The size of the PRI buffer pool. This determines the maximum number of buffers that can exist at once for the PRI pool. DC-EVPN Manager does not use pre-allocated pools, so the maximum number of buffers is also limited by memory availability, and so this number does not relate directly to memory usage. Buffer pools provide flow control, which is useful in ensuring efficient operation of the overall system. This field is not suitable for network administrators. This field cannot be changed after initial creation of the entity. Instead of changing this field, create a new DC-EVPN Manager entity with the new value and destroy the old entity.