It’s a shot in the dark, but I’m wondering if anyone has experience with DZS OLTs and getting Libre to NOT poll anything relating to ONTs.
DZS OLTs, like a lot of access network gear, simply doesn’t have the CPU power to handle querying everything. I just got this from my SE.
Limit the MIBs to those that are absolutely needed: uplink interfaces, temperatures, other environmental and chassis data. Eliminate ONUs and ONTs to minimize the number of data points that are being requested each polling interval. This is actually a practice that should be considered as “normal”.
I will go through modules and turn off ones I wouldn’t need, but there isn’t one for ONUs or ONTs, so it’s not likely to make a significant impact.