# US 10,454,834 B2 · Network traffic control during limited power situations > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,454,834 B2 - Document ID: US10454834B2 - Status: Granted - Kind: B2 - Application number: 15/438,032 - Filed: 2017-02-21 - Published: 2017-06-08 - Granted: 2019-10-22 - Earliest claimed: 2014-07-21 - Assignees: Cisco Technology, Inc. - Applicants: Cisco Technology, Inc. - Inventors: Jean-Philippe Vasseur; Jonathan W. Hui - Web page: https://patentgrep.com/patent/US10454834B2 ## CPC - H04L 47/22: Traffic shaping - H04L 41/0677: Localisation of faults - H04L 45/28: using route fault recovery - H04L 47/20: Traffic policing - H04L 47/24: Traffic characterised by specific attributes, e.g. priority or QoS - H04L 47/18: {End to end} - H04W 40/10: based on available power or energy - Y02D 30/70: in wireless communication networks - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract In one embodiment, a device in a network detects a power outage event. The device monitors one or more operational properties of the device, in response to detecting the power outage event. The device determines whether to initiate a traffic control mechanism based on the one or more monitored operational properties of the device, according to a power outage traffic control policy. The device causes one or more nodes in the network that send traffic to the device to regulate the traffic sent to the device, in response to a determination that the traffic control mechanism should be initiated. ## Claims ### Claim 1 A method comprising: sending, by a first device in a network, traffic towards a second device along a routing path in the network while the second device is experiencing a power outage event; receiving, at the first device, a request from the second device to regulate the traffic sent to the second device during the power outage event, according to a power outage traffic control policy wherein the request includes a power outage traffic control action for traffic of a certain type, the control action based on one or more operational properties of the second device; and performing, by the first device, the power outage traffic control action, in response to receiving the request from the second device. ### Claim 2 (depends on 1) The method as in claim 1, wherein the power outage traffic control action comprises at least one of: stopping the traffic from being sent, shaping a rate of the traffic, or redirecting the traffic to a third device, wherein the power outage traffic control action is selected based on a criticality of the traffic. ### Claim 3 (depends on 1) The method as in claim 1, wherein the power outage traffic control policy specifies the action based on a level of criticality of the traffic. ### Claim 4 (depends on 1) The method as in claim 1, wherein the power outage traffic control action specifies the action based on a type of traffic or an identified sender of the traffic. ### Claim 5 (depends on 1) The method as in claim 1, wherein the power outage traffic control action shapes a rate of the traffic. ### Claim 6 (depends on 1) The method as in claim 1, wherein the power outage traffic control policy stops the traffic from being sent. ### Claim 7 A tangible non-transitory computer readable medium storing program instructions that cause a computer to execute a process including at least a sync daemon, the process comprising: send traffic towards a device along a routing path in the network while the device is experiencing a power outage event; receive a request from the device to regulate the traffic sent to the device during the power outage event, according to a power outage traffic control policy wherein the request includes a power outage traffic control action for traffic of a certain type, the control action based on one or more operational properties of the second device; and perform the power outage traffic control action, in response to receiving the request from the second device. ### Claim 8 An apparatus, comprising: one or more network interfaces to communicate with a network; a processor coupled to the one or more network interfaces and configured to execute a process; and a memory configured to store the process executable by the processor, the process when executed operable to: send traffic towards a device along a routing path in the network while the device is experiencing a power outage event; receive a request from the device to regulate the traffic sent to the device during the power outage event, according to a power outage traffic control policy wherein the request includes a power outage traffic control action for traffic of a certain type, the control action based on one or more operational properties of the second device; and perform the power outage traffic control action, in response to receiving the request from the second device. ### Claim 9 (depends on 8) The apparatus as in claim 8, wherein the power outage traffic control action comprises at least one of: stopping the traffic from being sent, shaping a rate of the traffic, or redirecting the traffic to a second device, wherein the power outage traffic control action is selected based on a criticality of the traffic. ### Claim 10 (depends on 8) The apparatus as in claim 8, wherein the power outage traffic control policy specifies the action based on a level of criticality of the traffic. ### Claim 11 (depends on 8) The apparatus as in claim 8, wherein the power outage traffic control action specifies the action based on a type of traffic or an identified sender of the traffic. ### Claim 12 (depends on 8) The apparatus as in claim 8, wherein the power outage traffic control action shapes a rate of the traffic. ### Claim 13 (depends on 8) The apparatus as in claim 8, wherein the power outage traffic control policy stops the traffic from being sent. ### Claim 14 (depends on 7) The method as in claim 7, wherein the power outage traffic control action redirects the traffic to the second device. ### Claim 15 (depends on 7) The tangible non-transitory computer readable medium as in claim 7, wherein the power outage traffic control action comprises at least one of: stopping the traffic from being sent, shaping a rate of the traffic, or redirecting the traffic to a second device, wherein the power outage traffic control action is selected based on a criticality of the traffic. ### Claim 16 (depends on 7) The tangible non-transitory computer readable medium as in claim 7, wherein the power outage traffic control policy specifies the action based on a level of criticality of the traffic. ### Claim 17 (depends on 7) The tangible non-transitory computer readable medium as in claim 7, wherein the power outage traffic control action specifies the action based on a type of traffic or an identified sender of the traffic. ### Claim 18 (depends on 7) The tangible non-transitory computer readable medium as in claim 7, wherein the power outage traffic control action shapes a rate of the traffic. ### Claim 19 (depends on 7) The tangible non-transitory computer readable medium as in claim 7, wherein the power outage traffic control action stops the traffic from being sent. ### Claim 20 (depends on 7) The tangible non-transitory computer readable medium as in claim 7, wherein the power outage traffic control action redirects the traffic to the second device.