Specifies the 'Excess burst size' of 'single rate three color mode'. The unit is Kbytes. That is to say, 1 means 1kbytes. The set value range is 0..N.The value N is determined by project. A value of -1 indicates that this object is not active.
Sources for this description
D-Link official switch MIBsD-Link MIB copies (LibreNMS/Observium Community)