Configuring Topology Discovery

You can enable the dynamic discovery of access topology. When ANCP discovery is enabled, an authentication server (like RADIUS) retrieves upstream and downstream access loop information from the configured access node. For information about configuring RADIUS, see JunosE Broadband Access Configuration Guide.

To enable ANCP discovery for a neighbor:

• Issue the discovery-mode command in L2C Configuration mode.
  host1(l2c-neighbor)#discovery-mode

You can use the no version to disable discovery mode.