SNMP MAC Address Notifications
October 29, 2008 at 3:08 pm | In System Management | Leave a CommentIEWB1-Vol1-v5 Task: 12.20
Configuration SW1 to send traps when there’re new MAC address on interface connected to R1 and R5
Configuration
Rack1SW1#sh run interface FastEthernet0/1 snmp trap mac-notification change added snmp trap mac-notification change removed interface FastEthernet0/5 snmp trap mac-notification change added snmp trap mac-notification change removed snmp-server enable traps mac-notification change snmp-server host 155.1.146.100 CISCO mac-address-table notification change interval 2 mac-address-table notification change history-size 100 mac-address-table notification change
Verification
Rack1SW1#debug snmp packets SNMP packet debugging is on Rack1R1(config)#int fa0/0 Rack1R1(config-if)#mac-address 0000.6c11.1111 Rack1R1#ping 155.1.146.4 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 155.1.146.4, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms Rack1SW1# *Mar 1 02:28:36.393: SNMP: Queuing packet to 155.1.146.100 *Mar 1 02:28:36.393: SNMP: V1 Trap, ent cmnMIBNotificationPrefix, addr 155.1.67.7, gentrap 6, spectrap 1 cmnHistMacChangedMsg.1 = 01 00 92 00 00 6C 11 11 11 00 03 00 cmnHistTimestamp.1 = 891639 Rack1SW1#sh mac address-table notification change MAC Notification Feature is Enabled on the switch Interval between Notification Traps : 2 secs Number of MAC Addresses Added : 3 Number of MAC Addresses Removed : 3 Number of Notifications sent to NMS : 5 Maximum Number of entries configured in History Table : 100 Current History Table Length : 5 MAC Notification Traps are Enabled History Table contents ---------------------- History Index 1, Entry Timestamp 891639, Despatch Timestamp 891639 MAC Changed Message : Operation: Added Vlan: 146 MAC Addr: 0000.6c11.1111 Dot1dBasePort: 3 History Index 2, Entry Timestamp 921715, Despatch Timestamp 921715 MAC Changed Message : Operation: Deleted Vlan: 146 MAC Addr: 000b.5f76.7280 Dot1dBasePort: 3 History Index 3, Entry Timestamp 942366, Despatch Timestamp 942366 MAC Changed Message : Operation: Added Vlan: 146 MAC Addr: 0000.6c11.0001 Dot1dBasePort: 3 History Index 4, Entry Timestamp 944973, Despatch Timestamp 944973 MAC Changed Message : Operation: Deleted Vlan: 146 MAC Addr: 0000.6c11.1111 Dot1dBasePort: 3 Operation: Deleted Vlan: 146 MAC Addr: 0000.6c11.0001 Dot1dBasePort: 3 History Index 5, Entry Timestamp 945174, Despatch Timestamp 945174 MAC Changed Message : Operation: Added Vlan: 146 MAC Addr: 0000.6c11.0001 Dot1dBasePort: 3
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