Maintained message delivery during routing domain migration
First Claim
1. A method, comprising:
- buffering all received packets at an ingress device of a first routing domain in a computer network;
receiving a request from a particular node indicating that the particular node has migrated from the first routing domain to a second routing domain; and
in response to receiving the request from a particular node indicating that the particular node has migrated from the first routing domain to the second routing domain,determining how to reach the particular node in the second routing domain; and
forwarding the buffered received packets to the particular node in the second routing domain.
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Abstract
In one embodiment, an ingress device of a first routing domain in a computer network buffers received packets, and in response to receiving a request from a particular node indicating that the particular node has migrated from the first routing domain to a second routing domain, determines how to reach the particular node in the second routing domain, and forwards the buffered received packets to the particular node in the second routing domain, accordingly. In another embodiment, a device in the first routing domain migrates from the first routing domain to a second routing domain, and determines its new IP address. The device may then send a request to the first ingress router to forward buffered packets for the device to the second routing domain at the new IP address, and may thus receive buffered packets forwarded from the first ingress router at the device in the second routing domain.
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Citations
19 Claims
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1. A method, comprising:
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buffering all received packets at an ingress device of a first routing domain in a computer network; receiving a request from a particular node indicating that the particular node has migrated from the first routing domain to a second routing domain; and in response to receiving the request from a particular node indicating that the particular node has migrated from the first routing domain to the second routing domain, determining how to reach the particular node in the second routing domain; and forwarding the buffered received packets to the particular node in the second routing domain. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus, comprising:
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one or more network interfaces to communicate as an ingress device within a first routing domain in a computer network; a processor coupled to the network interfaces and adapted to execute one or more processes; and a memory configured to store a process executable by the processor, the process when executed operable to; buffer all received packets; receive a request from a particular node indicating that the particular node has migrated from the first routing domain to a second routing domain; and in response the request from a particular node indicating that the particular node has migrated from the first routing domain to the second routing domain, determine how to reach the particular node in the second routing domain; and forward the buffered received packets to the particular node in the second routing domain. - View Dependent Claims (9, 10, 11, 12)
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13. A tangible non-transitory computer readable medium storing program instructions that cause a computer to execute a process, the process comprising:
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buffering all received packets at an ingress device of a first routing domain in a computer network; receiving a request from a particular node indicating that the particular node has migrated from the first routing domain to a second routing domain; and in response to receiving the request from a particular node indicating that the particular node has migrated from the first routing domain to the second routing domain, determining how to reach the particular node in the second routing domain; and forwarding the buffered received packets to the particular node in the second routing domain. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification