Netgear XSM4324FS CLI Manual Software Version 12.x - Page 382

M4300 Intelligent Edge Series Fully Managed Stackable Switches no spanning-tree This command sets the spanning-tree operational mode to disabled. While disabled, the spanning-tree configuration is retained and can be changed, but is not activated. Format Mode no spanning-tree Global Config spanning-tree auto-edge Use this command to allow the interface to become an edge port if it does not receive any BPDUs within a given amount of time. Default Format Mode Enabled spanning-tree auto-edge Interface Config no spanning-tree auto-edge This command resets the auto-edge status of the port to the default value. Format Mode no spanning-tree auto-edge Interface Config spanning-tree backbonefast Use this command to enable the detection of indirect link failures and accelerate spanning tree convergence on PVSTP configured switches. Backbonefast accelerates finding an alternate path when an indirect link to the root port goes down. Backbonefast can be configured even if the switch is configured for MST(RSTP) or PVST mode. It only has an effect when the switch is configured for the PVST mode. If a backbonefast-enabled switch receives an inferior BPDU from its designated switch on a root or blocked port, it sets the maximum aging time on the interfaces on which it received the inferior BPDU if there are alternate paths to the designated switch. This allows a blocked port to immediately move to the listening state where the port can be transitioned to the forwarding state in the normal manner. On receipt of an inferior BPDU from a designated bridge, backbonefast enabled switches send a Root Link Query (RLQ) request to all non-designated ports except the port from which it received the inferior BPDU. This check validates that the switch can receive packets from the root on ports where it expects to receive BPDUs. The port from which the original inferior BPDU was received is excluded because it has already encountered a failure. Designated ports are excluded as they do not lead to the root. Switching Commands 382 CLI Command Reference Manual