Floating frame timing circuits for network devices

Details Floating frame timing circuits for network devices Floating frame timing circuits for network devices

2007-12-14

2010-06-01

Chen, Alan (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral monitoring

C710S016000, C710S017000, C710S018000, C710S019000, C710S029000, C710S030000, C709S224000

Reexamination Certificate

active

07730230

ABSTRACT:
Apparatus having corresponding methods and computer programs comprise a plurality of interfaces to pass control frames; a memory to store configuration information; a select circuit to select one of the interfaces according to the configuration information; and a timing circuit to determine a time of passage of each control frame passing through the selected one of the interfaces.

REFERENCES:
patent: 7454425 (2008-11-01), Che et al.
patent: 2007/0011343 (2007-01-01), Davis et al.
U.S. Appl. No. 10/829,866, filed Apr. 21, 2004; “Method and Apparatus for Managing Packets in a Packet Switched Network”; Tsahi Daniel et al.; 77 pages.
U.S. Appl. No. 11/254,588, filed Oct. 20, 2005; “Inter-Device Flow Control”; Donald Pannell et al.; 54 pages.
IEEE P802.1Qat/D1.0; Draft Standard for Local and Metropolitan Area Networkss- Virtual Bridged Local Area Networks—Amendment 9: Stream Reservation Protocol (SRP); Sponsor LAN/MAN Standards Committee of the IEEE Computer Society; Prepared by the Audio/Video Bridging Task Group of IEEE 802.1; 42 pages; Jan. 17, 2008; IEEE P802.1Qat—Stream Reservation Protocol; pp. 1-3.
IEEE P802.1AS/D2.0; Draft Standard for Local and Metropolitan Area Networks- Timing and Synchronization for Time-Sensitive Applications in Bridged Local Area Networks; Sponsor LAN/MAN Standards Committee of the IEEE Computer Society; Prepared by the Interworking Task Group of IEEE 802.1; 204 pages; Feb. 22, 2008; IEEE 802.1AS—Timing and Synchronization; pp. 1-6.
International Standard IEC 61588(E):2004; First Edition Sep. 2004; IEEE 1588(E)TM 2002; Precision Clock Synchronization Protocol for Network Measurement and Control Systems; Sponsor TC9—Technical Committee on Sensor Technology of the IEEE Instrumentation and Measurement Society; Approved Sep. 12, 2002; IEEE-SA Standards Board; 158 pages.
IEEE Std 1394-1995; IEEE Standard for a High Performance Serial Bus; Sponsor Microprocessor and Microcomputer Standards Committee of the IEEE Computer Society; Approved Dec. 12, 1995; IEEE Standards Board; Approved Jul. 22, 1996; American National Standards Institute; 392 pages.

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