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chore: add explaination comment to pmtud flag

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Toby 2022-11-23 00:15:17 -08:00
parent 26d557a6c4
commit 9eb0ea4367
1 changed files with 6 additions and 0 deletions
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6
pkg/pmtud/avail.go
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@ -3,6 +3,12 @@
package pmtud package pmtud
// quic-go's MTU discovery is by default enabled on all platforms. However, we found that it
// does not set DF bit correctly on some platforms (macOS for example), which causes the probe
// packets (which should never be fragmented) to be fragmented and sent anyway. So here in
// Hysteria we only enable it on Linux and Windows for now, where we have tested it and can
// confirm that it works correctly.
const ( const (
DisablePathMTUDiscovery = false DisablePathMTUDiscovery = false
) )