Thanks for the information. Indeed, a MSS around 1500 is what is being observed in this case.
I guess trying to re-enable this option from a specific NKE is pointless since there can be other NKEs involved. > On Mar 20, 2019, at 6:23 PM, Vincent Lubet <vlu...@apple.com> wrote: > > When installing an interface filter disables TSO (TCP Segmentation Offload) > for the interface and this lead TCP to clamp the MSS from 64K to 1500. > > This is done because some interface filters do not process correctly packets > larger than the interface MTU > > Vincent > >> On Mar 20, 2019, at 9:24 AM, Stéphane Sudre <ssu...@intego.com> wrote: >> >> Just out of curiosity, is there any known issue in macOS 10.14.x where the >> simple presence of a network kernel extension significantly slows down >> network transfers through Thunderbolt 3 connectors but not through classic >> Ethernet connectors? >> >> For instance by automatically reducing the MTU size if a network kernel >> extension is enabled. _______________________________________________ Do not post admin requests to the list. They will be ignored. Macnetworkprog mailing list (Macnetworkprog@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/macnetworkprog/archive%40mail-archive.com This email sent to arch...@mail-archive.com
