Patent ID: 9438534
Filing Date: 2016-09-06
CPC Classification: H04L

Claim Text:
1. A method implemented in a network device coupled to a network connecting a first data center and a second data center, wherein the two data centers are geographically separated, wherein the network contains circuit switching devices transmitting data between the two data centers, the method comprising: receiving a request at the network device to migrate a data set from the first data center to the second data center; sending a signaling packet from the first data center toward a first in a series of circuit switching devices to reach the second data center, wherein the signaling packet includes metadata containing transmission selection and characteristics of the data set to be migrated, wherein the signaling packet is processed through the series of circuit switching devices, each of which configures its forwarding path for the data set based at least on the metadata of the signaling packet; waiting for a period of time, wherein the period of time is long enough to allow each of the series of circuit switching devices to configure its forwarding path for the data set, wherein the configuration at each circuit switching device is set to last for a migration duration during which the data set migration is performed at that circuit switching device, and wherein that circuit switching device releases the configured forwarding path for the data set migration after the migration duration; and sending the data set to be migrated from the first data center toward the first in the series of circuit switching devices to reach the second data center following the transmission selection of the signaling packet after the period of time expires.