System and method for virtual media command filtering

Details System and method for virtual media command filtering System and method for virtual media command filtering

2004-09-21

2009-11-03

Ho, Andy (Department: 2194)

Electrical computers and digital processing systems: interprogra

Common gateway interface program communication

C709S230000, C709S231000, C709S232000

Reexamination Certificate

active

07614058

ABSTRACT:
Virtual media device network communication is improved with a media filter that reduces unnecessary non-media access commands, such as test unit ready commands, that have an enhanced impact on data transfer rates when media devices communicate over a network. The media filter withholds communication of selected non-media information by a remote access controller associated with a virtual media device and generates simulated responses to the withheld communication for return to the virtual media device. In one embodiment, predetermined non-media access commands are withheld from communication to a network unless a timeout timer is expired. The timeout timer is set for a time period that precludes a media change between timeout timer expirations and is reset with successful response to a command through the network.

REFERENCES:
patent: 6546434 (2003-04-01), Snow et al.
patent: 6584585 (2003-06-01), Patterson, Jr.
patent: 6799316 (2004-09-01), Aguilar et al.
patent: 7283497 (2007-10-01), Mueller
patent: 7505980 (2009-03-01), Tyndall et al.

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