[这个贴子最后由波比在 2005/02/27 11:39pm 第 1 次编辑]
测试地点:江苏昆山网通
网络环境:ADSL终端、距离本机终端最近的CPN机房路由器
网络类型:1、中国网络通信集团公司“China169宽带中国”宽带互联网
2、中国网络通信(控股)有限公司CNCNet
本次测试选择网络类型(2)
测试过程:在ADSL本地终端PC上用ping命令测试连接到绵阳电信(www.scmy169.com)的延时以及丢包率
测试结果:
C:\Documents and Settings\Administrator>ping www.scmy169.com -t
Pinging www.scmy169.com [61.139.33.38] with 32 bytes of data:
Reply from 61.139.33.38: bytes=32 time=422ms TTL=45
Reply from 61.139.33.38: bytes=32 time=438ms TTL=45
Reply from 61.139.33.38: bytes=32 time=438ms TTL=45
Reply from 61.139.33.38: bytes=32 time=438ms TTL=45
Reply from 61.139.33.38: bytes=32 time=422ms TTL=45
Reply from 61.139.33.38: bytes=32 time=438ms TTL=45
Reply from 61.139.33.38: bytes=32 time=438ms TTL=45
Reply from 61.139.33.38: bytes=32 time=422ms TTL=45
Reply from 61.139.33.38: bytes=32 time=422ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=422ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=421ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=421ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=421ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=421ms TTL=45
Reply from 61.139.33.38: bytes=32 time=484ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=421ms TTL=45
Reply from 61.139.33.38: bytes=32 time=421ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=421ms TTL=45
Reply from 61.139.33.38: bytes=32 time=453ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=453ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=453ms TTL=45
Reply from 61.139.33.38: bytes=32 time=468ms TTL=45
Reply from 61.139.33.38: bytes=32 time=453ms TTL=45
Reply from 61.139.33.38: bytes=32 time=453ms TTL=45
Reply from 61.139.33.38: bytes=32 time=438ms TTL=45
Reply from 61.139.33.38: bytes=32 time=438ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=453ms TTL=45
Reply from 61.139.33.38: bytes=32 time=437ms TTL=45
Reply from 61.139.33.38: bytes=32 time=453ms TTL=45
Ping statistics for 61.139.33.38:
Packets: Sent = 43, Received = 43, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 421ms, Maximum = 484ms, Average = 437ms
Control-C
^C
C:\Documents and Settings\Administrator>
说明:没有丢包现象,最大延时484毫秒,最小421毫秒,平均437毫秒
结论:网络状况良好,忙时延时较大,不影响浏览文字等字符型文件,但对于上传、下载图片以及大数据量文件较慢。
测试过程:由于成都电信对某些服务器进行了ping、tracert等命令屏蔽,因此到www.my-you.com(61.139.33.126)只能从本机终端登陆到最近的CPN机房路由器上进行tracer路由测试
测试结果:
KS3550-2#tracer 61.139.33.126
Type escape sequence to abort.
Tracing the route to 61.139.33.126
1 221.6.88.65 0 msec 0 msec 0 msec
2 221.6.65.149 0 msec 4 msec 0 msec
3 221.6.65.130 0 msec 4 msec 0 msec
4 221.6.65.173 0 msec 0 msec 0 msec
5 219.158.16.137 8 msec 4 msec 4 msec
6 219.158.8.253 36 msec 32 msec 36 msec
7 219.158.4.25 36 msec 32 msec 36 msec
8 219.158.4.6 44 msec 44 msec 44 msec
9 219.158.5.74 44 msec 44 msec 44 msec
10 202.97.15.181 336 msec 336 msec 336 msec
11 202.97.36.85 336 msec 340 msec 336 msec
12 202.97.35.170 356 msec 356 msec 356 msec
13 202.97.24.250 356 msec 356 msec 352 msec
14 202.97.24.66 364 msec 356 msec 360 msec
15 61.139.35.34 360 msec 356 msec 356 msec
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
KS3550-2#
说明:本次测试只能跟踪路由到ChinaNet骨干网四川电信骨干节点GSR路由器(61.139.35.34),从延时上来看,平均约360毫秒,效果还是可以的。
结论:网络状况良好,忙时延时较大,不影响浏览文字等字符型文件,但对于上传、下载图片以及大数据量文件效果不理想。
测试过程:由于四川电信对某些服务器进行了ping、tracert等命令屏蔽,因此到www.mianyang.gov.cn(218.89.178.238)只能从本机终端登陆到最近的CPN机房路由器上进行tracer路由测试
测试结果:
KS3550-2#tracer 218.89.178.238
Type escape sequence to abort.
Tracing the route to 218.89.178.238
1 221.6.88.65 0 msec 0 msec 4 msec
2 221.6.65.149 0 msec 4 msec 0 msec
3 221.6.65.130 0 msec 4 msec 0 msec
4 221.6.65.173 4 msec 0 msec 4 msec
5 219.158.16.137 4 msec 8 msec 8 msec
6 219.158.8.253 32 msec 36 msec 32 msec
7 219.158.4.25 36 msec 36 msec 36 msec
8 219.158.4.6 44 msec 44 msec 44 msec
9 219.158.5.74 44 msec 44 msec 44 msec
10 202.97.15.181 336 msec 336 msec 336 msec
11 202.97.36.85 336 msec 332 msec 336 msec
12 202.97.35.170 356 msec 356 msec 356 msec
13 202.97.24.18 352 msec * 352 msec
14 202.97.24.66 356 msec 356 msec 356 msec
15 61.139.35.54 356 msec 356 msec 356 msec
16 61.139.89.54 356 msec 356 msec 356 msec
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
KS3550-2#
说明:本次测试只能跟踪路由到ChinaNet骨干网四川电信骨干节点和ChinaNet四川省网绵阳节点GSR路由器(61.139.89.54),从延时上来看,平均约<360毫秒,效果还是可以的。
结论:网络状况良好,忙时延时较大,不影响浏览文字等字符型文件,但对于上传、下载图片以及大数据量文件速度一般。
综上所述,网络较慢的原因在于中国电信集团与中国网通集团间网间互联带宽不足所致。目前中国电信集团ChinaNet与中国网通集团China169仅仅在北京——广州间进行互联(即北京网通访问北京电信网站也需要到广州绕弯弯),互联带宽为4×2.5Gbit/s。中国电信集团ChinaNet与中国网通(控股)有限公司CNCNet分别在北京、上海、广州、重庆互联,互联带宽各为2×155Mbit/s。 |