Method for providing qos differentiation in a multi-tenant network and networking device employing method

A networking device in a multi-tenant network, the networking device comprising:

• a processor;
• and
• a memory for storing at least one computer program, wherein the computer program comprises instructions which are executed by the processor, and performs the following steps:
• receiving a packet;
• identifying a tenant and a priority class associated with the received packet;
• determining a multi-color marker meter based on the identified tenant, wherein the multi-color marker meter comprises a plurality of color markers, and each of the plurality of color markers comprises a compensation credit;
• determining a primary color marker and at least zero subsidiary color marker from the multi-color marker meter based on the identified priority;
• coloring the received packet using the primary color marker and at least zero subsidiary color marker in a prioritized manner;
• and
• determining whether to transmit the received packet based on a color given by the primary color marker and a value of the compensation credit of the primary color marker.