I'm unclear on the bits used for DSCP and IPP, it is my understanding
Tos = 1 Byte
IPP uses Bits 7,6,5, according to QoS Part 2 Video(CCNP);it uses the 3 Most Significant Bits ( I think I understand this)
Part I am unclear
DSCP - Does it use the 6 Most Significant Bits so 7,6,5,4,3,2 and 1,0 for Congestion? Or 0,1,2,3,4,5 and 7,8 for Congestion?
I am reading additional resources (see below for link) and this seems incorrect as it is referring to IPP using 0,1,2 when it should be 6,7,8??
ToS is 1 byte of the layer 3 IP packet, which is divided and used as the following:
       
For IP precedence, the bits 0, 1 & 2 are used to map the CoS 3 bits in Layer 2 QoS.