The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2010
Filed:
Sep. 13, 2001
Indrajanti Sukiman, Sunnyvale, CA (US);
Hussein F. Salama, Sunnyvale, CA (US);
Thomas E. Cramer, Jr., Lafayette, CA (US);
Purnam Anil Sheth, Livermore, CA (US);
Indrajanti Sukiman, Sunnyvale, CA (US);
Hussein F. Salama, Sunnyvale, CA (US);
Thomas E. Cramer, Jr., Lafayette, CA (US);
Purnam Anil Sheth, Livermore, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method for on-demand management of Internet Protocol (IP) address pools includes allocating an unused IP address from a local IP address pool designated for a remote domain if a request to connect to the remote domain is received and deallocating an IP address if the IP address is released. The local IP address pool includes at least one subnet dynamically assigned from a global IP address pool. Each of the subnets specifies a contiguous set of one or more IP addresses. IP addresses are allocated using a first-assigned-subnet-first policy, wherein an IP address is allocated from a least recently assigned subnet having at least one unallocated IP address. According to one aspect, subnets are deassigned using a last-assigned-subnet-first policy, wherein the deassigned subnet is the most recently assigned subnet having no allocated IP addresses.