sysUpTime shows the time when the snmp agent is enabled and not the system time.

rodrigoybf · April 5, 2023, 4:53pm

  leaf sysUpTime {
    type yang:timeticks;

cohult · April 5, 2023, 8:35pm

github.com

YangModels/yang/blob/main/vendor/cisco/xe/1791/MIBS/SNMPv2-MIB.yang#L123


      
              subtree (1.3.6.1.4.1) and provides an easy and
              unambiguous means for determining `what kind of box' is
              being managed.  For example, if vendor `Flintstones,
              Inc.' was assigned the subtree 1.3.6.1.4.1.424242,
              it could assign the identifier 1.3.6.1.4.1.424242.1.1
              to its `Fred Router'.";
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.1.2";
          }
          
          
leaf sysUpTime {
            type yang:timeticks;
            description
             "The time (in hundredths of a second) since the
              network management portion of the system was last
              re-initialized.";
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.1.3";
          }
          
          
leaf sysContact {

gczilio · April 5, 2023, 8:55pm

But can we change this configuration in order to appear the equipment sysUpTime and not only the SNMP uptime?

cohult · April 6, 2023, 7:12am

      leaf sysUpTime {
        type yang:timeticks;
        description
         "The time (in hundredths of a second) since the
          network management portion of the system was last
          re-initialized.";
        smiv2:max-access "read-only";
        smiv2:oid "1.3.6.1.2.1.1.3";
      }

sysUpTime is read-only “config false” status data (not configurable). And, it is unlikely that the equipment you refer to has some proprietary config elsewhere to change the behavior.
However, that is a question for the forum of the equipment.

cohult · April 6, 2023, 8:02am

Also note that the YANG model and the described behavior of the sysUpTime YANG leaf originates from a standard IETF RFC SNMP MIB. RFC 3418: Management Information Base (MIB) for the Simple Network Management Protocol (SNMP)