Local memory buffers management for an ATM adapter implementing credit based flow control
AssigneeDigital Equipment Corporation
InventorsMichael Ben-Nun, Simoni Ben-Michael, Simcha Perl, Kadangode K. Ramakrishnan
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Abstract
An Asynchronous Transfer Mode (ATM) network device having a receiver portion capable of receiving ATM cells on one of a number of virtual circuits (VCs) from an upstream ATM switch, a local memory used to store the ATM cells, a management system to manage the local memory using a number of queues, a system for assembling ATM cells into packets, a system for transmitting the packets to a host memory, and a transmitter portion having a system for indicating the transmitting of packets to the host memory to the upstream ATM switch.
Claims26
An asynchronous transfer mode (ATM) network device comprising:
- a receiver portion, said receiver portion capable of receiving a plurality of ATM cells on one of a plurality of virtual circuits (VCs) from an upstream ATM switch;
- a local memory, said local memory used to store the plurality of ATM cells;
- means for managing said local memory using a plurality of queues;
- means for assembling ATM cells into a plurality of packets;
- means for transmitting said plurality of packets to a host memory;
- and
- a transmitter portion, said transmitter portion having a means for indicating said transmitting of said packets from said local memory to said host memory to said upstream ATM switch.
Dependencies are inferred from the claim text.