Multilevel Redirector for Nested VDI Session Redirection
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Solution Overview
Problem
In virtual desktop infrastructure (VDI) environments, existing redirection techniques are not available when a user establishes a second remote session within a first remote session, leading to issues such as inaccessible USB devices and incorrect time zones, which hinder productivity, especially in multitier remote sessions.
Innovation Solution
The implementation of a multilevel redirector that intercepts and routes redirection data across multiple remote sessions, ensuring that redirection techniques like USB, time zone, multimedia, and URL redirection are available and functional regardless of the session tier, by determining the appropriate routing for redirection data based on nested remote sessions and user configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a user establishes a second remote session within a first remote session (multitier remote session), then the user can access additional applications and services, but redirection techniques (USB, time zone, multimedia, URL) are no longer available in the nested session
Solution Approach 1:
The patent introduces a multilevel redirector component that acts as an intermediary between the nested remote session and the outer session's redirection infrastructure. This multilevel redirector intercepts redirection data in the nested session and forwards it through the appropriate channels to reach the target resources, thereby maintaining redirection functionality across multiple session tiers without requiring changes to the underlying remote session protocol.
2Ease of operation
If redirection techniques are implemented for single-tier remote sessions, then USB devices, time zones, and multimedia can be properly redirected, but these same techniques fail when nested remote sessions are established
Solution Approach 1:
The patent implements a nested redirector architecture where a multilevel redirector operates within the nested remote session while maintaining awareness of the outer session's redirection context. The multilevel redirector recursively processes redirection data through each session tier, allowing redirection functionality to be nested within nested sessions similar to how the patent describes components executing within remote sessions while maintaining access to outer session resources.
3Extent of automation
If components execute within a remote session as applications, then they operate within the session context, but they lose knowledge of redirection configurations from outer sessions
Solution Approach 1:
The patent implements a feedback mechanism where the multilevel redirector monitors and captures redirection data generated within nested sessions, then forwards this data back through the appropriate channels to maintain redirection state. The multilevel redirector essentially creates a feedback loop that ensures redirection information flows correctly through multiple session tiers, preventing information loss across session boundaries.
Data Source
AI summary
Multilevel redirection can be performed in a VDI environment. When a user establishes a second remote session within a first remote session, various redirection techniques can be configured to span both remote sessions so that redirection will be available within the second remote session in the same manner that redirection was available in the first remote session. Therefore, from the user perspective, redirection will occur regardless of whether the user has established a single tier remote session or multitier remote session.