18439399. HITLESS UPGRADE OF A NETWORK DEVICE simplified abstract (Juniper Networks, Inc.)

HITLESS UPGRADE OF A NETWORK DEVICE

Organization Name

Juniper Networks, Inc.

Inventor(s)

Shrish Mahishi of Bangalore (IN)

Ramesh Rajan of San Jose CA (US)

Vijay Paul of San Jose CA (US)

Sanjeev Anandrao Mahajan of Bangalore (IN)

Atit Jain of Bangalore (IN)

Pramod Srinivasan of San Jose CA (US)

HITLESS UPGRADE OF A NETWORK DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18439399 titled 'HITLESS UPGRADE OF A NETWORK DEVICE

Simplified Explanation: A network device identifies the need to reboot its control plane to perform an ISSU procedure, temporarily stopping applications and freezing the control plane state before resuming normal operations post-procedure.

Key Features and Innovation:

• Network device detects need for control plane reboot for ISSU procedure.
• Temporarily halts applications and freezes control plane state.
• Resumes normal operations after ISSU procedure completion.

Potential Applications: This technology can be applied in various network devices and systems where uninterrupted operation during software upgrades or maintenance is crucial.

Problems Solved: This technology addresses the challenge of performing software upgrades or maintenance procedures without disrupting network device operations.

Benefits:

• Ensures smooth software upgrades without affecting network device performance.
• Minimizes downtime during maintenance procedures.
• Enhances overall network reliability and efficiency.

Commercial Applications: Potential commercial applications include telecommunications networks, data centers, and other critical infrastructure where uninterrupted operation is essential for business continuity.

Prior Art: Readers can explore prior art related to network device maintenance procedures, control plane management, and software upgrade processes in the field of networking technologies.

Frequently Updated Research: Stay updated on the latest advancements in network device maintenance procedures, software upgrade techniques, and control plane management in the networking industry.

Questions about Network Device Control Plane Reboot Technology: 1. How does the network device determine the need to reboot its control plane for the ISSU procedure? 2. What are the potential risks associated with freezing the control plane state during the ISSU procedure?

Original Abstract Submitted

A network device obtains a data package associated with an ISSU procedure and determines, based on the data package, that a control plane of the network device is to be rebooted to facilitate performance of the ISSU procedure. The network device causes, based on determining that the control plane is to be rebooted, a plurality of applications of the network device to stop executing on the network device and a control plane state of the network device to be frozen. The network device then causes the ISSU procedure to be performed. The network causes, based on causing the ISSU procedure to be performed, the control plane state of the network device to be restored and the plurality of applications to resume executing on the network device.