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It is just a toy, but it shows the possibility of using xdp to implement 5g upf.

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801room/upf-xdp

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This program uses xdp to simply process gtpu packet.
It is just a toy, but it shows the possibility of using xdp to implement 5g upf.

Dependencies

libbpf
goebpf

Installation

sudo apt install libbpfcc-devgo get github.com/dropbox/goebpf

Component

Component

Usage

make./main -h   Usage of ./main:     -elf string        clang/llvm compiled binary file (default "upf.elf")     -iface string        Interface to bind XDP UPF N3/N6     -n4addr string        N4 server socket (default "127.0.0.1:8805")     -test        mock and testing (default true)     -verbose        Enable verbose mode with debug log messages

Discuss

Message routing can be forwarded directly through the xdp encapsulation layer 2 Ethernet frame without going through the protocol stack.
What is the number of tables supported by xdp?

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It is just a toy, but it shows the possibility of using xdp to implement 5g upf.

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