> Quoting Roland Dreier <[EMAIL PROTECTED]>: > Subject: Re: [PATCHv4] IPoIB CM Experimental support > > > - Using path MTU discovery, multicast and UDP traffic to UD mode now work, > > only a small number of packets is dropped. > > How does this work? What happens if I set my MTU to 8K and send a > 8000-byte UDP message to a node that doesn't implement CM? What > happens if I send an 8000-byte UDP multicast? > > I didn't think UDP did path MTU discovery by default...
Before packet drop, we reduce the dst mtu, so linux will start splitting following packets to this destination. -- MST _______________________________________________ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
