple-style-span" face="Tahoma, Verdana, Helvetica, Arial" size="3"><span class="Apple-style-span" style="font-size: 13px;"><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="font-size: medium;">Could there be some sort of kernel buffer or limit set too low on the clients/servers?</span></font></span></font></div><div><font class="Apple-style-span" face="Tahoma, Verdana, Helvetica, Arial" size="3"><span class="Apple-style-span" style="font-size: 13px;"><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="font-size: medium;"><br></span></font></span></font></div><div><font class="Apple-style-span" face="Tahoma, Verdana, Helvetica, Arial" size="3"><span class="Apple-style-span" style="font-size: 13px;"><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="font-size: medium;">Regards,</span></font></span></font></div><div><font class="Apple-style-span" face="Tahoma, Verdana, Helvetica, Arial" size="3"><span class="Apple-style-span" style="font-size: 13px;"><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="font-size: medium;"><br></span></font></span></font></div><div><div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="font-family: Helvetica; "><div><span class="Apple-style-span" style="font-family: Tahoma, Verdana, Helvetica, Arial; font-size: 13px; ">Peter Kitchener<br>Systems Administrator<br>Capital Markets CRC Limited (CMCRC)<br>Telephone: +61 2 8088 4223<br>Fax: +61 2 8088 4201<br><font color="#0000ff"><a href="http://www.cmcrc.com/" target="_blank">www.cmcrc.com</a></font> <br><br> <br></span></div></span><span></span></span><br class="Apple-interchange-newline"><span><img height="87" width="253" id="bd197a2b-cd05-4850-b297-b54a422bf216" apple-width="yes" apple-height="yes" src="cid:68C0C3AE-66F9-4BC4-A9DF-522D47B4E092@staff.cmcrc.com"></span><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="font-family: Tahoma, Verdana, Helvetica, Arial; font-size: 13px; "><br class="Apple-interchange-newline"><br>Capital Markets CRC Ltd - Confidential Communication<br>The information contained in this e-mail is confidential. 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