Dell W-Series 205H Instant 6.5.1.0-4.3.1.0 CLI Reference Guide - Page 186

Parameter Description Range After the initial startup scan is completed, connected mesh nodes evaluate mesh links every 30 seconds. If a mesh node finds a better uplink, the mesh node connects to the new parent to create an improved path to the mesh portal. reselect-never Connected mesh nodes do not evaluate - other mesh links to create an improved path to the mesh portal. startup-subthreshold Mesh points using the startup- - subthreshold reselection mode perform a single topology readjustment scan within 9 minutes of startup and 4 minutes after a link is formed. If no better parent is found, the mesh point returns to its original parent. This initial startup scan evaluates more distant mesh points before closer mesh points, and incurs a dropout of 5-8 seconds for each mesh point. After that time, each mesh node evaluates alternative links if the existing uplink falls below the configured threshold level (the link becomes a sub-threshold link). Best practices are to use the default startup-subthreshold value. Starting with ArubaOS 3.4.1, if a mesh point using the startup-subthreshold mode reselects a more distant parent because its original, closer parent falls below the acceptable threshold, then as long as that mesh point is connected to that more distant parent, it will seek to reselect a parent at the earlier distance (or less) with good link quality. For example, if a mesh point disconnects from a mesh parent 2 hops away and subsequently reconnects to a mesh parent 3 hops away, then the mesh point will continue to seek a connection to a mesh parent with both an acceptable link quality and a distance of two hops or less, even if the more distant parent also has an acceptable link quality. subthreshold-only Connected mesh nodes evaluate - alternative links only if the existing uplink becomes a sub-threshold link. NOTE: Starting with ArubaOS 3.4.1, if a mesh point using the subthreshold-only mode reselects a more distant parent because its original, closer parent falls below the acceptable threshold, then as long as that mesh point is connected to that more distant parent, it will seek to Default - - - 186| ap mesh-radio-profile Dell Networking W-Series ArubaOS 6.5.x | Reference Guide