Circuit and method for supporting multicast/broadcast...

Details Circuit and method for supporting multicast/broadcast... Circuit and method for supporting multicast/broadcast...

1999-07-02

2003-06-24

Gaffin, Jeffrey (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C710S033000, C370S230000

Reexamination Certificate

active

06584517

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to multi-queue storage devices generally and, more particularly, to a circuit and method for supporting multicast/broadcast operations in multi-queue storage devices.
BACKGROUND OF THE INVENTION
Communication devices may use storage devices to store information that is transferred between devices operating at different speeds. Such communication devices may provide multicast and broadcast functions.
Referring to
FIG. 1
, a block diagram of a conventional communications device
10
is shown. The communications device
10
comprises a port
12
and a switch fabric
14
. The port
12
comprises a packet storage device
15
, a packet classifier
16
, a queue manager
18
and a scheduler
20
. A number of management buses
22
a
-
22
n
transfer management information between the packet classifier
16
, the queue manager
18
and the scheduler
20
. A number of data buses
23
a
-
23
n
transfer data between the packet classifier
16
, the queue manager
18
and the packet storage device
15
. The management bus
22
n
is generally required to connect the packet classifier
16
to the scheduler
20
.
SUMMARY OF THE INVENTION
The present invention concerns a circuit comprising a memory and a control circuit. The memory may be configured to (i) hold one or more packets of information and (ii) send the held packets of information in response to one or more control signals. The control circuit may be configured to generate the one or more control signals.
The objects, features and advantages of the present invention include providing a device that may (i) provide multicast operations, (ii) broadcast operations and/or (iii) independent multicast/broadcast operations.


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