HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 126

Multiple Instance Spanning-Tree Operation Configuring MSTP Syntax: [no] spanning-tree < port-list > auto-edge-port Supports the automatic identification of edge ports. The port will look for BPDUs for 3 seconds; if there are none it begins forwarding packets. If admin-edge-port is enabled for a port, the setting for auto-edge-port is ignored whether set to yes or no. If admin-edge-port is set to No, and autoedge-port has not been disabled (set to No), then the autoedge-port setting controls the behavior of the port. (Default: Yes - enabled) The no spanning-tree < port-list > auto-edge-port command disables auto-edge-port operation on the specified ports. Syntax: spanning-tree < port-list > hello-time < global | 1 - 10 > When the switch is the CIST root, this parameter specifies the interval (in seconds) between periodic BPDU transmissions by the designated ports. This interval also applies to all ports in all switches downstream from each port in the < port-list >. A setting of global indicates that the ports in < port-list > on the CIST root are using the value set by the global spanning-tree hello-time value (page 4-23). When a given switch "X" is not the CIST root, the per-port hello-time for all active ports on switch "X" is propagated from the CIST root, and is the same as the hello-time in use on the CIST root port in the currently active path from switch "X" to the CIST root. (That is, when switch "X" is not the CIST root, then the upstream CIST root's port hellotime setting overrides the hello-time setting configured on switch "X"). (Default Per-Port setting: Use Global. Default Global Hello-Time: 2.) Syntax: spanning-tree < port-list > mcheck Forces a port to send RST/MST BPDUs for 3 seconds. This tests whether all STP bridges on the attached LAN have been removed and the port can migrate to native MSTP mode and use RST/MST BPDUs for transmission. 4-27