Jeffrey M Jensen

US Patent:

7987289, Jul 26, 2011

Filed:

Jun 24, 2008

Appl. No.:

12/144693

Inventors:

Kevin Mason - Kirkland WA, US
Jeffrey Paul Jensen - San Jose CA, US
Robert Pike - Woodinville WA, US
Albert Greenberg - Seattle WA, US
Parantap Lahiri - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 15/173
G01R 31/08

US Classification:

709242, 709223, 709225, 709238, 709243, 370230, 370351

Abstract:

A Totally Stubby Edge (TSE) participates in a cloud under the condition that the TSE may select paths for frames that the TSE introduces to the cloud, but may not transit frames between nodes in the cloud. The edge submits, to an administrator of the cloud, a request to join the cloud. If the administrator allows the request, then the edge is given access to the address tables that define the structure of the cloud, and may insert itself into the structure. The edge may use the address tables to select paths for frames that the edge introduces to the cloud. Normally path decisions are made by devices that the administrator trusts and controls. However, since the TSE selects paths for its own frames but does not transit frames between other nodes in the cloud, the TSE may select paths even if it is untrusted by the administrator.

US Patent:

8005968, Aug 23, 2011

Filed:

May 28, 2009

Appl. No.:

12/474029

Inventors:

Kevin Eugene Mason - Kirkland WA, US
Carla Dunagan Cetina - Redmond WA, US
Jeffrey Paul Jensen - San Jose CA, US
Jonathan Peary Morris - Duvall WA, US
Roger Duncan Seielstad - Redmond WA, US
Jimison Samuel Turpin - Seattle WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 15/16

US Classification:

709228, 709224, 709230, 370254, 370402

Abstract:

Systems, methods, and computer media for loading initial maximum transmission unit (MTU) information and determining a destination host PMTU are provided. PMTU is the maximum data unit size that can be transmitted from a source host to a destination host because of a limiting component located somewhere in the path. Initial MTU values are determined from local and network sources, including a central repository, and loaded. A PMTU is then determined for a path between a source host and destination host by selecting an MTU value from the available values. If no MTU values are available for a destination host, a default value is used.