※ 引述《kinoko (我可以认识你吗?)》之铭言： : ※ 引述《JkFive (jkfive)》之铭言： : : 想问一下 : : 使用学网的是不是这几天MSN断线的频率很高阿 : : 就刚刚还有昨天下午都有发生MSN断线 : : 可是其他网路都还连的上的状况 : : 就MSN不能上而已 : : 这种问题要去跟资讯中心反应吗 : : 传东西传到一半断线真的超__的="= : : 听说我刚刚上厕所前好像又有断一次... : 根据不负责任消息指出 : 10月29日 23:00 至 10月30日凌晨1:00 教育部科技大楼机房维修 : 全台学术网路都会受到影响 : 所以并不是幻觉....... 测试网路状况 开始-->执行-->输入cmd (or 开始->程式集->附属应用程式->命令提示字元) 一开始可能会显示这样 C:\Documents and Settings\Administrator>(以下这一句我简写) 输入这一句 (168.95.1.1 是中华电信DNS 这个不可能挂掉) C:\>tracert 168.95.1.1 之後按下ENTER 让他跑 之後它会从你电脑开始往外跑 经过每一个节点都会回报 over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 203.64.XXX.XXX 2 <1 ms <1 ms * Nuu-NonLegal-address [203.64.173.225] 3 1 ms 1 ms 1 ms 203.64.173.211 4 1 ms 1 ms 1 ms 203.68.12.81 5 * * * Request timed out. 6 3 ms 3 ms 3 ms hc-c12r1.router.hinet.net [211.22.38.90] 7 3 ms 3 ms 3 ms tp-crs11.router.hinet.net [220.128.1.90] 8 3 ms 3 ms 3 ms tp-s2-c12r2.router.hinet.net [220.128.1.217] 9 3 ms 3 ms 3 ms 210.59.204.189 10 3 ms 3 ms 3 ms dns.hinet.net [168.95.1.1] Trace complete. 出现Request timed out 就代表这边断 *************测试封包会不会掉及连线会不会LAG************* 输入以下这句 C:\>ping 168.95.1.1 -n 100 (连到中华电信DNS 测试100次) ---结果如下--- Pinging 168.95.1.1 with 32 bytes of data: Reply from 168.95.1.1: bytes=32 time=3ms TTL=243 Reply from 168.95.1.1: bytes=32 time=3ms TTL=243 Reply from 168.95.1.1: bytes=32 time=3ms TTL=243 ...(略) Ping statistics for 168.95.1.1: Packets: Sent = 100, Received = 98, Lost = 2 (2% loss), Approximate round trip times in milli-seconds: Minimum = 3ms, Maximum = 4ms, Average = 3ms ------ 如果封包有掉(loss)~~那就代表断线~~ 封包掉的越多越可能断 封包掉得少 电脑会自动重送(这样会LAG) Packets: Sent = 100, Received = 98, Lost = 2 (2% loss), 送出100次，收到98次回应，遗失2个封包 Minimum = 3ms, Maximum = 4ms, Average = 3ms 最低回应时间3毫秒、最高回应时间4毫秒、平均回应时间3毫秒 回应时间越高 你就越LAG(当然也要看地区远近) 当然也可以改成其它句子测试 ((一些其他参数介绍)) C:\>ping 168.95.1.1 -t (连到中华电信DNS 无限测试直到按 ctrl + C 停止) C:\>ping 168.95.1.1 -n 100 -l 1024 (测试100次 封包1024bytes) 测试连到其他地区 C:\>ping 61.64.127.1 -n 100 (So-net DNS) C:\>ping 139.175.55.244 -n 100 (Seednet DNS) C:\>ping 203.64.173.48 -n 100 (NUU DNS)** C:\>ping 203.64.173.49 -n 100 (NUU DNS)** ----------------以下是测试结果(可以不用看)------------- 测试到SO-net 10次 C:\>ping 61.64.127.1 -n 10 Pinging 61.64.127.1 with 32 bytes of data: Reply from 61.64.127.1: bytes=32 time=4ms TTL=244 Reply from 61.64.127.1: bytes=32 time=5ms TTL=244 Reply from 61.64.127.1: bytes=32 time=4ms TTL=244 Reply from 61.64.127.1: bytes=32 time=4ms TTL=244 ...(略) Ping statistics for 61.64.127.1: Packets: Sent = 10, Received = 10, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 4ms, Maximum = 5ms, Average = 4ms **测试到Seednet 10次** C:\>ping 139.175.55.244 -n 10 Pinging 139.175.55.244 with 32 bytes of data: Reply from 139.175.55.244: bytes=32 time=155ms TTL=243 Reply from 139.175.55.244: bytes=32 time=155ms TTL=243 ...(略) Ping statistics for 139.175.55.244: Packets: Sent = 10, Received = 10, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 152ms, Maximum = 157ms, Average = 154ms 回应时间好长 **测试到NUU DNS 10次 C:\>ping 203.64.173.48 -n 10 Pinging 203.64.173.48 with 32 bytes of data: Reply from 203.64.173.48: bytes=32 time<1ms TTL=63 Reply from 203.64.173.48: bytes=32 time<1ms TTL=63 ...(略) Ping statistics for 203.64.173.48: Packets: Sent = 10, Received = 10, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms 在学校内测试DNS 回应时间都少於1毫秒 -------- 结论 1.先测试以下指令 看你连到学校DNS正不正常 C:\>ping 203.64.173.48 -n 100 2.再测试以下指令 看到中华电信DNS正不正常 C:\>ping 168.95.1.1 -n 100 3.测试到区网内电脑正不正常 C:\>ping XXX.XXX.XXX.XXX -n 100 4.有问题打一下tracert看是哪一段错了 C:\>tracert 168.95.1.1 --

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