Understanding the Spectrum attributes sysUpTime (0x10245) and snmpEngineBoots (0x230c52)

Products

• Spectrum
• Network Observability

Issue/Introduction

Understanding the Spectrum attributes sysUpTime (0x10245) and  snmpEngineBoots (0x230c52)

Environment

Release: Any
Component:

Resolution

The sysUpTime (0x10245)  attribute can be used to check how long a device has been up and along with the snmpEngineBoots (0x230c52) attribute.
 
They can also be used to see if a device is rebooted. If either of these values are less than the value from the previous SNMP Poll, Spectrum will create a reboot alarm.

SysUpTime should never be negative and is a vendor issue that should be reported to them if it is seen to be negative.

If modeled in SNMPv1, it is possible that the SysUpTime counter will wrap, but it should never be negative.

SysUpTime is a 32-bit value, so once the system has been up for 1 year, 132 days, 2 hours, 27 minutes and 52.96 seconds the value will roll to 0 again.