User guide

12-4 ExtremeWare EPICenter Software Installation and User Guide
Network Topology Views
The right-hand panel is the Map Element Description panel, that displays information
about the currently selected map element (node or link) if one (and only one) is selected.
Otherwise, the panel is empty.
WhenyoudoaDiscoveryoraddadeviceintheInventoryapplet,thenewlyaddeddevices
are placed into the default topology view, (named “Default”). If you have created other
maps with the Auto Populate View feature enabled, those views will also be populated
with the newly added devices. Device connectivity and the map hierarchy is determined
by the information learned from the EPICenterdatabase.
For views with the Auto Populate View option enabled, EPICenter places devices on the
Root Map or into submaps based on the following criteria:
• Devices with IP Forwarding enabled are always placed on the Root Map
• Devices without IP Forwarding enabled are placed in submaps based on the subnet
mask. IntheDefaultview, submapsarenamed based onthesubnetIPaddress plus the
subnet mask: for example, 10.205.0.0/16, 10.205.0.0/24, and so on.
Both Extreme and third-party devices are placed using these rules. For Extreme devices,
you can find the subnet mask and IP Forwarding status by looking at the device in the
VLAN applet. For third-party devices, you must query the device itself if you want to
determine these settings.
Map Elements
The following elements can appear on a map:
Device Nodes: Device nodes represent the managed devices found in EPICenter’s
Inventory data base.
Figure 12-2: Example of device nodes, including an unknown device type
A device node shows the following information:
• ThenameofthedeviceasitiskeptintheInventorydatabase
• An optional, user-supplied annotation for the node