Date: Fri, 10 Nov 2000 17:50:06 +0800 From: "wu haijun" <haggai.wu@huawei.com> To: <freebsd-net@freebsd.org> Subject: A question for PPPoE 's MTU: Message-ID: <001f01c04afb$9b6e07a0$1b22690a@huawei.com.cn>
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[-- Attachment #1 --] Hi: The MTU of PPPoE is 1492 Bytes. But if the PPPoE Server receives IP packets from the WAN and the packets's will be always 1514 Bytes,so the Server must fragment the Packets to fit in the PPPoE packets ,and this will degrade the performance of the Server. Why not suggest that PPPoE header didn't be included in the MTU calculation,just like VLAN encapsulation? Regards Wu Haijun Huawei Tech. Corp. LTD in CHINA Senior Firmware Engineer [-- Attachment #2 --] <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=gb2312" http-equiv=Content-Type> <META content="MSHTML 5.00.2614.3500" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT size=2> <DIV><FONT size=2>Hi:</FONT></DIV> <DIV> </DIV> <DIV><FONT size=2>The MTU of PPPoE is 1492 Bytes. But if the PPPoE Server receives IP packets from the WAN and the packets's will be always 1514 Bytes,so the Server must fragment the Packets to fit in the PPPoE packets ,and this will degrade the performance of the Server.</FONT></DIV> <DIV>Why not suggest that PPPoE header didn't be included in the MTU calculation,just like VLAN encapsulation? </DIV> <DIV> </DIV> <DIV>Regards</DIV> <DIV> </DIV> <DIV>Wu Haijun</DIV> <DIV>Huawei Tech. Corp. LTD in CHINA</DIV> <DIV>Senior Firmware Engineer<BR><BR></DIV></FONT></DIV></BODY></HTML>help
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