Figure 4-1. Structure of socket buffers <TT>(struct sk_buff)</TT> with packet storage locations.4.1 Socket Buffers The network implementation of Linux is designed to be independent of a specific protocol. This applies both to the network and transport layer protocols (TCIP/IP, IPX/SPX, etc.) and to network adapter protocols (Ethernet, token ring, etc.). Other protocols can be added to any network layer without a need for major changes. As mentioned before, socket buffers are data structures
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