In the process of debugging, maintenance of Cisco switch ws-c3750x-24s-e, there are always some problems do not know how to solve, here are some problem-solving experience, share with yours.
1, Don't use
the DNS server to resolve the
host name
What do you
mean, when we are debugging switch, inevitably the wrong command, such as multi typed a letter or small typed a letter, originally thought that the exchange opportunity thecommand error, but then a strange thing happened, the system is not prompt us tocommand error, but the a connection (is this
command is executed the same), as shown below: 3550#beijing.
That is to
say, Cisco switches will think incorrect command for the host name, and try to resolve it by
querying the DNS server. If this switch is arranged on the DNS server, progresswill be faster, if there is no DNS server, the schedule can be called a slow, how to avoid this situation? Type the following command: 3550#conf T. executes the command, type thecommand when any error, to do connected to the Cisco switch is not a long time.
2, Know why the switch port is
on-off state
As a network administrator, we carry on the switch to a new service access time, a free
portis the first to find Cisco switch above, business configuration necessary to it, and finally thecable connected, but will switch the cable more cases.
With the
naked eye is difficult to immediately put the free port accurately identified (if not careful the wrong, can cause a network failure), so we
are logged on to the switch, the corresponding command to view, the command is as follows: 3550#show inter. this timeexchange opportunities are shown detailed information each of the ports, including the port of
on-off state, but the way is
still too slow.
Some experience in the use of cisco switch ws-c2960g-8tc-l have shared with yours, hope
can help your to solve the problem of using the cisco switch.
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