Reference Guide

Rapid Spanning Tree Protocol (RSTP) | 769
Figure 43-8. bridge-priority Command Example
SNMP Traps for Root Elections and Topology Changes
Enable SNMP traps for RSTP, MSTP, and PVST+ collectively using the command snmp-server enable traps
xstp
.
Dell(conf-rstp)#bridge-priority 4096
04:27:59: %STKUNITO-M:CP %SPANMGR-5-STP_ROOT_CHANGE: RSTP root changed. My Bridge ID:
4096:0001.e80b.88bd Old Root: 32768:0001.e801.cbb4 New Root: 4096:0001.e80b.88bd
New root bridge ID
Old root bridge ID