0 K7 z! @7 U; y5 Z7 J& [8 o0 v O -t Ping the specified host until stopped.To see statistics and continue - type Control-Break;To stop - type Control-C. # J& H' ?9 q3 Z; D1 l ; }" w+ P, a$ j 不停的ping地方主机，直到你按下Control-C。 - N7 V" t# M9 r4 h, n: D/ ]) P6 P* `$ F
# H, H) a o! R% v 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。 + g) p" a8 M, c% X
; ?* }, [" v" c; ] -a Resolve addresses to hostnames. # w" S& E, u: R" `$ K ( c, ~. ?3 v! ~: ^$ N 解析计算机NetBios名。 . q* S: \6 e( L
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示例：C:＼>ping -a 192.168.1.21 7 I4 ]+ s/ w R* k' _: V# X
! m4 [6 w' l. w6 ]% e Pinging iceblood.yofor.com [192.168.1.21] with 32 bytes of data: 4 {# o2 x: B, L - k% t# g) R, ]' p) N& L$ D1 W9 E
Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 / `4 ]; S2 ~, S0 {5 t e. u
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Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 - t5 P }" _9 a N
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Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 $ {0 r Q: x7 m; o' J2 R' g: A N2 L& b- e
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Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 " B- M1 [+ N, J1 A4 M0 _' |
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Ping statistics for 192.168.1.21: 8 P: [/ W6 j" [% n2 Q# ` ) u' c0 M- z8 @+ C" `+ ~7 [) G
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds: * A* s4 {# S1 @. {0 f
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Minimum = 0ms, Maximum = 0ms, Average = 0ms 5 Z9 @1 x" Y0 e* T N1 m6 ?9 X4 l 从上面就可以知道IP为192.168.1.21的计算机NetBios名为iceblood.yofor.com。 0 c0 ]! B4 i( k c0 S" @4 |
: h- w! }* C8 x4 s0 ]6 Q -n count Number of echo requests to send. + V$ E5 ?1 G2 g ) m; p" ~& u2 `3 H+ q! F2 v 发送count指定的Echo数据包数。 1 R$ l8 G: J! R5 W
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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： 7 S3 a4 U- `& W- |1 p* } ; J; {- x. A" [ @ C:＼>ping -n 50 202.103.96.68 * ~" G5 Y4 t2 q' ?* u; n
3 J1 H. U4 A q' T x7 f8 W Pinging 202.103.96.68 with 32 bytes of data: 9 [/ P! p! ^3 s5 L* N( i& q 8 s! V: j2 z+ O. k" r
Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 $ z/ c; T u8 A+ D6 I( M 9 d5 F/ @: ^2 w- w7 J6 ], y1 I
Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 9 g0 f1 \ a9 ^8 e5 x ' I N7 v9 K3 M4 v7 y
Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 0 o. p4 z' |, z! a3 G
* p* R! j- e( @' n/ X' o Request timed out. * j6 G7 H; U( b1 t/ G
2 D) ~+ H$ ]2 e9 _& A ……………… 0 W: b* a1 l. O
7 [) z# N& V$ h- |- m8 e, i Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 $ `0 s' I1 E5 R4 j$ q1 ~ / D" C" U3 i2 w0 v% d% o
Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 % N# t2 t% P# Q. E, P6 z + T9 e) w4 j5 {7 K Ping statistics for 202.103.96.68: 6 ?& y3 e3 m0 t$ [4 n 5 S/ b7 G/ {, n9 N Packets: Sent = 50, Received = 48, Lost = 2 (4% loss),Approximate round trip times in milli-seconds: 8 v9 \2 B+ d' t: p + a7 d+ U. O8 ?, C [8 c% u: G7 s Minimum = 40ms, Maximum = 51ms, Average = 46ms 0 m4 ]* l, @2 k6 y/ n6 h
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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。 1 ]9 \3 L" P. _+ D# n( W
