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This article describes how to create an email alert using Syslog Viewer when switch ports get shut down due to a MAC address violation.
ERROR: %SPANTREE-2-BLOCK_BPDUGUARD: Received BPDU on port FastEthernet2/17 with BPDU Guard enabled. Disabling port. SEVERITY: Critical
HOST: 10.10.100.1 ERROR: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0009.be0d.18e7 on port FastEthernet4/8. Orion QuickLink: http://Orion/NetPerfMon/Resources/Se...tr=10.10.100.1
"%IP-4-DUPADDR: Duplicate address 172.31.28.179 on Ethernet0, sourced by 001a.8cb9.46a5"
ERROR: %RTD-1-LINK_FLAP: FastEthernet0/9 link down/up 6 times per min SEVERITY: Alert
ERROR: Jul 16 21:16:37 PDST: loopback error detected on Fa0/1, putting Fa0/1 in err-disable state
For more information, refer to BASIC OR ADVANCED ALERT FOR 'ERRDISABLED' PORTS?