+ f* ?+ w- T+ f/ {7 a i) ` -t Ping the specified host until stopped.To see statistics and continue - type Control-Break;To stop - type Control-C. 4 { H9 b4 ]5 u+ f9 V2 h4 [2 M
7 e9 t, j* b% R$ W1 E 不停的ping地方主机,直到你按下Control-C。 ; C! Z# H! Q; k, r) R8 @0 S( u- D& x+ x % }! K- M' u( z0 ]" A& I8 D
此功能没有什么特别的技巧,不过可以配合其他参数使用,将在下面提到。 5 | @3 z& z) t' k+ d( O, U/ u & }7 ]' U, y" s s' i$ w$ h -a Resolve addresses to hostnames. 7 }. a. h1 l) b
& l6 L p, B- E; K9 f( u1 C) v 解析计算机NetBios名。 $ l* Z n: V, f+ k- W7 t E$ O 1 D' r/ Z' a* \# H+ F9 S/ v3 N0 N
示例:C:\>ping -a 192.168.1.21 ( [" A9 Q3 @ G* _+ a# m) e" ` 0 M& M5 w& K# I$ G/ p. c) ^ Pinging iceblood.yofor.com [192.168.1.21] with 32 bytes of data: * ]( W+ A8 C2 Y/ R" d- o
# p- Z# Z- r' s. L$ d Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 @& ~: {9 t) t% P% F
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Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 7 P9 n; U; X" V Y, q ! g* Y8 R9 L3 U+ l' w9 I Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 2 x4 U0 D! v" `. z! K. i& c! A Y7 \! v7 \8 b2 p$ A; d
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Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 - _' B3 E6 t, Z" w- y
4 x& x1 S; {. h( j& W Ping statistics for 192.168.1.21: + ~. G# C& K% L( o+ h/ U/ N % c6 G8 i' a' ]3 P6 Z" M+ x' t
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds: 3 }$ _0 q+ q* s _5 c$ \
n$ p1 F* V# I% P3 F1 j# h# ^5 A8 T7 r Minimum = 0ms, Maximum = 0ms, Average = 0ms 8 H2 ~2 ]8 ]0 @' T
7 G, L$ x7 r4 G8 b& C 从上面就可以知道IP为192.168.1.21的计算机NetBios名为iceblood.yofor.com。 ! z2 W0 S7 Y- E5 a8 `( t _2 I 0 p( F- r# O) _* ~ b+ n -n count Number of echo requests to send. ! ~9 h, o- H8 B$ f- U0 ]- _( p
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发送count指定的Echo数据包数。 + o q( j/ A8 p$ R+ d( |0 I . R: J7 W7 d/ S1 t" p
在默认情况下,一般都只发送四个数据包,通过这个命令可以自己定义发送的个数,对衡量网络速度很有帮助,比如我想测试发送50个数据包的返回的平均时间为多少,最快时间为多少,最慢时间为多少就可以通过以下获知: " L: _ v6 y7 {3 r1 v
+ m; Q d* N6 y% b C:\>ping -n 50 202.103.96.68 - v) D' g* C" J8 h
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Pinging 202.103.96.68 with 32 bytes of data: . v( ?& S; V3 H) {: |: O
' ?* _- G9 d& q. g Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 # r9 [. ~! [9 x. V
4 q. q6 a9 D5 B$ R( }! z Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 8 G M. y+ s, [
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Request timed out. & Q; c' i# ^8 T0 _2 h: l7 n& e 6 H6 P! o" j9 o
……………… 5 ]/ r9 b5 z3 x7 |
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Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 " u _4 V8 S4 A0 z1 l( x; w \( o
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Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 / r3 z. A! s* z& x7 A
7 C7 c% z5 K1 ~5 Z Ping statistics for 202.103.96.68: ' c: e( S& \8 W! K3 o' ^( z, M( w
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Packets: Sent = 50, Received = 48, Lost = 2 (4% loss),Approximate round trip times in milli-seconds: 8 n; c3 p* k2 m
# S7 y* E3 X; l. C# [ Minimum = 40ms, Maximum = 51ms, Average = 46ms ) p: N7 m+ G& K) Q
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从以上我就可以知道在给202.103.96.68发送50个数据包的过程当中,返回了48个,其中有两个由于未知原因丢失,这48个数据包当中返回速度最快为40ms,最慢为51ms,平均速度为46ms。 0 w# K$ x# H3 H, g- d$ {
% b8 O# [/ @1 [! s -l size Send buffer size. ) U( `& M: B8 z5 n; I. v- C6 } # G, W m7 _8 d" N1 f 定义echo数据包大小。作者: 冷雨清心 时间: 2008-9-25 15:54