Discovery steps

To perform the network topology discovery follow the instructions
in the tabs "Step 1", "Step 2", "Step 3".

Step 1



1. Specify the ranges of the IP addresses for switch discovery.
For example: 192.168.0.*   192.168.0.100-200   172.16.200-255.*
Set SNMP access parameters for each range ("read community string" or user/password in
case of SNMPv3)

2. Discover the switches
Click "Run device discovery"
Discovered switches will be added to the list of SNMP devices (see table right).
Turn on the option "Discover routers and access points" to discover routers and access points
which support SNMP
If some of your switches are not discovered then test SNMP access to these switches with any
other SNMP utility. For example Paessler SNMP Tester (see screenshot)




3. Check that all switches are present within the list of discovered devices.

Step 2

1. Click "Collect SNMP data"
Wait until the process is finished.
In case of SNMPv3:
Cisco switches are not typically configured for reading of all the Bridge-MIB information on a
per-VLAN basis when using SNMPv3.
In this case you need to configure an SNMPv3 context as described here:
http://www.switchportmapper.com/support-mapping-a-cisco-switch-using-snmpv3.htm

Step 3

1. Click "Discover the Topology"
Compare the discovered topology with the actual topology.
If necessary use your own connection list to correct the discovered topology.
(Options - Discovery - Edit connection table)
Edit connection table and click "Discover the Topology" again.

2. Click "Apply the New Topology" to save the new topology map.

The discovered topology is shown in the tab "Network Browser".