Hello, As far as I remember, ECN field is a part of 8-bit ToS (two least-significant bits). Therefore the value of ECN would be: ecn_value = tos_value & 0x03.
Regards, --- Michał Rzepka W dniu 2016-10-04 12:29, Pynbiang Hadem napisał(a): > Dear All, > > I have set values to the ECN field of IPv4 packet Header at the > INGRESS SWITCH using the SET_FIELD action in Ryu. At the > controller(using PACKET_IN FROM EGRESS SWITCH), I want to read the ECN > field. However reading the packet header using RYU library > (RYU.LIB.PACKET IMPORT IPV4), only the TOS field is recognised for > reading. > > Kindly suggest how to read only the ECN field that was set at the > ingress switch. > > Thanks > Hadem. > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Ryu-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ryu-devel ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
