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Ping命令的返回结果

思科设备上的ping命令的返回结果：

!
Each exclamation point indicates receipt of a reply
.
Each period indicates the network server timed out while waiting for a reply
U
A destination unreachable error PDU was received
Q
Source quench (destination too busy)
M
Could not fragment
?
Unknown packet type
&
Packet lifetime exceeded

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This entry was posted on 星期一, 三月 15th, 2010 at 17:20 and is filed under Network. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “Ping命令的返回结果”

  1. Fly Zone » Blog Archive » Ping返回结果U.U.U Says:
    二月 11th, 2011 at 11:21

    [...] Cisco设备上使用Ping命令的时候经常出现U.U.U，是路由器返回的ICMP不可达信息（可参考Ping命令的返回结果）。 R2#ping 172.16.2.2 [...]

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