Dear All,
I believe I have couple question to how inet:dscp defined and would greatly
appreciate your guidance, suggestions and help.
I’ve found int:dscp definition as:
typedef dscp {
type uint8 {
range "0..63";
}
description
"The dscp type represents a Differentiated Services Code Point
that may be used for marking packets in a traffic stream.
In the value set and its semantics, this type is equivalent
to the Dscp textual convention of the SMIv2.";
reference
"RFC 3289<http://www.ietf.org/rfc/rfc3289.txt>: Management Information
Base for the Differentiated
Services Architecture
RFC 2474<http://www.ietf.org/rfc/rfc2474.txt>: Definition of the
Differentiated Services Field
(DS Field) in the IPv4 and IPv6 Headers
RFC 2780<http://www.ietf.org/rfc/rfc2780.txt>: IANA Allocation
Guidelines For Values In
the Internet Protocol and Related Headers";
}
Couple notes on the definition:
· DSCP defined in RFC 2474 and RFC 3260. RFC 3260 is not listed as
reference;
· Though DiffServ MIB, defined in RFC 3289, had defined DSCP values to
be in 0…63 range, RFC 3260 explicitly differentiated standardized codepoints
from unknown or improperly mapped DSCP codepoints. The fact is that
standardized DSCP codepoints do not represent contiguous range as recorded in
IANA DSCP
Registry<http://www.iana.org/assignments/dscp-registry/dscp-registry.xhtml>.
· And here’s my question Should inet:dscp be defined based exclusively
on standardized DSCP codepoints as other values are non-standard?
Regards,
Greg
_______________________________________________
netmod mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/netmod
