ZyXEL ES-4124 User Guide - Page 396
no Command Examples
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Chapter 47 Configuration Mode Commands forward-delay pathcost priority treeIndex = Specifies the maximum time (in seconds) the Switch will wait before changing states. This delay is required because every Switch must receive information about topology changes before it starts to forward frames. In addition, each port needs time to listen for conflicting information that would make it return to a blocking state; otherwise, temporary data loops might result. = Enables STP on the specified ports. Specifies the cost of transmitting a frame on to a LAN through that port. It is assigned according to the speed of the bridge. = Specifies the priority for each port. Priority decides which port should be disabled when more than one port forms a loop in a Switch. Ports with a higher priority numeric value are disabled first. = Specifies which STP configuration these ports will participate in. (mrstp command only). An example using spanning-tree command is shown next. • Enable STP on the Switch. • Set the bridge priority of the Switch to 0. • Set the Hello Time to 4, Maximum Age to 20 and Forward Delay to 15 on the Switch. • Enable STP on port 5 with a path cost of 150. • Set the priority for port 5 to 20. sysname(config)# spanning-tree priority 0 sysname(config)# spanning-tree hello-time 4 maximum-age 20 forward-delay 15 sysname(config)# spanning-tree 5 path-cost 150 sysname(config)# spanning-tree 5 priority 20 47.4 no Command Examples These are the commonly used command examples that belong to the no group of commands. The no group commands are commands which are preceded by keyword no. This command negates the intended action of the command. In most cases the no command disables, resets or clears settings. There are cases, however, where the no command can activate features. This section shows some uses of these commands. 47.4.1 Disable Commands Use the no command to disable features on the Switch. Syntax: no spanning-tree no mirror-port Disables STP on the Switch. 396 ES-4124 User's Guide