Electrical computers and digital processing systems: multicomput – Computer-to-computer data routing
Reexamination Certificate
2007-02-06
2007-02-06
Sheikh, Ayaz (Department: 2131)
Electrical computers and digital processing systems: multicomput
Computer-to-computer data routing
C726S015000, C370S351000, C370S395540
Reexamination Certificate
active
11301162
ABSTRACT:
A system, device, and method for supporting virtual private networks in a label switched communication network utilizes an extended Next Hop Resolution Protocol in order to establish a label switched path for a particular virtual private network. Specifically, label information and a corresponding virtual private network identifier are carried in certain Next Hop Resolution Protocol messages. A label request and a corresponding virtual private network identifier is carried in Next Hop Resolution Protocol Resolution Request messages that are forwarded hop-by-hop by a number of devices along a forward path. Label mapping information and a corresponding virtual private network identifier are carried in Next Hop Resolution Protocol reply messages that are forwarded hop-by-hop by the devices in the forward path. In various embodiments of the invention, the label information and the corresponding virtual private network identifier may be carried in a type-length-value field, and the Next Hop Resolution Protocol reply messages may be Next Hop Resolution Protocol Resolution Reply messages or novel Next Hop Resolution Protocol Label Mapping messages.
REFERENCES:
patent: 6226751 (2001-05-01), Arrow et al.
patent: 6614791 (2003-09-01), Luciani et al.
patent: 7095740 (2006-08-01), Jagannath et al.
patent: 2003/0088699 (2003-05-01), Luciani et al.
patent: 2004/0095947 (2004-05-01), Luciani et al.
Juha Heinanen et al. “VPN support with MPLS- Internet Draft.” Mar. 1998. IETF. p. 1-8.
Barbara A. Fox et al. “NHRP Support for Virtual Private Networks—Internet Draft.” Jul. 1999. IEFT. p. 1-4.
B. Fox et al. “RFC 2735: NHRP Support for Virtual Private Networks.” Dec. 1999. IETF. p. 1-12.
J. Luciani et al. “RFC 2332: NBMA Next Hop Resolution Protocol (NHRP).” Apr. 1998. IETF. p. 1-49.
Fredette Andre N.
Hawe Bill
Luciani James V.
LaForgia Christian
McGuinness & Manaras LLP
Nortel Networks Limited
Sheikh Ayaz
LandOfFree
System, device, and method for supporting virtual private... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System, device, and method for supporting virtual private..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System, device, and method for supporting virtual private... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3811066