mtu的问题

liucznt · 发表于 2005-1-25 17:24:56

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发表一下个人的意见我刚做了个coyote 什么都好就是玩传奇卡看贴子可能修改mtu就好了可是我也不知道怎么改我很菜的没问任何人我就做了cf卡的动手能力还算好吧我看不懂怎么改我相信有无数的兄弟都看不懂各位高手能那出一点时间来写一个详细点的教材就好了写一份就好了我想100字就够了吧各位高手你们看看现在还有多少菜鸟兄弟在求助如何修改mtu啊就是因为这一点改不好有多少兄弟失去了信心改用windows 了请高手们以菜鸟的水平考虑问题象高手们做的努力表示谢意！！！

DreamCat · 发表于 2005-1-25 21:36:11

不知道你用的是什么接入方式。你可以访问这里，然后把结果贴上来：http://www.speedguide.net/analyzer.php或者下载一个软件，http://www.speedguide.net/files/TCPOptimizer.exe ，然后用你的传奇的ip做测试。能得到最优的MTU值。然后再说。

liucznt · 发表于 2005-1-26 16:53:34

谢谢猫猫哥了我用你的s2616做的coyote 版本是2。16的 10兆网通光纤别是什么都好挺快的就是玩传奇的官方卡走2步卡一步我想可能是mtu的问题我现在的mtu是默认的1500 我想可能改为1492可能就好了另外用2000做的就没有什么问题

liucznt · 发表于 2005-1-26 16:55:39

cpu 是c900 内存64兆

liucznt · 发表于 2005-1-27 16:28:39

Main Broadband Reviews Articles Forums Information Login Username: Password: forgot your password? Shortcuts FAQs Glossary SG Network Tools SG Security Scan SG Teams TCP/IP Analyzer TCP/IP Optimizer Home ?TCP/IP Analyzer SpeedGuide.net TCP/IP AnalyzerTCP properties for IP = 218.104.58.27 ()Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)Notes: Read the Analyzer FAQ if the above is not your IP address. TCP options string = 020405b401010402 MTU = 1500 MTU is fully optimized for broadband. MSS = 1460Maximum useful data in each packet = 1460, which equals MSS. Default Receive Window (RWIN) = 65535 RWIN Scaling (RFC1323) = 0 bits Unscaled Receive Window = 65535 Note: Under Windows 9x, if you have RWIN set to any other value, and the Analyzer reports 65535 you might need to install the MS Vtcp386 fix.For optimum performance, consider changing RWIN to a multiple of MSS.Other values for RWIN that might work well with your current MTU/MSS: 513920 (MSS x 44 * scale factor of 8)256960 (MSS x 44 * scale factor of 4)128480 (MSS x 44 * scale factor of 2) 64240 (MSS x 44) bandwidth * delay product (Note this is not a speed test):Your RcvWindow limits you to: 2621.4 kbps (327.675 KBytes/s) @ 200msYour RcvWindow limits you to: 1048.56 kbps (131.07 KBytes/s) @ 500ms MTU Discovery (RFC1191) = ON Time to live left = 112 hopsTTL value is ok. Timestamps (RFC1323) = OFF Selective Acknowledgements (RFC2018) = ON IP type of service field (RFC1349) = 00000000 18994504 connections tested since 03.10.2001.

liucznt · 发表于 2005-1-27 16:32:30

Pinging [63.217.30.70] with 40 bytes ->bytes=40 time=219ms TTL=50Pinging [63.217.30.70] with 750 bytes ->bytes=750 time=235ms TTL=50Pinging [63.217.30.70] with 1125 bytes ->bytes=1125 time=234ms TTL=50Pinging [63.217.30.70] with 1312 bytes ->bytes=1312 time=250ms TTL=50Pinging [63.217.30.70] with 1406 bytes ->bytes=1406 time=234ms TTL=50Pinging [63.217.30.70] with 1453 bytes ->bytes=1453 time=250ms TTL=50Pinging [63.217.30.70] with 1476 bytes -> ..fragmentedPinging [63.217.30.70] with 1465 bytes ->Request Timed OutPinging [63.217.30.70] with 1465 bytes ->bytes=1465 time=235ms TTL=50Pinging [63.217.30.70] with 1470 bytes ->bytes=1470 time=250ms TTL=50Pinging [63.217.30.70] with 1473 bytes -> ..fragmentedPinging [63.217.30.70] with 1472 bytes ->bytes=1472 time=218ms TTL=50The largest possible non-fragmented packet is 1472 (1500 - 28 ICMP & IP headers).You can set your MTU to 1500

