Hi. It's work for bonding wan interfaces, but not work for lan bonding interfaces.
On lan interfaces many vlans. May be it is reason?
snmpwalk -c public -v2c 172.16.200.202 .1.3.6.1.2.1.1.3.0
iso.3.6.1.2.1.1.3.0 = Timeticks: (1711243103) 198 days, 1:27:11.03