Re: veb(4) exceeds 1514 byte frame size while bridge(4) doesn't?

2021-03-27 Thread Jurjen Oskam
On Tue, Mar 23, 2021 at 08:24:56PM +1000, David Gwynne wrote: > it looks like ure(4) hardware doesn't strip the fcs before pushing it to > the host over usb, but the ure(4) driver doesn't strip it. > > this usually isn't a huge deal because layers like ip just ignore > the extra bytes. bridge(4)

Re: veb(4) exceeds 1514 byte frame size while bridge(4) doesn't?

2021-03-25 Thread Kevin Lo
On Tue, Mar 23, 2021 at 08:24:56PM +1000, David Gwynne wrote: > > On Sun, Mar 21, 2021 at 04:24:24PM +0100, Jurjen Oskam wrote: > > Hi, > > > > When trying out veb(4), I ran into a situation where TCP sessions across a > > veb(4) bridge stalled while the exact same config using bridge(4) worked

Re: veb(4) exceeds 1514 byte frame size while bridge(4) doesn't?

2021-03-23 Thread David Gwynne
On Sun, Mar 21, 2021 at 04:24:24PM +0100, Jurjen Oskam wrote: > Hi, > > When trying out veb(4), I ran into a situation where TCP sessions across a > veb(4) bridge stalled while the exact same config using bridge(4) worked fine. > > After some investigation, it seems that veb(4) adds an FCS to

veb(4) exceeds 1514 byte frame size while bridge(4) doesn't?

2021-03-21 Thread Jurjen Oskam
Hi, When trying out veb(4), I ran into a situation where TCP sessions across a veb(4) bridge stalled while the exact same config using bridge(4) worked fine. After some investigation, it seems that veb(4) adds an FCS to the outgoing frame, while bridge(4) doesn't. When this causes the outgoing