Cluster accelerator network interface with filter

• US 7,373,430 B2
• Filed: 12/24/2003
• Issued: 05/13/2008
• Est. Priority Date: 12/24/2003
• Status: Expired due to Fees

• Current Assignee: Check Point Software Technologies Incorporated (Check Point Software Technologies Limited)
• Original Assignee: Nokia Corporation
• Inventors: Williams, Michael G.
• Primary Examiner(s): VU, VIET DUY
• Application Number:
  US10/746,315
• Publication Number:
  US 20050188114A1
• Time in Patent Office: 1,602 Days
• Field of Search: 709/230, 709/238, 709/245, 709/249, 709/250
• US Class Current: 709/250
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers

Abstract

An apparatus for improving communication between network devices in a cluster. is provided. A filter is used to pre-process packets to determine if they need to be further processed by the processor of the network device. If true, the packets are presented on a bus either in real time or buffered and presented at time intervals. A synch component is used to pre-process packets to determine if they are associated with synchronization information, management information, filter configuration information.

Claims

1. A network device, comprising:

a processor coupled to a bus; and

a network component that is configured to receive and transmit packets over the network, the network component includes

a filter component that pre-processes each received packet to determine if each received packet is associated with the network device,

wherein each received packet that is associated with the network device is provided on the bus for further processing by the processor,

wherein the network device is a member of a cluster of network devices on a network,

wherein the network component includes a synch component for pre-processing received packets to determine if the received packet includes management information associated with the cluster of network devices, wherein each such received packet is provided on the bus for further processing by the processor, and

wherein the network component includes a synch component that enables the updating of a configuration of the filter based on at least one of cluster membership and load.

2. The network device of claim 1, wherein

the network component further includes at least one of a network interface, a Network Interface Card (NIC) and a network processor.

3. The network device of claim 1, wherein

the filter component is further configured to reject each received packet that is unassociated with the network device.

4. The network device of claim 1, wherein

the network component further includes a network processor for processing the communication of each packet for the network device over the network.

5. The network device of claim 4, wherein the configuration of the filter component and the network processor are integrated.

6. The network device of claim 1, wherein

the network component is further configured to:

buffer the received packets that are associated with the network device, and

provide the buffered packets to the bus at intervals of time.

7. The network device of claim 1, wherein

the filter component pre-processes the packet prior to generating an interrupt to indicate that the packet is provided on the bus for processing by the processor.

9. The network device of claim 1, wherein the filter comprises at least one of:

a field-programmable gate array, an application-specific integrated circuit, a complex programmable logic device, a programmable logic array, and a read-only memory.

11. The network device of claim 1, further comprising a synch component that performs actions, including:

if the packet is associated with synchronization information for the cluster of network devices, providing the packet on the bus; and

if the packet is associated with filter information, enabling the filter to be configured in accordance with the filter information.

12. The network device of claim 1, wherein

the filter is coupled to a first port in communication with the network, and

the synch component is coupled to a second port in communication with the network.

8. A network device, comprising:

a processor coupled to a bus; and

a network component that is configured to receive and transmit packets over the network, the network component includes

a filter component that pre-processes each received packet to determine if each received packet is associated with the network device,

wherein each received packet that is associated with the network device is provided on the bus for further processing by the processor,

wherein the network device is a member of a cluster of network devices on a network, and

wherein the determination for each packet'"'"'s association with the network device includes determining at least one of;

if the received packet was broadcast to every network device on the network;

if the received packet was multicast to every network device in the cluster;

if the received packet was unicast to the network device;

if the received packet is part of a load for processing by the network device; and

if the packet is associated with management of the cluster of network devices.

10. A network component that is configured to receive and transmit packets for a network device on a network, comprising:

a filter component that pre-processes each received packet to determine if each received packet is associated with the network device,

wherein each received packet that is associated with the network device is provided on a bus for further processing by a processor, and

wherein the network device is a member of a cluster of network devices on the network; and

a synch component for pre-processing packets to determine if the received packet includes configuration information regarding the filter, wherein the synch component enables the configuration information to be employed to update a configuration of the filter.

13. The network component of claim 10, further includes at least one of a network interface, a Network Interface Card (NIC) and a network processor.

14. The network component of claim 10, wherein the filter component is further configured to reject each received packet that is unassociated with the network device.

15. The network component of claim 10 wherein the network component is further configured to:

buffer the received packets that are associated with the network device; and

provide the buffered packets to the bus at intervals of time.

16. The network component of claim 10, wherein

the filter component pre-processes the packet prior to generating an interrupt to indicate that the packet is provided on the bus for processing by the processor.

18. The network component of claim 10, further includes a synch component for pre-processing received packets to determine if the received packet includes information associated with the management of the cluster of network devices, wherein each received packet that is associated with management information is provided on the bus for further processing by the processor.

19. The network component of claim 10 further comprising a synch component that performs actions, including if the packet is associated with synchronization information for the cluster of network devices, providing the packet on the bus.

20. The network component of claim 10, further comprising:

a first tap in communication with the network, wherein the first tap is coupled to the filter, and

a second tap in communication with the network, wherein the second tap is coupled to a synch component.

17. A network component that is configured to receive and transmit packets for a network device on a network, comprising:

a filter component that pre-processes each received packet to determine if each received packet is associated with the network device,

wherein each received packet that is associated with the network device is provided on a bus for further processing by a processor,

wherein the network device is a member of a cluster of network devices on the network, and

wherein the determination for each packet'"'"'s association with the network device includes determining at least one of;

if the received packet was broadcast to every network device on the network;

if the received packet was multicast to every network device in the cluster;

if the received packet was unicast to the network device;

if the received packet is part of a load for processing by the network device; and

if the packet is associated with management of the cluster of network devices.

21. A method for improving communication over a network, comprising:

employing a filter component to pre-processes each of one or more received packets to determine if each received packet is associated with a network device,

wherein each received packet that is associated with the network device is provided on a bus for further processing by a processor, and

wherein the network device is a member of a cluster of network devices on the network; and

employing a synch component for pre-processing packets to determine if the received packet includes configuration information regarding the filter, wherein the synch component enables the configuration information to be employed to update a configuration of the filter.

22. The method of claim 21, wherein the received packet is pre-processed to determine if an interrupt is to be generated, wherein the interrupt indicates that the received packet is to be further processed by the network device.

23. The method of claim 21, further comprising:

buffering the packet; and

if it is decided that the packet is to be presented on the bus;

providing the packet as part of a group of other packets that are provided for further processing.

24. An apparatus for enabling communication for a network device, comprising:

filter means for pre-processing each of one or more received packets to determine if each received packet is associated with the network device,

wherein each received packet that is associated with the network device is provided on a bus for further processing by a processor, and

wherein the network device is a member of a cluster of network devices on the network; and

synch means for pre-processing packets to determine if the received packet includes configuration information regarding the filter, wherein the synch means enables the configuration information to be employed to update a configuration of the filter.