connection refused by remote host

qdigrp

各位好!
昨天,由于做网络调整,需要连到cisco 3750这台交换机,但发现connection refused by remote host这个故障提示:
而后,我把交换机做重启处理,故障解除. 我在网上查了相关的资料,说我是telnet 服务没开,但我想不可能,因为重启之后故障解决了.
(我很困惑为什么会出现这样的故障)

我不知道大家有没有遇到同样的同题,望答复!

[ 本帖最后由 qdigrp 于 2009-12-22 11:31 编辑 ]

cheveu

思科的货也不是像日出日落一样精准。
IOS出问题是常有的事，有BUG也不奇怪。
俺的经验，思科的东西，每三个月重启动一次，可以降低IOS出错的概率。

ssffzz1

当初你别重启。用CONSOLE口也许能够进去。
这个原因比较多，最可能的就是当前登陆用户满了。或者先前谁做了限制没保存，你重启就放开了。

如果有日志的话，看一下日志或许有收获。

qdigrp

吸取你的经验

qdigrp

这一点我可以向你保证,别人不可能登录到这台机,只允许我一个人登录.

ssffzz1

那你看看日志吧。如果日志没了就很难说了。

qdigrp

见鬼了.又出现了,郁闷

qdigrp

C3750>s log
Syslog logging: enabled (0 messages dropped, 0 messages rate-limited, 0 flushes, 0 overruns)
    Console logging: level debugging, 11359 messages logged
    Monitor logging: level debugging, 0 messages logged
    Buffer logging: level debugging, 11359 messages logged
    Exception Logging: size (4096 bytes)
    File logging: disabled
    Trap logging: level informational, 11637 message lines logged
         
Log Buffer (4096 bytes):
isco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %SYS-5-CONFIG_I: Configured from console by vty0 (192.168.16.223)
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).
1w0d: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet1/0/7 (not half duplex), with cisco_2950_11 GigabitEthernet0/1 (half duplex).

ssffzz1

现在是用CONSOLE口登陆的啊。

qdigrp

是啊