SESSION RELIABILITY FOR A REDIRECTED USB DEVICE
First Claim
1. A method, implemented by a client-side proxy in a virtual desktop infrastructure environment, for enabling I/O requests pertaining to a device that is redirected to a server over a remote session to be resumed when the remote session has become disconnected and then restored, the method comprising:
- establishing a remote session with an agent on a server;
redirecting a device over the remote session;
detecting that the remote session has been disconnected;
in response to the remote session being disconnected, queueing one or more I/O requests received from the device; and
determining whether the remote session is restored within a specified amount of time such that;
when the remote session is restored within the specified amount of time, the proxy sends the queued I/O requests over the remote session to the agent; and
when the remote session is not restored within the specified amount of time, the proxy discards the queued I/O requests and causes the device to be connected to the client.
15 Assignments
0 Petitions
Accused Products
Abstract
Session reliability can be improved when a USB device is redirected over a remote session. If a remote session is disconnected while a USB device is redirected over the remote session, a server-side agent and a client-side proxy will both receive a session disconnection notification. In response to this session disconnection notification, the agent and the proxy can each queue any I/O requests pertaining to a USB device that was being redirected over the now-disconnected remote session and commence waiting for a specified period of time. If the disconnected remote session is restored within the specified period of time, the agent and the proxy can send the queued I/O requests over the remote session. Otherwise, the agent and proxy can cause the queued I/O requests to be completed with the proper error status or discarded and can take appropriate steps to remove the device from the server and connect the device to the client.
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Citations
20 Claims
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1. A method, implemented by a client-side proxy in a virtual desktop infrastructure environment, for enabling I/O requests pertaining to a device that is redirected to a server over a remote session to be resumed when the remote session has become disconnected and then restored, the method comprising:
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establishing a remote session with an agent on a server; redirecting a device over the remote session; detecting that the remote session has been disconnected; in response to the remote session being disconnected, queueing one or more I/O requests received from the device; and determining whether the remote session is restored within a specified amount of time such that; when the remote session is restored within the specified amount of time, the proxy sends the queued I/O requests over the remote session to the agent; and when the remote session is not restored within the specified amount of time, the proxy discards the queued I/O requests and causes the device to be connected to the client. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, implemented by a server-side agent in a virtual desktop infrastructure environment, for enabling I/O requests pertaining to a device that is redirected to the server over a remote session to be resumed when the remote session has become disconnected and then restored, the method comprising:
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establishing a remote session with a proxy on a client; redirecting a device over the remote session; detecting that the remote session has been disconnected; in response to the remote session being disconnected, queueing one or more I/O requests directed to the device; and determining whether the remote session is restored within a specified amount of time such that; when the remote session is restored within the specified amount of time, the agent sends the queued I/O requests over the remote session to the proxy; and when the remote session is not restored within the specified amount of time, the agent completes the I/O requests with an error status and initiates a device removal process to remove the redirected device from the server. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A virtual desktop infrastructure environment comprising:
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a proxy that is configured to execute on a client; and an agent that is configured to execute on a server, the proxy and agent interacting to establish a remote session including to redirect a device to the server for use within the remote session; wherein, when the remote session is disconnected, the proxy and the agent are each configured to enable I/O requests pertaining to the device to be resumed after the remote session is restored by performing the following; queuing any I/O requests pertaining to the device that are received after the remote session is disconnected; waiting for a specified amount of time after the remote session is disconnected; and when the remote session is restored prior to the specified amount of time elapsing, sending the queued I/O requests over the restored remote session. - View Dependent Claims (18, 19, 20)
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Specification