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Is LwIP reliable?

Is LwIP reliable?

I created some test and debug applications to find out the best way of using the LwIP stack. I found out that when you use the LwIP stack correctly it is stable and reliable.

What is LwIP stack?

LwIP is a free TCP/IP stack developed by Adam Dunkels at the Swedish Institute of Computer Science (SICS) and licensed under a modified BSD license. The focus of the LwIP TCP/IP implementation is to reduce RAM usage while keeping a full scale TCP/IP stack. This makes LwIP suitable for use in embedded systems.

How does LwIP work?

The network stack of lwIP includes an IP (Internet Protocol) implementation at the Internet layer that can handle packet forwarding over multiple network interfaces. lwIP includes an implementation of IPv4 ARP (Address Resolution Protocol) and IPv6 Neighbor Discovery Protocol to support Ethernet at the data link layer.

Why LwIP?

The Lightweight IP (lwIP) stack is an open-source implementation of the TCP/IP stack developed specifically to reduce resource usage while maintaining a full-scale TCP/IP stack. For embedded systems, lwIP makes it possible to connect the system to a local intranet or the Internet.

What does lwIP stand for?

lightweight Internet Protocol
The lightweight Internet Protocol (lwIP) is a small independent implementation of the network protocol suite that has been initially developed by Adam Dunkels. The focus of the lwIP network stack implementation is to reduce memory resource usage while still having a full scale TCP.

What is lwIP protocol?

Lightweight TCP/IP (lwIP) is a widely accepted TCP/IP stack for embedded platforms supporting most of the networking protocols in the TCP/IP suite. It offers a BSD-like socket application programming interface, which facilitates easy migration of existing network or socket applications to your embedded platform.

Is TCP slower than UDP?

TCP is a connection-oriented protocol, whereas UDP is a connectionless protocol. A key difference between TCP and UDP is speed, as TCP is comparatively slower than UDP. Overall, UDP is a much faster, simpler, and efficient protocol, however, retransmission of lost data packets is only possible with TCP.

What is the focus of the lwIP stack?

The focus of the lwIP stack is to reduce memory usage and code size, making lwIP suitable for use in small clients with very limited resources such as embedded systems. In order to reduce processing and memory demands, lwIP uses a tailor made API that does not require any data copying. This report describes the design and implementation of lwIP.

What kind of Internet Protocol does lwIP use?

At the Internet layer the network stack of lwIP includes an IP (Internet Protocol) implementation that can handle packet forwarding over multiple network interfaces. Both IPv4 and IPv6 are supported dual stack since lwIP v2.0.0 . For network maintenance and debugging, lwIP implements ICMP (Internet Control Message Protocol).

How is the raw API used in lwIP?

The Raw API is a non-blocking, event-driven API designed to be used without an operating system that implements zero-copy send and receive. This API is also used by the core stack for interaction between the various protocols. It is the only API available when running lwIP without an operating system.

What is the difference between ARP and lwIP?

lwIP is very modular and has support for a wide variety of protocols, most of which can be removed for smaller code size. ARP, a link-layer protocol used to translate a native hardware address (i.e., “MAC address”) into an IP address IPv4, the dominant network-layer protocol used today, particularly in the internet