User guide

Configuring Network Services Link Discovery
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AlliedView NMS Administration Guide
6.19 Link Discovery
For VLAN-related features of the NMS, such as the VLAN topology maps, EPSR, and UPC features, the NMS depends on
accurate link information to piece together the broadcast domain for each extended VLAN.
The LLDP protocol is a feature on devices and this provides the information needed by the AlliedView NMS to provide the
GUI for Link Discovery.
This subsection describes these interfaces and the specific functions Link Discovery.
• A Physical link between iMAPs will be automatically discovered if LLDP has been activated on its link ports at each end.
Note that LLDP activation must be done once using the CLI on each interface for which links are to be discovered.
• New links are only updated during discovery/re-discovery of the devices.
• The user can still create links manually, but when a link is discovered via LLDP and this conflicts with at least one of the
ports of a manually created link, the manually created link will be deleted and the LLDP link will be added. A warning
event will be sent to indicate that a link was invalid and has been deleted. The same behavior will also occur when the
existing link is a previously discovered link (rather than manually created) that has been changed.
All link details, including those for discovered links, can be viewed by double-clicking on the Linkset symbol on the Physical
Map, or by selecting the Physical Links table in the Network Inventory. Refer to the following figures.
Note: To configure devices so that they support LLDP, refer to 5.3.13.