| 摘要 |
A routing device including an operating system kernel, a virtual router residing external to the kernel, a router manager configured to manage the virtual router, an application residing external to the virtual router, and a number of physical interfaces is disclosed. The application selectively interacts with the virtual router and the kernel on a dynamic basis, which perform a number of tasks for the application. The virtual router includes a routing protocol stack configured to handle a number of routing protocols, a number of interface drivers configured to communicate with corresponding physical interfaces, an IP stack configured to interact with the routing protocol stack and perform a forwarding function via the interface drivers, the IP stack having a forwarding information table used to perform the forwarding function; and a socket layer having a corresponding socket API configured to facilitate interactions between the IP stack and one or more socket applications.
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