Content-aware dynamic network resource allocation
View Patent ↗Network resources allocated for particular application traffic are aware of the characteristics of L4+ content to be transmitted. One embodiment of the invention realizes network resource allocation in terms of three intelligent modules, gateway, provisioning and classification. A gateway module exerts network control functions in response to application requests for network resources. The network control functions include traffic path setup, bandwidth allocation and so on. Characteristics of the content are also specified in the received application network resource requests. Under request of the gateway module, a provisioning module allocates network resources such as bandwidth in optical networks and edge devices as well. An optical network resource allocation leads to a provisioning optical route. Under request of the gateway module, a classification module differentiates applications traffic according to content specifications, and thus creates and applies content-aware rule data for edge devices to forward content-specified traffic towards respective provisioning optical routes.
1. A method for performing content aware optical bandwidth allocation over a network including an edge device and an optical control unit, the method comprising:
receiving signal traffic of applications from the edge device, the signal traffic including information indicative of at least one of a content tag and a content identifier;
using at least one of the content tag and the content identifier, determining a bandwidth request for specified content traffic from the signal traffic;
communicating with the optical control unit to allocate optical bandwidth of an optical link to provide a provisioned optical route,
communicating with the edge device to allocate bandwidth of a physical port by which content-specific traffic is forwarded to a provisioned optical route,
creating content-aware rule data for the edge device to forward specified content traffic towards the provisioned bandwidth route; and
applying the rule data to the edge device.
2. The method of claim 1 , wherein the edge device includes a filtering and forwarding component.
3. The method of claim 1 , wherein the network includes a plurality of optical control units and wherein the method further comprises communicating with more than one of the plurality of optical control units to allocate bandwidth based on the bandwidth request to provide a provisioned bandwidth route.
4. The method of claim 1 , wherein the bandwidth request is an optical bandwidth request.
5. A system for performing content aware optical bandwidth allocation over a network including an edge device and a first optical control unit, the system comprising:
a gateway module in communication with the edge device, the gateway module operative to receive signal traffic from the edge device, the signal traffic including at least one of a content tag and a content identifier, and to determine, from the signal traffic using the at least one of the content tag and the content identifier, a bandwidth request associated with specified content traffic;
a provisioning module in communication with the gateway module, the provisioning module operative to receive a provisioning request from the gateway module regarding the bandwidth request for specified content traffic, to communicate with an optical control unit to allocate optical bandwidth based on the bandwidth request to provide a provisioned bandwidth route and to communicate with an edge device to allocate appropriate bandwidth based on the bandwidth request for forwarding the specified content traffic towards the provisioned bandwidth route; and
a classification module in communication with the gateway module, the classification module operative to receive a content classification request from the gateway module, and, based on the content classification request, to create a content-aware routing rule for the edge device to forward specified content traffic to the provisioned bandwidth route.
6. The system of claim 5 , wherein the system further comprises:
a second optical control unit in communication with the provisioning module, the provisioning module operative to communicate with the optical control unit to allocate bandwidth based on the bandwidth request to provide a provisioned bandwidth route.
7. The system of claim 5 , wherein the gateway module is further operative to cause the edge device to forward signal traffic to the gateway module.
8. The system of claim 5 , wherein the edge device includes a control unit and wherein the provisioning module is in communication with the control unit of the edge device to allocate bandwidth on the edge device based on the bandwidth request to provide a provisioned bandwidth route.
9. A method for performing content aware optical bandwidth allocation over a network including an edge device and a first optical control unit, the method comprising:
receiving signal traffic of applications from the edge device, the signal traffic including information indicative of at least one of a content tag and a content identifier;
using at least one of the content tag and the content identifier, determining a network resource request for specified content traffic from the signal traffic;
communicating with the first optical control unit to allocate a network resource to provide a provisioned optical route;
communicating with the edge device to allocate the network resource for forwarding specified content traffic to a provisioned optical route;
creating content-aware rule data for the edge device to forward specified content traffic to the provisioned optical route; and
applying the rule data to the edge device.
10. The method of claim 9 , wherein the network resource is optical bandwidth.
11. The method of claim 10 , wherein receiving signal traffic comprises:
receiving a bandwidth request for specified content traffic, the bandwidth request having been transmitted using a resource signaling protocol.
12. The method of claim 10 , wherein the method is repeated to provide dynamic optical bandwidth allocation.
13. The method of claim 10 , wherein the method further comprises:
filtering content traffic according to the rule data; and
routing filtered content traffic according to the rule data.
14. The method of claim 10 , wherein communicating with an optical control unit comprises:
forwarding a bandwidth request signal to the first optical control unit and, at the first optical control unit, managing the optical bandwidth of an associated optical gear in response to the received request.
15. The method of claim 14 , wherein managing the optical bandwidth of an associated optical gear comprises managing an optical interface port of associated optical gear.
16. The method of claim 14 , wherein the method further comprises:
forwarding a bandwidth request to a second optical control unit to allocate bandwidth along a provisioned bandwidth route and, at the second optical control unit, receiving the request and managing the optical bandwidth of an associated optical gear in response to the received request.
17. The method of claim 10 , wherein the method further comprises:
receiving traffic at the edge device, the traffic being sent by a client and including signal traffic; and
filtering and forwarding the signal traffic.
18. The method of claim 10 , wherein the method further comprises:
allocating bandwidth at the edge device for specified content traffic passing through the edge device.
19. The method of claim 9 , wherein the method further comprises
applying the rule data to the edge device.
20. The method of claim 9 , wherein receiving signal traffic from the edge device comprises:
causing the edge device to forward signal traffic to a gateway module, the gateway module operative to determine a network resource request for specified content traffic from the signal traffic.