Tellabs Operations, Inc.

Viasat, Inc.

Somnath Mani

Pawan Uberoy

Sebastian Sapa

Duncan Stuart Ritchie

Praveen Madhav

Chakravarthi S Chigurapati

A process and/or apparatus capable of facilitating network communication via a directly accessible network interface controller ('NIC') in a virtualized environment is disclosed. The process, in some embodiments, is able to receive a packet stream traveling from a virtual machine ('VM') to a direct-access configured NIC (&#x201c;DCN&#x201d;). After forwarding from an embedded switch (&#x201c;eSwitch&#x201d;) of the DCN to a virtual switch (&#x201c;vSwitch&#x201d;) residing in a hypervisor or VM monitor in accordance with at least a portion of content of the packet stream, a processed packet stream is generated by the hypervisor in response to the packet stream. The processed packet stream is subsequently transmitted from the vSwitch to the eSwitch for facilitating the processed packet stream to reach its destination.

Methods and apparatus for enhancing virtual switch capabilities in a direct-access configured network interface card

A method and/or network system is able to perform an in-service software upgrade ('ISSU') using virtualization technology while ongoing network service is maintained. After receipt of an upgrade signal such as a command of software upgrade, a new or second virtual machine ('VM') is created in response to the upgrade signal. After downloading the new version of program to the second VM while maintaining the first version of program running on the first VM, the process for providing network management begins to migrate from the first version of program to the new version of program. The process simultaneously facilitates ISSU for a data-path module such as a line card to convert from the previous version of software to the new version of the software.

Methods and apparatus for performing in-service software upgrading for a network device using system virtualization

Methods and apparatus for performing in-service software upgrade for a network device using system virtulization

Methods and apparatus for performing in-service software upgrade for a network device using system virtualization

Growing community of inventors

Santa Clara, CA, United States of America

Somnath Mani