in Golang it's easy to use SetDSCP sets the 6bit DSCP field in IPv4 header, or 8bit Traffic Class in IPv6 header.
How do I achieve it in Rust UDP Socket?
Thanks
in Golang it's easy to use SetDSCP sets the 6bit DSCP field in IPv4 header, or 8bit Traffic Class in IPv6 header.
How do I achieve it in Rust UDP Socket?
Thanks
Yeah it doesn't seems there's an easy way for it. Here's a PR on the socket2 crate to add this feature.
https://github.com/rust-lang/socket2/pull/224
Note that setting those flags on application is discouraged as ISPs tends to overwrite them on the network edge. The PR conversation contains a link to the windows document mentioning "DO NOT USE".
They're usable and useful when the connection is exclusively transiting private networks. If such a private network isn't stripping DSCP on ingress & egress, they have a bug that will turn into a deliverability problem
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