There is provided a module for implementing handoff and/or quality optimization of a network protocol stack (308). The module is transparent to the network protocol stack (308) and an application (306) using the network protocol stack (308). The module includes session detector (402) and an auxiliary manager (410). The module may further include a request interceptor (404), a request analyzer (406) and controller (408). The session detector (402) detects an original session from a host to a remote host. The auxiliary session manager (410) opens and manages a plurality of auxiliary sessions to support the original session. The request interceptor (404) detects an original request issued by the application, wherein the original request is for retrieving certain content. The request analyzer (406) analyzes the intercepted original request. The controller (408) uses the original session and auxiliary sessions to retrieve the content based on the result of the analysis.
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