> Quoting Bryan Lawver <[EMAIL PROTECTED]>: > Subject: Re: IPoIB forwarding > > I don't think this sequence should occur. My IP links have MTU of 9k and I > have set the ib0 links to the same MTU.
Not sure about this: IPoIB has different encapsulation header size. Maybe make IPoIB MTU bigger? > This sequence of 17k size packet > every eighth packet seems to match my retransmit sequence as captured by > tcpdump on the IP end of an iperf. The MSS in the IP header is 8960 so > this would seem to be one complete IP packet and the data payload from a > second. > > > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x177 length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x178 length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x179 length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x17a length 17964 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x17b length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x17c length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x17d length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x17e length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x17f length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x180 length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x181 length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x182 length 17964 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x183 length 9004 > connection 0x340406 > Apr 26 08:30:27 wopr0 ib0: sending packet: head 0x184 length 9004 > connection 0x340406 > I see you have enabled DEBUG_DATA for IPoIB CM - this will hurt performance. -- MST _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
