Supporting ephemeral ports in a virtualized environment

Details Supporting ephemeral ports in a virtualized environment Supporting ephemeral ports in a virtualized environment

2006-05-30

2009-11-03

Etienne, Ario (Department: 2453)

Electrical computers and digital processing systems: multicomput

Computer network managing

Network resource allocating

C709S227000, C709S228000, C370S252000, C370S253000

Reexamination Certificate

active

07613809

ABSTRACT:
Methods, apparatuses, articles, and systems for receiving a request for an allocation of one or more ephemeral ports from a pool of ephemeral ports associated with a physical device, for a virtual machine of the physical device, are described herein. In various embodiments, an ephemeral port manager of the physical device is adapted to allocate up to the one or more ephemeral ports requested from the pool of ephemeral ports, if up to the one or more ephemeral ports are available for allocation from the pool of ephemeral ports. In some embodiments, the ephemeral port manager is further adapted to mark the allocated one or more ephemeral ports as unavailable to meet an ephemeral port allocation request of another virtual machine of the physical device.

REFERENCES:
patent: 6745221 (2004-06-01), Ronca
patent: 2002/0048280 (2002-04-01), Lee et al.
patent: 2002/0054587 (2002-05-01), Baker et al.
patent: 2003/0037165 (2003-02-01), Shinomiya
patent: 2005/0166206 (2005-07-01), Parson
patent: 2005/0265252 (2005-12-01), Banerjee et al.
http://www.ietf.org/proceedings/08nov/slides/tsvwg-1.pdf “Port Randomization” Michael Larson & Fernando Gont Nov. 16, 2006.
http://www.icir.org/mallman/papers/ports-ccr09.pdf “Comments on Selecting Ephemeral Ports” Mark Allman.

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