gtm sycn group joined or left snmp

[root@f5-g:Active] config snmpwalk -v 2c -c public localhost 1.3.6.1.4.1.3375.2.4.0.73 F5-BIGIP-COMMON-MIB::bigipGtmJoinedGroup = No Such Object available on this agent at this OID

this is right or not!hope someone can reply this question?tks