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Enabling planned upgrade/downgrade of network devices without impacting network sessions
Enabling planned upgrade/downgrade of network devices without impacting network sessions
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机译:在不影响网络会话的情况下启用网络设备的计划升级/降级
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摘要
Provided are methods and systems for enabling a planned upgrade or a planned downgrade of a first network device. A method may commence with receiving a request for a virtual service via a Transmission Control Protocol (TCP) session between the first network device and the client device. The method may further include creating, by a second network device being a standby device for the first network device, a redirect network session for the TCP session. The method may continue with delivering, by the first network device, the request for the virtual service to a server. Upon a change designating the second network device as an active device for the virtual service, the second network device may receive, from the server, a server response associated with the virtual service and redirect the server response to the first network device for further sending of the server response to the client device.
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