all packet throw one switch port ?

[haneo]

I want that all traffic passing throw my cisco catalyst 1912
go throw one port to monitior the traffic (with a sniffer for analysing).

please can someone helpme? how this mode is called?

 

[eurobadger]

Hi

This is called port mirroring. It is done with the SPAN command, but I think the number of ports than can be monitored on a single port is limited to four.

Search on

http://www.cisco.com

for Span.

EB