https://community.extremenetworks.com/t5/extremeswitching-exos-switch/snmp-sysuptime/m-p/46653#M11839 So ,snmp counter is overflowed after ~ 497 days. How to deal with this ?<BR /> <BR /> snmpwalk -v 2c -c XXXXXX sw2.g50.kv 1.3.6.1.2.1.1.3<BR /> DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (56035204) 6 days, 11:39:12.04<BR /> <BR /> sw2.g50.kv.7 # show version | i ImageImage : ExtremeXOS version 15.3.1.4 v1531b4-patch1-31 by release-manager<BR /> sw2.g50.kv.8 # show switch | i UpTime<BR /> System UpTime: 503 days 14 hours 8 minutes 47 seconds <BR /> Thu, 06 Aug 2015 18:41:00 GMT AlexanderT 2015-08-06T18:41:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/snmp-sysuptime/m-p/46653#M11839 So ,snmp counter is overflowed after ~ 497 days. How to deal with this ?<BR /> <BR /> snmpwalk -v 2c -c XXXXXX sw2.g50.kv 1.3.6.1.2.1.1.3<BR /> DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (56035204) 6 days, 11:39:12.04<BR /> <BR /> sw2.g50.kv.7 # show version | i ImageImage : ExtremeXOS version 15.3.1.4 v1531b4-patch1-31 by release-manager<BR /> sw2.g50.kv.8 # show switch | i UpTime<BR /> System UpTime: 503 days 14 hours 8 minutes 47 seconds <BR /> Thu, 06 Aug 2015 18:41:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/snmp-sysuptime/m-p/46653#M11839 AlexanderT 2015-08-06T18:41:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/snmp-sysuptime/m-p/46654#M11840 Pavel, as per the MIB definition, the sysUpTime object is a 32-bit number. The elapsed time is represented as number of TimeTicks i.e. 1/100the of a second. So, it will wraparound after 497 days. <BR /> <BR /> Given 2^32-1 = 42949672 (seconds), divide by 86,400 (seconds in a day) = 497 days<BR /> <BR /> There appears to be no workaround to this and it is designed per RFC1213.<BR /> <BR /> You might be able to poll snmpEngineTime (1.3.6.1.6.3.10.2.1.3) for the uptime of the SNMP process, however this may not be as accurate. However a 'show switch' output will always work. <BR /> Thu, 06 Aug 2015 23:27:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/snmp-sysuptime/m-p/46654#M11840 Ty_Izzet 2015-08-06T23:27:00Z