NetCrunch creates the physical representation of the network. Physical segments topology in NetCrunch is represented as a tree, where the root of the tree is always the bridge to which the node running NetCrunch is connected.
It may be necessary to insert manually additional Layer 2 devices such as switches or hubs that were not found and mapped out by the physical segments configuration wizard.
You can only add Layer 2 devices at the root of the physical segments maps tree.
How to insert a Layer 2 device:
- Click the Physical Segments section in the Atlas Views window. The root of the physical segments topology map opens in the Map window.
Right click->Insert->Layer 2 Device. The Add Layer 2 Device wizard opens.- Enter the IP address of the new Layer 2 device. You may click the Browse icon to search for the desired node in the opened Select Node or Map window. Click
NEXT. - Enter the SNMP port number the SNMP service on the node uses and select the SNMP profile. Click
NEXT. - Click
FINISH.
The new device is displayed in the physical segments map.
Note: You can only add a Layer 2 device if physical segments monitoring is enabled in the program. This task is accomplished in the program options or by clicking the Physical Segments section in the Atlas Views window.
To view the list of ports, right-click the selected switch and from the context menu select Status and then Port Mapping tab.
In step 4 you can click the Edit Profile icon to edit the properties of the SNMP profile or create a new one - for example, to use different Read Community (SNMPv1, SNMPv2) or write authentication user and password (SNMPv3).
See also:
