[Port mirroring with cisco 2950]

hi all
i am new to this port mirroring thing. i just wanted to know wat is
the first step in port mirroring as in does 2950, which is a managable
switch, requires vlan concept before doing port mirroring?

i used these commands :
monitor session 1 source interface fa 0/1
monitor session 1 destination interface fa 0/2

now theoretically all the incomming & outgoing traffic of port 1 is
directed to port 2. How can i see those incomming and outging packets? do i need any software like cisco network assistant for this purpose or the above 2 command are enough for it?

ive used this command:
show int fa 0/2

but it gave me some general information. I want to see all the traffic
not the summary.
Secondly how can i assemble packets from that info?

P.S : im using 2950 switch

 

Simplest solution would be to install Wireshark on a PC connected directly to that port.