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--- network_stuff:linux_network_internals [2023/08/25 15:22] – jotasandoku
+++ network_stuff:linux_network_internals [2023/11/02 14:38] (current) – external edit 127.0.0.1
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+LINUX KERNEL NETWORKING:
+\\
 Linux has Two main APIs for networking:
   * Ethtool is for physical link management (speed, duplex, buffers etc.)
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 ----
 Place to find all information about interface is this, they are netdev, not just dev:
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 TODO\\
 ... kernel objects and udev, and details of implementing logical interfaces that are associated with ASIC front-panel physical ports. From this discussion: [[http://blog.ipspace.net/2018/03/linux-interfaces-on-software-gone-wild.html]]\\
+\\
 Interface can or cannot be related to physical port.\\
 Linux labels them according to the PCI name, UUID can be used to rename them. udev, driver..\\
   CPU-PCI BUS (unique)	driver enumerates > port1,2,3 ...
   Then udev/uuid is used to map the name/rename the port name on boot time
-\\
 ----
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   ovs-vswitchd --help
+----
+Kernel structs
+\\
+  * ''net_device'' structure, which represents a network device,
+  * ''sk_buff'' structure represents an incoming or outgoing packet, including its headers

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