Network Switch Virtual Machine State Detection
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Solution Overview
Problem
In network systems with virtual machines, existing technologies face challenges in efficiently managing VLAN settings during virtual machine migration and detection of inactive virtual machines, leading to potential security issues and resource inefficiencies.
Innovation Solution
A network switch with a processor that extracts information from packets to create confirmation packets, determines virtual machine states, and adjusts VLAN settings accordingly, ensuring secure and efficient communication by detecting and handling virtual machine migrations and inactive states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If VLAN settings are maintained for migrated virtual machines, then communication continuity is improved, but network security deteriorates due to unnecessary packet relay to inactive machines
Solution Approach 1:
The network switch actively probes virtual machines by transmitting test packets and evaluating responses to determine operational status. This feedback mechanism allows the switch to dynamically adjust VLAN settings based on actual machine states, maintaining communication continuity for active machines while securing the network by isolating inactive ones.
Solution Approach 2:
The system uses the virtual machines' own response behavior to self-identify their operational status. By analyzing whether machines respond to probe packets, the network switch can automatically determine which machines are active without external intervention, enabling automatic VLAN configuration adjustments that balance communication continuity and security.
2Reliability
If the network switch relays packets to all virtual machines in a VLAN, then communication availability is improved, but resource utilization deteriorates due to wasted bandwidth and processing on inactive machines
Solution Approach 1:
The network switch implements an active probing mechanism that sends test packets to virtual machines and evaluates their responses. This feedback allows the switch to identify inactive machines and exclude them from packet relay, ensuring communication availability for active machines while preventing waste of network bandwidth and processing resources on inactive ones.
Solution Approach 2:
The system dynamically changes the operational parameters of VLAN settings based on the detected state of virtual machines. When a machine is determined to be inactive through probe packet evaluation, the switch modifies VLAN configuration parameters to exclude that machine from active communication, optimizing resource utilization while maintaining reliability for active machines.
3Object-affected harmful factors
If the network switch implements active monitoring of virtual machine states, then network security is improved, but device complexity increases due to additional monitoring mechanisms
Solution Approach 1:
The network switch integrates multiple functions into a unified monitoring mechanism. The same probe packet transmission and response evaluation system serves both to detect virtual machine operational status and to determine VLAN configuration needs, eliminating the need for separate monitoring infrastructure and reducing overall device complexity while maintaining security.
Solution Approach 2:
The monitoring system leverages the virtual machines' own response behavior to self-identify their operational status. By analyzing whether machines respond to probe packets, the network switch can automatically determine which machines are active without requiring complex external monitoring tools, simplifying the switch design while improving security through accurate state detection.
4Ease of operation
If VLAN settings are not adjusted during virtual machine migration, then ease of operation is improved, but manufacturing precision deteriorates due to incorrect network configurations
Solution Approach 1:
The network switch automatically detects virtual machine migration events and adjusts VLAN settings without requiring manual intervention. By monitoring packet sources and destinations and evaluating virtual machine responses, the switch self-configures the network topology, maintaining ease of operation while ensuring precise VLAN configuration accuracy for migrated machines.
Solution Approach 2:
The system performs preliminary detection of virtual machine operational status through probe packets before finalizing VLAN configuration adjustments. This preliminary action ensures that the switch has accurate information about machine states before making configuration changes, maintaining both operational simplicity and configuration precision during migration events.
Data Source
AI summary
A network switch, includes: a port configured to receive a packet from one of a first information processing device and a second information processing device: a processor configured to process the packet, wherein the processor performs operations of: extracting first information which is used for creating a request packet requesting a response of a first virtual machine executed by the first information processing device from the packet which is transmitted by the first virtual machine to a second virtual machine executed by the second information processing device; creating the request packet using the first information; transmitting the request packet to the first virtual machine; and determining an operation state of the first virtual machine based on if a response packet for the request packet is received from the first virtual machine.