On Jun 6, 2012, at 9:13 PM, Philip Prindeville wrote: > On 6/6/12 11:54 AM, Michael Tuexen wrote: >> On Jun 6, 2012, at 7:17 PM, Adrian Chadd wrote: >> >>> Hi, >>> >>> For TCP, I've seen the network layer change things (eg setting bits on >>> incoming traffic to mark which interface it came in on), so you can't >>> guarantee the outbound ToS == inbound ToS. >> I've not said that inbound == outbound... I just wanted to make clear >> that there is a socket option of setting the TOS byte for outgoing >> traffic. The TCP stack might overwrite the ECN bits... >> >> I need the IP_RECVTOS functionality for implementing a transport stack >> supporting >> ECN in userland, actually running the SCTP kernel sources (with some glue >> code) >> in userland on top of UDP... >> >> Best regards >> Michael > > What about UDT? Can you patch that as well? The UDT implementation can use IP_RECVTOS option, however I don't have the time to look into this for the UDT implementation.
Best regards Michael > > For certain services (like backups or AFP), it might be useful for a server > to be able to detect a QoS-friendly client and reciprocate in kind. > > -Philip > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
