lunarpages的ftp上传下载速度过慢的解决过程

by 雅 木察 on 2007-11-21

11月初使用Lunarpages的空间,半个月来,速度一直很快。下载速度能达到120K/S,上传也能达到60K/S,但是从11月18日开始,开始就不稳定。下载文件时初始速度可以达到120K/S以上,但是马上就快速下降到10K/S左右。FTP的速度也是如此,先快后慢。而且慢得无法忍受。于是发帖询问过:

http://www.idcspy.com/bbs/thread-13235-1-2.html

自己也从几个方面进行了测试。自己的ping值如下:

Reply from 67.210.98.5: bytes=32 time=225ms TTL=51
Reply from 67.210.98.5: bytes=32 time=226ms TTL=51
Reply from 67.210.98.5: bytes=32 time=226ms TTL=51
Reply from 67.210.98.5: bytes=32 time=225ms TTL=51

Ping statistics for 67.210.98.5:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 225ms, Maximum = 226ms, Average = 225ms

请朋友帮测试的

Pinging 67.210.98.5 with 32 bytes of data:

Reply from 67.210.98.5: bytes=32 time=261ms TTL=47
Reply from 67.210.98.5: bytes=32 time=306ms TTL=47
Reply from 67.210.98.5: bytes=32 time=258ms TTL=47
Reply from 67.210.98.5: bytes=32 time=250ms TTL=47
Reply from 67.210.98.5: bytes=32 time=340ms TTL=47
Reply from 67.210.98.5: bytes=32 time=253ms TTL=47
Reply from 67.210.98.5: bytes=32 time=321ms TTL=47
Reply from 67.210.98.5: bytes=32 time=345ms TTL=47
Reply from 67.210.98.5: bytes=32 time=265ms TTL=47
Reply from 67.210.98.5: bytes=32 time=256ms TTL=47
Reply from 67.210.98.5: bytes=32 time=280ms TTL=47
Reply from 67.210.98.5: bytes=32 time=307ms TTL=47
Reply from 67.210.98.5: bytes=32 time=334ms TTL=47
Reply from 67.210.98.5: bytes=32 time=256ms TTL=47
Reply from 67.210.98.5: bytes=32 time=261ms TTL=47

Ping statistics for 67.210.98.5:
Packets: Sent = 15, Received = 15, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 250ms, Maximum = 345ms, Average = 286ms

这样看来IP应该没有问题,没有被封;

然后我把FTP都改成被动模式,也是很慢,情况没有得到改观;

用Dreamhost空间SSH远程FTP连接测试一下,速度很快
3MB的文件一秒钟 get完成 (如下图点击放大查看) (3354.8 kB/s)

Dreamhost空间SSH远程FTP连接测试

朋友说绝对不是LP的网络问题
可能是我自己或ISP出口带宽问题

于是我的tracert数据如下图

tracert数据

这样看来,我的路由没有什么问题。接下来,我就发邮件联系lunarpages的客服;

lunarpages的回复,我提供了所在地理位置、IP地址、TRACERT数据、ISP等信息后,他们回复如下Hi,

Thank you for providing that tracert. looking at it I do see that there is some latency that begins with the 202.97.51.74 IP address.

http://www.dnsstuff.com/tools/whois.ch?ip=202.97.51.74

You may want to check with your ISP and see if they have been having any connectivity issues providing a copy of this tracert to them for review as well.

I hope this is helpful.

提示我应该是我的ISP问题。我估计是电信网络出口问题;

在等待中21日所有回复正常:下图为11月21日测试结果:

ftp

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