Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 240

Supported Releases 10.2.0E or later spanning-tree vlan priority Sets the priority value for RPVST+. Syntax Parameters Default Command Mode Usage Information Example spanning-tree vlan vlan-id priority priority value priority priority value - Enter a bridge-priority value in increments of 4096 (0 to 61440). Valid priority values are: 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 32768, 36864, 40960, 45056, 49152, 53248, 57344, and 61440. All other values are rejected. Not configured CONFIGURATION The RPVST+ protocol determines the root bridge but you can assign one bridge a lower priority to increase the probability it being the root bridge. A lower priority value increases the probability of the bridge becoming a root bridge. OS10(config)# spanning-tree vlan 10 priority 0 Supported Releases 10.2.0E or later spanning-tree vlan priority (Interface) Sets an interface priority when two bridges compete for position as the root bridge. Syntax spanning-tree vlan vlan-id priority value Parameters value - Enter a priority value in the increments of 16 (0 to 240). Default 128 Command Mode INTERFACE Usage Information Breaks the tie between the two bridges which compete for root bridge. Example OS10(conf-if-eth1/1/4)# spanning-tree vlan 10 priority 16 Supported Releases 10.2.0E or later spanning-tree vlan root Designates a device as primary or secondary root bridge. Syntax Parameters spanning-tree vlan vlan-id root {primary | secondary} • vlan-id - Enter a VLAN ID number (1 to 4093). • root - Designate the bridge as primary or secondary root. • primary - Designate the bridge as primary or root bridge. • secondary - Designate the bridge as secondary or secondary root bridge. Default Command Mode Not configured CONFIGURATION 240 Layer 2