A system comprising a requesting component and a memory device, the memory device comprising: a plurality of memory components (24, 26, 28) configured to store data; a buffer; and a processor, wherein the plurality of memory components (24, 26, 28), the buffer and the processor are interconnected by a physical bus, and wherein the processor is configured to execute one or more computer-executable instructions that cause the processor to: while receiving a plurality of packets from a requesting component via a virtual channel and storing them in the buffer, wherein each of the plurality of packets comprises in its payload transaction window information indicative of the type of a memory component in the plurality of memory components (24, 26, 28) that is associated with a respective data operation of the respective packet of the plurality of packets, wherein the plurality of packets corresponds to a plurality of data operations configured to access the plurality of memory components (24, 26, 28), and wherein a transaction window is a virtual channel specifying a set of lanes of the physical bus; monitor an available capacity of the buffer; determine whether the available capacity of the buffer is less than a threshold; and send a message to the requesting component, when the available capacity is less than the threshold, the message comprising instructions for the requesting component to decrease the transmission rate of the plurality of packets, wherein the transaction window information indicative of the type of a memory component is used to manage the flow of packets on the bus by determining a packet order based on latencies associated with the types of memory components. a plurality of memory components (24, 26, 28) configured to store data; a buffer; and a processor, wherein the plurality of memory components (24, 26, 28), the buffer and the processor are interconnected by a physical bus, and wherein the processor is configured to execute one or more computer-executable instructions that cause the processor to: while receiving a plurality of packets from a requesting component via a virtual channel and storing them in the buffer, wherein each of the plurality of packets comprises in its payload transaction window information indicative of the type of a memory component in the plurality of memory components (24, 26, 28) that is associated with a respective data operation of the respective packet of the plurality of packets, wherein the plurality of packets corresponds to a plurality of data operations configured to access the plurality of memory components (24, 26, 28), and wherein a transaction window is a virtual channel specifying a set of lanes of the physical bus; monitor an available capacity of the buffer; determine whether the available capacity of the buffer is less than a threshold; and send a message to the requesting component, when the available capacity is less than the threshold, the message comprising instructions for the requesting component to decrease the transmission rate of the plurality of packets, wherein the transaction window information indicative of the type of a memory component is used to manage the flow of packets on the bus by determining a packet order based on latencies associated with the types of memory components. while receiving a plurality of packets from a requesting component via a virtual channel and storing them in the buffer, wherein each of the plurality of packets comprises in its payload transaction window information indicative of the type of a memory component in the plurality of memory components (24, 26, 28) that is associated with a respective data operation of the respective packet of the plurality of packets, wherein the plurality of packets corresponds to a plurality of data operations configured to access the plurality of memory components (24, 26, 28), and wherein a transaction window is a virtual channel specifying a set of lanes of the physical bus; monitor an available capacity of the buffer; determine whether the available capacity of the buffer is less than a threshold; and send a message to the requesting component, when the available capacity is less than the threshold, the message comprising instructions for the requesting component to decrease the transmission rate of the plurality of packets, wherein the transaction window information indicative of the type of a memory component is used to manage the flow of packets on the bus by determining a packet order based on latencies associated with the types of memory components.