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Loopback interface should use a larger MTU #3200

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stevenengler opened this issue Oct 4, 2023 · 1 comment
Open

Loopback interface should use a larger MTU #3200

stevenengler opened this issue Oct 4, 2023 · 1 comment
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Type: Enhancement New functionality or improved design

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@stevenengler
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stevenengler commented Oct 4, 2023 •
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On Linux, the loopback interface typically uses a large MTU (65,536). In Shadow it uses the same MTU as the eth0 interface, which is 1500 and is stored as a global constant CONFIG_MTU. We should support different MTUs for different interfaces, but it gets complicated because sometimes localhost packets will be sent over the external Internet interface instead of the loopback interface.
@stevenengler stevenengler added the Type: Enhancement New functionality or improved design label Oct 4, 2023
This was referenced Oct 4, 2023
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@ppopth
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ppopth commented Oct 5, 2023 •
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Run ip addr to get the confirmation.

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@ppopth @stevenengler