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Re: Fuzzy-layering and its suggestion - Towards better QoS solution in the IPv6 network

2002-09-09 19:30:16
At 09:21 AM 9/10/2002 +0800, Jason Gao wrote:
I mean it did not prohibit the use of one bit in the traffic class octet for control purpose.

actually, it very explicitly did. At the top of page 8, it says:

   Implementors should note that the DSCP field is six bits wide.  DS-
   compliant nodes MUST select PHBs by matching against the entire 6-bit
   DSCP field, e.g., by treating the value of the field as a table index
   which is used to select a particular packet handling mechanism which
   has been implemented in that device.

The other two bits are defined by RFC 3168.

You don't get to pull a bit out for your private use.