: I) {3 j; {) n/ _$ S! Z Options: 6 b* ^2 U- ^' C; n% v * A r! M! @7 D' b
-t Ping the specified host until stopped.To see statistics and continue - type Control-Break;To stop - type Control-C. o& Z. u9 N7 @6 w" G 2 u0 E# R+ b0 y+ M 不停的ping地方主机，直到你按下Control-C。 " o, u+ B% n4 A* v# _" z, Q3 [ 5 X; X" k8 z4 }0 n8 l3 p 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。 & X$ g. Q5 E2 `0 F! |' b- C3 s# E
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-a Resolve addresses to hostnames. 5 |/ M) C% p. U+ M3 p& k
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解析计算机NetBios名。 # g$ C1 n9 q, a I
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示例：C:＼>ping -a 192.168.1.21 7 D9 D4 @, k( ?' {
1 ]( z) i2 ]: P, i G0 c Pinging iceblood.yofor.com [192.168.1.21] with 32 bytes of data: : u0 r5 h; x- c. ]) z3 m
0 }& t$ Y1 N# M' n3 }( a) I Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 7 S- d3 H$ ?* ~& {0 G( | 7 \8 Q* j' o: [
Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 1 R$ i! z8 z& o# `7 F / B2 a) R z" t. f Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 : H& Z8 i: B1 Q. _0 `. J
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Reply from 192.168.1.21: bytes=32 time<10ms TTL=254 ' U5 D# Y# q8 }# H8 B2 t! Y5 O * {% K, E$ {6 f5 V4 g8 |7 Q Ping statistics for 192.168.1.21: # {- G; ?, V: g* y; r9 K " f9 l6 [$ T7 M M( z Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds: % W) {$ z2 c# o# T5 \# T 9 @7 l7 ~0 V; I% G o( F, p
Minimum = 0ms, Maximum = 0ms, Average = 0ms : R+ ?8 [% R3 Y
2 i9 Q8 u2 C. \9 } 从上面就可以知道IP为192.168.1.21的计算机NetBios名为iceblood.yofor.com。 8 Z% \2 [$ y; m9 R 1 T5 j9 b8 N0 B$ j
-n count Number of echo requests to send. * s; y1 h J) _+ X4 v* U
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发送count指定的Echo数据包数。 " y' I+ h& N9 `0 E
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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： 0 s0 O. u' s: d9 D( N$ A
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C:＼>ping -n 50 202.103.96.68 5 ]) R* i0 w, D& m
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Pinging 202.103.96.68 with 32 bytes of data: : i, _+ z$ {4 O% |, K* h- }
- P `' n1 l- u9 D5 o/ Y0 G( V Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 ; n4 W5 w$ T" K
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Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 ; L( W5 J4 U/ E
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Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 1 G; S0 L- [# a) Z: I; c$ S' n- J
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Request timed out. 2 p8 X- z6 G0 \2 D6 o" \. T; j o+ F$ i& _ z! M. u7 ?
……………… 2 c7 U: C% D9 z) x6 G; \
1 i2 }9 e+ `! y Reply from 202.103.96.68: bytes=32 time=50ms TTL=241 4 K9 r5 g: @8 A* ]+ n1 S5 p
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Ping statistics for 202.103.96.68: 9 Z' D+ m+ q; z$ P# e 3 ?" `: o& a- `& d" e: o
Packets: Sent = 50, Received = 48, Lost = 2 (4% loss),Approximate round trip times in milli-seconds: & o" Z, g0 o }7 [7 R4 M 7 g+ t6 }: O5 p) A, k* E6 A% r Minimum = 40ms, Maximum = 51ms, Average = 46ms " E2 T% A; i4 l- U 6 t9 i# M1 i* N3 E8 T4 `
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。 ' t1 D) [2 Z2 S/ g8 K, H- _ \ % Y+ v6 T+ z' C; } -l size Send buffer size. 2 ~1 e G& _( J5 B- u3 V; B
M/ V$ Y$ b) q2 F9 f 定义echo数据包大小。作者: 冷雨清心 时间: 2008-9-25 15:54
