Broadcom Corporation

Pure Storage, Inc.

Curtis Scranton McDowell

Daniel Talayco

Prabhath Sajeepa

Qing Yang

A method for network communication is provided. The method includes assigning a first network port identifier for return communication to a packet that originates on a node of the network device and determining whether the packet has a destination internal or external to the network device. The method includes translating the first network port identifier for return communication to a second network port identifier that is within a range of network port identifiers specific to the node, responsive to determining the packet has the external destination, and sending the packet from the node of the network device to the external destination, with the packet having the second network port identifier for return communication.

Efficient data forwarding in a networked device

A method for efficient data forwarding in a networked device is provided. The method includes receiving a first packet from a first VLAN into a load balancer of the networked device and forwarding the first packet from the load balancer to a second VLAN internal to the networked device, wherein an identity of the first VLAN is unknown as a result of forwarding the packet from the first VLAN to the second VLAN. The method includes determining the identity of the first VLAN, based on a source IP address of the first packet and a map of IP addresses and VLANs. The method includes sending a second packet from one of a plurality of nodes, in response to the receiving, with the source IP address of the first packet as a destination IP address of the second packet and with a field of the second packet identifying the first VLAN.

The invention provides a system and method for updating software in the CPU of a network device without interrupting the operation of the network device. The invention determines whether operating state information is recoverable. If it is not recoverable, then it will be stored in a metadata module or reload buffer. When the CPU is rebooted, after a software update or crash, it operates in a special reload mode and is able to recover any system state information not available in the network device from the metadata module.

Growing community of inventors

Mountain View, CA, United States of America

Curtis Scranton McDowell