Cisco 2950

our company has five Cisco 2950  and we want to learn how to check the traffic performance.... and check how the vlan is organized.
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ITsolutionWizardAuthor Commented:
Any helps?
For interface utilization typically you should install some of network monitoring tools (PRTG, Cacti, Nagios ... or google to choose your favorite).
Regarding VLANs
# show vlan brief
should show you all ports assigned to VLANs
# show int trunk
will show you VLANs permitted and currently active VLANs on trunk interface.

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ITsolutionWizardAuthor Commented:
Just need some suggestions which one .. better easier to use
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If you will watch only trunks, PRTG is free for 100 sensors and it is easy to implement. For more then that Nagios Network Analyzer is free but it is harder to implement.
ITsolutionWizardAuthor Commented:
What is trunks mean
At Cisco, trunk port is port that is forwarding tagged traffic - with more than one VLAN (Tagged port (other vendors)).

You will use Trunk ports between your switch to carried the allowed VLANS which you will allow. There are two types that a port can be configured :
1. Access port (These ports connects to users devices, Pcs, Phones,Server.etc)
2. A trunk port will be used to connect switches together when you have multiple VLANS.
2. A trunk port will be used to connect switches together when you have multiple VLANS.
Not necessary switches, on other end could be router, server, phones etc. Main criteria is more than 1 VLAN and at least one is tagged (there are special access configuration with 2 VLANs that are not trunk ports - for example Cisco's voice port)
That is correct. Didn't want to add to much info..
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