Subject: [netmod] draft-ietf-netmod-acl-model, issue#8&9

From: Mahesh Jethanandani <[email-masked]>
Date: Wed, 23 Aug 2017 16:03:56 -0700

An issue was opened against the ACL model to report that the current model does not support dscp (and ecn). A separate issue reported that precedence is missing in the model, since it defines the entire field as a tos field.

Is there a requirement to support TOS bits/field going forward? We are assuming that most implementations support DSCP than TOS. So the current thought is to replace the TOS field with DSCP (and ECN) bits as such.

leaf dscp {
      type uint8 {
        range 0..63;
      }
      description
        "Also known as Traffic Class in IPv6. The Diffrentiated
         Services Code Point (DSCP) provides an indication of 
         the abstract parameters of the quality of service desired.";
      reference
        "RFC 2474.";
} 
leaf ecn {
      type uint8 {
        range 0..3;
      }
      description
        "Explicit Congestion Notification.";
      reference
        "RFC 3168.";
}
Thoughts?

Mahesh Jethanandani
[email-masked]