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說到網(wǎng)速測試,測試網(wǎng)速,大家?guī)缀醵际鞘褂靡恍?a target="_blank" href="http://howtostagehomes.com/info/archives/speedtest/2010/04/23331/">測速工具,或者測速網(wǎng)站來進(jìn)行測速的。其實(shí)使用Ping命令也可以測速。
我們先了解一下Ping命令的使用
Ping命令幫助說明
C:\Documents and Settings\Administrator>ping /?Usage: ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS]
[-r count] [-s count] [[-j host-list] | [-k host-list]]
[-w timeout] [-R] [-S srcaddr] [-4] [-6] target_nameOptions:
-t Ping the specified host until stopped.
To see statistics and continue - type Control-Break;
To stop - type Control-C.
-a Resolve addresses to hostnames.
-n count Number of echo requests to send.
-l size Send buffer size.
-f Set Don't Fragment flag in packet (IPv4-only).
-i TTL Time To Live.
-v TOS Type Of Service (IPv4-only).
-r count Record route for count hops (IPv4-only).
-s count Timestamp for count hops (IPv4-only).
-j host-list Loose source route along host-list (IPv4-only).
-k host-list Strict source route along host-list (IPv4-only).
-w timeout Timeout in milliseconds to wait for each reply.
-R Trace round-trip path (IPv6-only).
-S srcaddr Source address to use (IPv6-only).
-4 Force using IPv4.
-6 Force using IPv6.
Ping命令詳解
使用 ping可以測試計(jì)算機(jī)名和計(jì)算機(jī)的 ip 地址,驗(yàn)證與遠(yuǎn)程計(jì)算機(jī)的連接,通過將 icmp 回顯數(shù)據(jù)包發(fā)送到計(jì)算機(jī)并偵聽回顯回復(fù)數(shù)據(jù)包來驗(yàn)證與一臺或多臺遠(yuǎn)程計(jì)算機(jī)的連接,該命令只有在安裝了 tcp/ip 協(xié)議后才可以使用。 現(xiàn)在打開你的ms-dos(開始→程序→ms-dos),用win2000的朋友打開cmd.exe(這是win2000下的ms-dos,開始→程序→附件→"命令提示符" 或 開始→搜索文件或文件夾→"填入cmd.exe",找到后雙擊運(yùn)行就可以了。) 下面我們來看看他的命令:
ping [-t] [-a] [-n count] [-l length] [-f] [-i ttl] [-v tos] [-r count] [-s count] [[-j computer-list] | [-k computer-list]] [-w timeout] destination-list
參數(shù)
-t
ping 指定的計(jì)算機(jī)直到中斷。ctrl+c停止
-a
將地址解析為計(jì)算機(jī)名。例:c:\>ping -a 127.0.0.1
pinging china-hacker [127.0.0.1] with 32 bytes of data:(china-hacker就是他的計(jì)算機(jī)名)
reply from 127.0.0.1: bytes=32 time<10ms ttl=128reply from 127.0.0.1: bytes=32 time<10ms ttl=128reply from 127.0.0.1: bytes=32 time<10ms ttl=128reply from 127.0.0.1: bytes=32 time<10ms ttl=128
ping statistics for 127.0.0.1:packets: sent = 4, received = 4, lost = 0 (0% loss),approximate round trip times in milli-seconds:minimum = 0ms, maximum = 0ms, average = 0ms
-n count
發(fā)送 count 指定的 echo 數(shù)據(jù)包數(shù)。默認(rèn)值為 4。
-l length
發(fā)送包含由 length 指定的數(shù)據(jù)量的 echo 數(shù)據(jù)包。默認(rèn)為 32 字節(jié);最大值是 65,527。
-f
在數(shù)據(jù)包中發(fā)送“不要分段”標(biāo)志。數(shù)據(jù)包就不會被路由上的網(wǎng)關(guān)分段。
-i ttl
將“生存時間”字段設(shè)置為 ttl 指定的值。
-v tos
將“服務(wù)類型”字段設(shè)置為 tos 指定的值。
-r count
在“記錄路由”字段中記錄傳出和返回?cái)?shù)據(jù)包的路由。count 可以指定最少 1 臺,最多 9 臺計(jì)算機(jī)。
-s count
指定 count 指定的躍點(diǎn)數(shù)的時間戳。
-j computer-list
利用 computer-list 指定的計(jì)算機(jī)列表路由數(shù)據(jù)包。連續(xù)計(jì)算機(jī)可以被中間網(wǎng)關(guān)分隔(路由稀疏源)ip 允許的最大數(shù)量為 9。
-k computer-list
利用 computer-list 指定的計(jì)算機(jī)列表路由數(shù)據(jù)包。連續(xù)計(jì)算機(jī)不能被中間網(wǎng)關(guān)分隔(路由嚴(yán)格源)ip 允許的最大數(shù)量為 9。
-w timeout
指定超時間隔,單位為毫秒。
destination-list
指定要 ping 的遠(yuǎn)程計(jì)算機(jī)。
c:\>ping ds.internic.net
pinging ds.internic.net [192.20.239.132] with 32 bytes of data: (192.20.239.132 他的ip地址)
reply from 192.20.239.132:bytes=32 time=101ms ttl=243
reply from 192.20.239.132:bytes=32 time=100ms ttl=243
reply from 192.20.239.132:bytes=32 time=120ms ttl=243
reply from 192.20.239.132:bytes=32 time=120ms ttl=243
Ping命令格式:
ping ip地址 -l 字節(jié)數(shù)
注:上面的命令中 l 是字母l,不是數(shù)字1
網(wǎng)速等于≈(發(fā)送的字節(jié)數(shù)/返回的時間[毫秒])K字節(jié)
以上計(jì)算的結(jié)果速為字節(jié)(byte),不是我們通常說的位(bps)
如:
C:\Documents and Settings\Administrator>ping 202.101.224.68 -l 1000
Pinging 202.101.224.68 with 1000 bytes of data:
Reply from 202.101.224.68: bytes=1000 time=38ms TTL=251
Reply from 202.101.224.68: bytes=1000 time=38ms TTL=251
Reply from 202.101.224.68: bytes=1000 time=38ms TTL=251
Reply from 202.101.224.68: bytes=1000 time=38ms TTL=251
Ping statistics for 202.101.224.68:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 38ms, Maximum = 38ms, Average = 38ms
根據(jù)上述發(fā)送及返回的信息可以簡單得出到地址202.101.224.68的網(wǎng)速為:
網(wǎng)速等于≈(發(fā)送的字節(jié)數(shù)/返回的時間[毫秒])K字節(jié)
≈1000/38K字節(jié)
≈26.32K字節(jié)