Granted Patent B2

US 9,154,413 · App. 13/529,821 · Granted Oct 6, 2015

Abstract

Claims (39)

1. A method of processing network traffic within a computing system, comprising:

at a first configurable logic device (CLD):

receiving an ingress network packet from an external network interface;

associating the ingress network packet with a timestamp indicating a time of receipt;

parsing the ingress network packet to locate a link-layer checksum value and a routing-layer checksum value;

determining whether the link-layer and routing-layer checksum values are correct based on the ingress network packet contents; and

transmitting the ingress network packet to a second CLD via a high-speed interconnection; and

at the second CLD:

receiving the ingress network packet;

parsing the ingress network packet to locate a source address and a destination address;

determining a destination and a route for the ingress network packet based at least in part on the source and destination addresses; and

transmitting the ingress network packet to the determined destination via the determined route.

2. The method of claim 1 , wherein the first and second CLDs are both field programmable gate arrays.

3. A tangible, non-transitory computer-readable media comprising:

a first configuration file that when loaded by a first configurable logic device (CLD) configures the first CLD to:

receive an ingress network packet from an external network interface;

associate the ingress network packet with a timestamp indicating a time of receipt;

parse the ingress network packet to locate a link-layer checksum value and a routing-layer checksum value;

determine whether the link-layer and routing-layer checksum values are correct based on the ingress network packet contents; and

transmit the ingress network packet to a second CLD via a high-speed interconnection; and

a second configuration file that when loaded by a second CLD configures the second CLD to:

receive the ingress network packet;

parse the ingress network packet to locate a source address and a destination address;

determine a destination and a route for the ingress network packet based at least in part on the source and destination addresses; and

transmit the ingress network packet to the determined destination via the determined route.

4. The media of claim 3 , wherein the first and second CLDs are field programmable gate arrays.

5. A computing system comprising:

a first configurable logic device (CLD) configured to:

receive an ingress network packet from an external network interface;

associate the ingress network packet with a timestamp indicating a time of receipt;

parse the ingress network packet to locate a link-layer checksum value and a routing-layer checksum value;

determine whether the link-layer and routing-layer checksum values are correct based on the ingress network packet contents; and

transmit the ingress network packet to a second CLD via a high-speed interconnection; and

a second CLD on a same card configured to:

receive the ingress network packet;

parse the ingress network packet to locate a source address and a destination address;

determine a destination and a route for the ingress network packet based at least in part on the source and destination addresses; and

transmit the ingress network packet to the determined destination via the determined route.

6. The system of claim 5 , wherein the first and second CLDs are field programmable gate arrays.

Assignments (6)