DreamCat · 发表于 2005-1-27 16:47:22

QUOTE
MTU = 1500 MTU is fully optimized for broadband.
MTU正常啊，不是MTU的问题。

DreamCat · 发表于 2005-1-27 16:49:52

63.217.30.70 是哪儿的地址啊？我检测到的：

CODE
IP ： 63.217.30.70地址：美国 CAIS网络
我的测试：

QUOTE
Pinging 63.217.30.70 with 32 bytes of data:Request timed out.Reply from 63.217.30.70: bytes=32 time=521ms TTL=48Request timed out.Reply from 63.217.30.70: bytes=32 time=511ms TTL=48Ping statistics for 63.217.30.70: Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),Approximate round trip times in milli-seconds: Minimum = 511ms, Maximum = 521ms, Average = 258ms

liucznt · 发表于 2005-1-27 17:55:25

我的ip 是218.104.58.27 网通的

liucznt · 发表于 2005-1-27 17:55:27

我的ip 是218.104.58.27 网通的

liucznt · 发表于 2005-1-27 19:03:43

Web Administrator - Version 4.0 Main Menu Welcome to Coyote Linux Web Administrator Information LAN Configuration Internet Configuration DHCP Configuration Administrative Configs Port Forwarding Firewall Configuration QOS Configurations System Password Configuration Files Diagnostic Tools Backup Now Reboot General Information Coyote Linux - Version 2.16 Host Name coyote Domain localdomain Network Status - Internet Status UP Internet Type Ethernet (Static IP) External IP Address 218.104.58.27 Netmask 255.255.255.240 Gateway 218.104.58.17 [ Gateway Test ] Network Status - Local Network Status UP Local IP Address 192.168.0.1 Netmask 255.255.255.0 Broadcast 192.168.0.255 DNS Information Primary Nameserver 218.104.56.106 [ DNS Test ] Secondary Nameserver 202.102.3.141 Services DNS Cache Enabled [ Reload ] DHCP Server Disabled SSH Service Enabled (port 22) Web Administrator Enabled (port 8180) System Information Kernel Version 2.4.25 Machine i686 unknown Current Date and Time Tue Jan 11 18:55:22 EST 2005 Uptime 6:55pm up 8 days, 18:35, load average: 0.00, 0.00, 0.00 Load Average Last 1 Minute 0.00 Last 5 minutes 0.00 Last 15 minutes 0.00 Memory Usage Total 63120 (100%) Used 7560 (11%) Free 55560 (89%) 麻烦看一下是否正常

liucznt · 发表于 2005-1-27 19:12:37

金山的游戏更新的也特慢

DreamCat · 发表于 2005-1-27 19:32:10

你得测试到服务器的连接情况，最好做对比，用你原来的路由看看卡不卡了，最好是用traceroute 看看到底问题出在哪儿。

DreamCat · 发表于 2005-1-27 19:34:11

QUOTE (liucznt @ Jan 26 2005, 04:53 PM)
谢谢猫猫哥了我用你的s2616做的coyote 版本是2。16的 10兆网通光纤别是什么都好挺快的就是玩传奇的官方卡走2步卡一步我想可能是mtu的问题我现在的mtu是默认的1500 我想可能改为1492可能就好了另外用2000做的就没有什么问题
你那里用1492不对。还得是 1500。

liucznt · 发表于 2005-1-27 21:45:27

用win2000的net 做的就没有问题我也在找问题的原因我想这个问题不是小问题

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