stack capability
1.Besides, μC/OS-Ⅱ and TCP/IP protocol stack aretransplanted to ARM so that the PMU has the capability of multitasking andcommunicating with the Ethernet directly.
2.The IPv4 protocol stack in VxWorks is ported from 4.4 BSD, with realtime capability enhanced. So, the network software architecture in VxWorks is similar to 4. 4 BSD.
