VegaStream has some very nice ATAs and T38 devices (still), but after the upgrade to VEGA400_R082S017 (8.2.17) every two and a half day their system.sysUptime counter gets resetted:
> Host : sjh-vega400 > Output: Uptime is less than an hour! (328.61 seconds) > Date : 2008-02-28 14:21:08
According to Nagios, this happens every two and a half days:
The device doesn't reboot, the sysUpTime count just goes back to zero. Device itself says it's up for 9 days.
About 2 days, 11 hours, 37 minutes, 62 seconds.
Thanks to callum on irc.oz.org/#bugs : 2 ^ 31 / 10,000, or an overflow of the signed counter of the number of 100 microseconds.
[~/snmp] root@lizard>snmpwalk -v 1 -c public test-vega RFC1213-MIB::sysDescr.0 = STRING: "Vegastream IP Telephony Gateway (VEGA-6x4)" RFC1213-MIB::sysObjectID.0 = OID: RFC1155-SMI::enterprises.4686.11 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (305772277) 35 days, 9:22:02.77 RFC1213-MIB::ifNumber.0 = INTEGER: 2 RFC1213-MIB::ifIndex.1 = INTEGER: 1 RFC1213-MIB::ifIndex.2 = INTEGER: 2 RFC1213-MIB::ifDescr.1 = STRING: "VS LAN Port 1" RFC1213-MIB::ifDescr.2 = STRING: "VS LAN Port 2" RFC1213-MIB::ifType.1 = INTEGER: ethernet-csmacd(6) RFC1213-MIB::ifType.2 = INTEGER: ethernet-csmacd(6) RFC1213-MIB::ifMtu.1 = INTEGER: 1514 RFC1213-MIB::ifMtu.2 = INTEGER: 1514 RFC1213-MIB::ifSpeed.1 = Gauge32: 104857600 RFC1213-MIB::ifSpeed.2 = Gauge32: 10485760
104857600 is 100 * 1024 * 1024, or their idea of an 100 Mbps ethernet.