Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2002-09-30
2008-09-23
Sefcheck, Gregory B (Department: 2619)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S230000, C709S227000, C709S231000
Reexamination Certificate
active
07428216
ABSTRACT:
Techniques are disclosed for establishing packet-based communication between first and second endpoints over a network, in a manner which reduces the latency and complexity associated with call setup. In accordance with one aspect of the invention, a resource is requested from the network utilizing a first protocol, and while the request is pending, transmission of packets at a first priority level is commenced. After a response is received from the network granting access to the requested resource, a tagging mechanism is utilized to identify particular packets for transmission at a second priority level higher than the first priority level. In an illustrative embodiment, the first protocol is the Resource Reservation Protocol (RSVP), the first priority level corresponds to a Better than Best Effort (BBE) policy, and the second, higher priority level corresponds to an Expedited Forwarding (EF) policy. These policy levels may be implemented for a given packet by setting a Type of Service (TOS) byte in a header of the given packet to a value specifying the corresponding policy.
REFERENCES:
patent: 6631122 (2003-10-01), Arunachalam et al.
patent: 6738819 (2004-05-01), Li et al.
patent: 6763392 (2004-07-01), del Val et al.
patent: 6804738 (2004-10-01), Weber
patent: 6973033 (2005-12-01), Chiu et al.
patent: 2002/0087699 (2002-07-01), Karagiannis et al.
patent: 2002/0194362 (2002-12-01), Rawlins et al.
patent: 2004/0022191 (2004-02-01), Bernet et al.
B.E. Carpenter et al., “Differentiated Services in the Internet,” Proceedings of the IEEE, vol. 90, No. 9, pp. 1479-1494, Sep. 2002.
Bur Goode, “Voice Over Internet Protocol (VoIP),” Proceedings of the IEEE, vol. 90, No. 9, pp. 1495-1517, Sep. 2002.
R. Braden et al., “Resource ReSerVation Protocol (RSVP)—Version 1 Functional Specification,” 2 pages, Sep. 1997.
S. Blake et al., “An Architecture for Differentiated Services,” p. 1-30, Dec. 1998.
P. Almquist, “Type of Service in the Internet Protocol Suite,” pp. 1-24, Jul. 1992.
Siddiqui Anwar A.
Tucker Luke A.
Avaya Inc.
Moore, Jr. Michael J
Ryan & Mason & Lewis, LLP
Sefcheck Gregory B
LandOfFree
Method and apparatus for policy and admission control in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for policy and admission control in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for policy and admission control in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3983384