System and method to provide routing control of information over networks
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Accused Products
Abstract
A system and method for controlling routing of data. It is determined whether at least one data flow is active, the at least one data flow having an ingress portion of a current ingress path to a first point from a second point and an egress portion of a current egress path to the second point from the first point. Another data flow is routed via a next ingress portion of a next path to the first point from the second point.
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Citations
69 Claims
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1-51. -51. (canceled)
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52. A method for routing data in a network, the method comprising:
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tagging a data packet with identifier information that specifies a network element to control an egress path for the data packet, wherein the egress path is from a first point to a second point;
routing the data packet according to the identifier information;
modifying a source address of the data packet using network address translation (NAT) to create a translated network source address to control an ingress path through a network service provider (NSP) associated with the translated source address, wherein the ingress path is from the second point to the first point;
routing the data packet via the egress path, wherein the source address is associated with a second NSP and the egress path includes the second NSP; and
receiving a return data packet via the ingress path, wherein the ingress path includes the NSP. - View Dependent Claims (53, 54, 55, 56)
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57. A method for routing data in a network, the method comprising:
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modifying a source address of a data packet using network address translation (NAT) to create a translated network source address to control an ingress path through a network service provider (NSP), wherein the ingress path is from a second point to a first point;
tagging the data packet with identifier information that specifies a network element to control an egress path for the data packet, wherein the egress path is from the first point to the second point;
routing the data packet along the egress path according to the network element, wherein the egress path includes a second NSP; and
receiving a return data packet via the ingress path, wherein the ingress path includes the NSP. - View Dependent Claims (58, 59, 60, 61)
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62. A system for routing data in a network via an egress path from a first point to a second point and an ingress path from the second point to the first point, the system comprising:
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a controller for providing ingress path change information and egress path change information, wherein the ingress path and the egress path differ;
a network address translation (NAT) engine for modifying a NAT address to control the ingress path;
a route server for modifying a routing table to control the egress path; and
a router for routing a data packet via the egress path, wherein the egress path includes a first network service provider (NSP) and for receiving a return data packet via the ingress path, wherein the ingress path includes a second NSP that is distinct from the first NSP. - View Dependent Claims (63, 64, 65)
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66. A method for managing routes in a network, comprising:
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determining an activity status of a first data flow along a first data path, wherein the first data path is associated with a destination address and at least one network element;
if the activity status of the first data flow is active, then preserving a record associated with the first data path in a routing data structure;
once the activity status of the first data flow becomes inactive, then withdrawing the first path from the routing data structure;
receiving a route update, wherein the route update identifies a second path associated with the destination address and at least one updated network element; and
updating the routing data structure by creating a record associated with the second data path, so that a second data flow directed to the destination address is routed via the second path. - View Dependent Claims (67, 68, 69)
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Specification