US 2023/0066784 A1 · ORCHESTRATED RECONNECT FOR CLIENT-UNAWARE ROLLING OF NETWORK NODES

Abstract

Techniques for the transparent rolling of nodes in a cloud-delivered headend service without disrupting client traffic or making users aware of the various nodes in the system being rolled are described herein. The techniques may include receiving an indication that a first node of a network is to be rolled. Based at least in part on the indication, new connection requests may not be sent to the first intermediate node. Additionally, a client device having an existing connection through the first node may be identified. In some examples, a request may be sent to the client device to prompt the client device to establish a new connection. After determining that the new connection has been established such that the new connection flows through a second node of the network, the first node may be rolled.

Claims20

Dependent claims

A method comprising:

receiving an indication that a first intermediate node of a network is to be removed from service;
based at least in part on the indication, refraining from sending new connection requests to the first intermediate node;
based at least in part on the indication, identifying a client device having an existing connection through the first intermediate node;
sending a request to the client device to prompt the client device to establish a new connection;
determining that the new connection has been established such that the new connection flows through a second intermediate node of the network;
and
removing the first intermediate node from service based at least in part on the new connection being established.

4 more elements

A system comprising:

one or more processors;
and
one or more non-transitory computer-readable media storing instructions that, when executed, cause the one or more processors to perform operations comprising:
receiving, at a controller of a cloud-based virtual private network (VPN) service, an indication that a first headend node of the cloud-based VPN service is to be removed from service;
causing, by the controller and based at least in part on the indication, a proxy node of the cloud-based VPN service to refrain from establishing new connections with the first headend node;
causing, by the controller and based at least in part on the indication, the first headend node to send a reconnect request to a client device that is connected to the first headend node;
determining, by the controller, that the client device has reconnected to a second headend node of the cloud-based VPN service that is different than the first headend node;
and
based at least in part on the client device being reconnected to the second headend node, removing the first headend node from the cloud-based VPN service.

6 more elements

A method comprising:

receiving an indication that a first proxy node of a cloud-based VPN service is to be removed from service;
based at least in part on the indication, causing a load balancer node of the cloud-based VPN service to refrain from sending new connection requests to the first proxy node;
based at least in part on the indication, identifying a client device that is connected to a headend node of the cloud-based VPN service through the first proxy node;
sending, to the client device, a request that the client device establish a new connection with the headend node;
determining that the new connection has been established such that the client device is connected to the headend node through a second proxy node that is different than the first proxy node;
and
based at least in part on determining that the new connection has been established, removing the first proxy node from service.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/462,781Filed 31 Aug 2021

Published

2 Mar 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04L 12/4641
Interconnection of networks: virtual LANs, VLANs, e.g. virtual private networks [VPN]
H04L 41/082
Characterised by the conditions triggering a change of settings: the condition being updates or upgrades of network functionality
H04L 12/4675
Virtual LANs, VLANs, e.g. virtual private networks [VPN]: dynamic sharing of VLAN information amongst network nodes
H04L 45/22
Routing or path finding of packets in data switching networks: alternate routing

Orchestrated reconnect for client-unaware rolling of network nodes

Life of this patent

Orchestrated reconnect for client-unaware rolling of network nodes

Life of this patent

Abstract

Claims20