#0x10	lowdelay
#0x08	throughput
#0x04	reliability

# This value overlap with ECT, do not use it!
#0x02	mincost

# These values seems do not want to die, Cisco likes them by a strange reason.
#0x20	priority
#0x40	immediate
#0x60	flash
#0x80	flash-override
#0xa0	critical
#0xc0	internet
#0xe0	network