Hybrid Unicast/Anycast Content Distribution Network System
AssigneeAT&T Intellectual Property II, L.P.
InventorsAlexandre Gerber, Oliver Spatscheck, Jacobus Van der Merwe
Life of this patent
Estimating the term…
Abstract
A method includes receiving a request for an edge cache address, and comparing a requestor address to an anycast group. The method can further include providing an anycast edge cache address when the requestor address is in the anycast group. Alternatively, the method can further include determining an optimal cache server, and providing a unicast address of the optimal cache server when the requestor address is not in the anycast group.
Claims20
A system comprising:
- a memory that stores instructions;
- and
- a processor that executes the instructions to perform operations, the operations comprising:
- comparing an address of a requestor to an anycast group,
- wherein when the anycast group is in a stable network, an existing relationship causes requests from the anycast group to enter the network at a same router, and
- wherein when the anycast group is in an unstable network, the traffic enters the network at multiple provider edge routers.
A method, comprising:
- comparing, by utilizing instructions from a memory that are executed by a processor, an address of a requestor to an anycast group,
- wherein when the anycast group is in a stable network, an existing relationship causes requests from the anycast group to enter the network at a same router, and
- wherein when the anycast group is in an unstable network, the traffic enters the network at multiple provider edge routers.
A non-transitory computer-readable device comprising instructions, which, when loaded and executed by a processor, cause the processor to perform operations, the operations comprising:
- comparing an address of a requestor to an anycast group,
- wherein when the anycast group is in a stable network, an existing relationship causes requests from the anycast group to enter the network at a same router, and
- wherein when the anycast group is in an unstable network, the traffic enters the network at multiple provider edge routers.
Dependencies are inferred from the claim text.