Methods and apparatus for dynamically allocating bandwidth between ATM cells and packets
View Patent ↗A method for dynamically allocating bandwidth among ATM cells and packets scheduled for output from an aggregation multiplexer of a transport-layer device configured to multiplex both ATM cells and packets onto the same channel of an optical fiber. The method includes local control and relative priority lookup of incoming ATM cells and packets to support output decision. When compared to currently employed methods, the required level of coordination with the receiving circuit for dynamic bandwidth allocation is substantially lower, thereby reducing operational complexity for network operators and latency for critical data when reallocating bandwidth.
1. A method, comprising:
transmitting a first flag followed by an ATM cell, wherein the ATM cell and the first flag are transmitted as a first part of a single wireless protocol frame, the first flag delineating a start of the ATM cell in the frame; and
transmitting a second flag identical to the first flag followed by a packet, wherein the second flag and the packet are transmitted as a second part of the single wireless protocol frame, the second flag separating the packet from the ATM cell and delineating a start of the packet in the frame.
2. The method of claim 1 , further comprising:
receiving the wireless protocol frame and using the first flag to identify the ATM cell and using the second flag to identify the packet.
3. The method of claim 1 , wherein the second hag is a packet-over-SONET flag, and wherein the frame is a SONET frame.
4. The method of claim 1 , wherein the first flag is a packet-over-SONET flag, and wherein the frame is a SONET frame.
5. The method of claim 1 , wherein the first flag and the second flag are used by a receiver to discriminate ATM cells from packets.