I have a couple Stacked Summit X250/X450 and I'm having trouble using the extremeStackMemberTable SNMP table. The OS version of these are 220.127.116.11. I am seeing the extremeStackMemberEntPhysicalIndex column returning as zero for all stack members of these stacks. This causes the various tools I use to not be able to link into the entPhysicalTable to gather serial numbers and os versions.
Is this a known issue or expected behaviour? If not, is there another way of making these associations of stack members to their respective data?