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receiving linkup/linkdown messages without configuring snmp traps for them

By vineet.sheoran ·
Hi,

I have an unusual problem at work were our syslog server is getting thousands of linkup/linkdown messages from Cisco 2950 and Cisco 3560 switches we have on the network. The unusual part is we have not configured the switches to send traps for linkup/linkdown messages.

The 2950 switches are running c2950-i6k2l2q4-mz.121-22.EA8a.bin IOS image.

The 3560 switches are running c3560-ipbasek9-mz.122-37.SE.bin IOS image.

We have standard network templates we follow so the configuration is the same for all switches and it follow as:
!
logging source-interface Vlan a
logging b.b.b.b
access-list 90 permit b.b.b.b 0.0.0.15
snmp-server community ccccc RO 90
snmp-server trap-source Vlan a
snmp-server contact ddddd
snmp-server enable traps snmp authentication coldstart
snmp-server enable traps vtp
snmp-server enable traps port-security
snmp-server enable traps envmon fan shutdown supply temperature status
snmp-server enable traps config
snmp-server enable traps bridge newroot topologychange
snmp-server enable traps stpx inconsistency root-inconsistency loop-inconsistency
snmp-server host b.b.b.b ccccc
snmp ifmib ifindex persist


Any suggestions and/or ideas anyone can give will be greatly appreciated.

Thanks,
Vineet

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