引用:

原帖由 fan 于 2008-9-26 02:02 发表
回楼上：
1. 电信一直能用，速度嗖嗖的；
2. 电信出口上论坛，速度同样也嗖嗖的；
3. 电信出口ping lanbaoshu.com，平均回应55ms。鉴于三更半夜网速快得很不真实，明天高峰期再ping。 ...

高峰期的时候分别用教育网跟电信出口ping下xjst与lanbaoshu.com[奢侈品的那个站]...图抓来

现在应该是平峰期。测试结果如下：
==================================
教育网：
Pinging lanbaoshu.com [60.195.249.49] with 32 bytes of data:

Reply from 60.195.249.49: bytes=32 time=263ms TTL=46
Reply from 60.195.249.49: bytes=32 time=262ms TTL=46
Reply from 60.195.249.49: bytes=32 time=254ms TTL=46
Reply from 60.195.249.49: bytes=32 time=246ms TTL=46

Ping statistics for 60.195.249.49:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 246ms, Maximum = 263ms, Average = 256ms
-------------------------
Pinging bbs.xjst.org [216.97.227.55] with 32 bytes of data:

Reply from 216.97.227.55: bytes=32 time=267ms TTL=48
Reply from 216.97.227.55: bytes=32 time=266ms TTL=48
Reply from 216.97.227.55: bytes=32 time=268ms TTL=48
Reply from 216.97.227.55: bytes=32 time=268ms TTL=48

Ping statistics for 216.97.227.55:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 266ms, Maximum = 268ms, Average = 267ms
====================================
电信出口：
Pinging lanbaoshu.com [60.195.249.49] with 32 bytes of data:

Reply from 60.195.249.49: bytes=32 time=56ms TTL=50
Reply from 60.195.249.49: bytes=32 time=57ms TTL=50
Reply from 60.195.249.49: bytes=32 time=56ms TTL=50
Reply from 60.195.249.49: bytes=32 time=55ms TTL=50

Ping statistics for 60.195.249.49:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 55ms, Maximum = 57ms, Average = 56ms
------------------------------
Pinging bbs.xjst.org [216.97.227.55] with 32 bytes of data:

Reply from 216.97.227.55: bytes=32 time=250ms TTL=50
Reply from 216.97.227.55: bytes=32 time=250ms TTL=50
Reply from 216.97.227.55: bytes=32 time=250ms TTL=50
Reply from 216.97.227.55: bytes=32 time=249ms TTL=50

Ping statistics for 216.97.227.55:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 249ms, Maximum = 250ms, Average = 249ms
==================================
实验室交换机有问题，今天丢包现象比较严重，因而没敢在后面加-n。

看起来电信跟教育网速度相当了?

高峰期测试结果：
=======================
教育网：
Pinging lanbaoshu.com [60.195.249.49] with 32 bytes of data:

Reply from 60.195.249.49: bytes=32 time=285ms TTL=46
Reply from 60.195.249.49: bytes=32 time=284ms TTL=46
Reply from 60.195.249.49: bytes=32 time=284ms TTL=46
Reply from 60.195.249.49: bytes=32 time=288ms TTL=46

Ping statistics for 60.195.249.49:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 284ms, Maximum = 288ms, Average = 285ms
---------------------------
Pinging bbs.xjst.org [216.97.227.55] with 32 bytes of data:

Reply from 216.97.227.55: bytes=32 time=282ms TTL=48
Reply from 216.97.227.55: bytes=32 time=278ms TTL=48
Reply from 216.97.227.55: bytes=32 time=272ms TTL=48
Reply from 216.97.227.55: bytes=32 time=273ms TTL=48

Ping statistics for 216.97.227.55:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 272ms, Maximum = 282ms, Average = 276ms
====================================
电信出口：
Pinging lanbaoshu.com [60.195.249.49] with 32 bytes of data:

Reply from 60.195.249.49: bytes=32 time=60ms TTL=50
Reply from 60.195.249.49: bytes=32 time=62ms TTL=50
Reply from 60.195.249.49: bytes=32 time=62ms TTL=50
Reply from 60.195.249.49: bytes=32 time=62ms TTL=50

Ping statistics for 60.195.249.49:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 60ms, Maximum = 62ms, Average = 61ms
---------------------------
Pinging bbs.xjst.org [216.97.227.55] with 32 bytes of data:

Reply from 216.97.227.55: bytes=32 time=279ms TTL=50
Reply from 216.97.227.55: bytes=32 time=296ms TTL=50
Reply from 216.97.227.55: bytes=32 time=281ms TTL=50
Reply from 216.97.227.55: bytes=32 time=296ms TTL=50

Ping statistics for 216.97.227.55:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 279ms, Maximum = 296ms, Average = 288ms
==============================
结论：
1. lanbaoshu.com 电信绝对优势。那速度……
2. xjst似乎电信和教育网相差不大。中等水平。然而实际上电信效果远好于教育网。
3. 原因可能是最近教育网丢包现象时有发生，宿舍网络情况略好于办公网。考虑到同学们主要上网地点在宿舍，尚属可以接受的范围内。

[ 本帖最后由 fan 于 2008-9-26 22:12 编辑 ]

看来真得考虑下主机了...

引用:

原帖由 samoolee 于 2008-9-27 09:53 发表
看来真得考虑下主机了...

已确认：最近的丢包纯属实验室交换机的问题。现在的速度已经很好了。

好，顶了

KB，出差好久，回来发现变化好大！可怜fan同学又出去了