l2discovery

Configuring Layer 2 Discovery

The appliance uses IEEE 802.1AB (LLDP)/Microsoft LLTD protocols and switch forwarding table to discover nodes visible from a port. These are Layer 2 protocols and do not cross a broadcast domain. More information is available at the following links:

http://en.wikipedia.org/wiki/Link_Layer_Topology_Discovery

http://en.wikipedia.org/wiki/Link_Layer_Discovery_Protocol

An ARP table is used to connect MAC addresses to IP addresses.

Note

Windows XP users need to download, install, and enable the LLTD responder driver from Microsoft.

The LLDP transmitter is not implemented in SonicOS Enhanced 5.7.0.0. This feature does not proactively manage the discovery. Discovery is active when the system boots up and then does not restart unless you click the L2 Discovery refresh button in the SonicOS management interface.

To restart Layer 2 discovery on multiple interfaces, select the checkbox next to the desired interfaces and then click the Refresh Selected button at the bottom of the page.