SNMP Traps 85System Failure is also indicated by a yellow Power/Self Test/System FaultLED on the front panel of the Webcache; for more information, see the“Introducing the Webcache” chapter on page 17. A cache storage device has failed.9 Click OK.SNMP Traps You can configure the Webcache to automatically generate SimpleNetwork Management Protocol (SNMP) traps when certain significantsystem events occur. An SNMP trap is a message generated by theWebcache in response to a particular event. It is sent to a specifiednetwork management station in your network which receives and filtersit. You can configure the network management station to log thegenerated traps, filter out the traps that you are not interested in andissue event notifications. The structure and content of the SNMP traps aredefined in the Management Information Bases (MIBs) that the Webcachesupports.The Webcache supports the following MIB-2 (standard MIB) andWebcache MIB traps:Table 11 SNMP TrapsSNMP Trap DescriptionCold Start The Webcache is reinitailizing itself such that its systemconfiguration may be altered.Login Failed The admin user has failed to login to the Webcache, or auser name other than admin has been entered.Upgrade CompletedSuccessfullyA Software Upgrade has been successfully completed onthe Webcache.Upgrade Failed A Software Upgrade has failed on the Webcache.New Image Detected The Webcache has detected and downloaded a newsoftware version that you can choose to upgrade to. Thetrap indicates the current software version on theWebcache and the software version that has beendownloaded.Image Detection ServerUnavailableThe FTP site that the Webcache automatically detects anddownloads software upgrades from is unavailable. Youcan use the Upgrade Settings screen to change the FTPsite. For more information, see the “Software Upgradeand Installation” chapter on page 83.(continued)
