On Tue, Mar 8, 2016 at 11:22 AM, David Woodhouse <dwmw2 at infradead.org> wrote: > Then the cstp_pkt could be sized for the 'negotiated MTU', as would > deflate_pkt_size. And the *actual* MTU at any moment would be stored > separately in a more ephemeral variable. > Out of interest, how does this work on the server side anyway? We can > reduce the size of the packets that *we* send, but how do we tell the > *server* to send smaller packets? Without breaking the CSTP connection > and reconnecting, at least? I don't think there is a way and MTU can be different for each direction (theoretically at least). In ocserv the server sets the don't fragment flag and relies on ICMP to adjust the MTU size.
