Technical Summary
This document defines optional Explicit Congestion Notification (ECN)
and filter related attributes that can be used for improved traffic
identification, support of ECN and minimized filter administration
within Diameter.
RFC 5777 (Traffic Classification and QoS Attributes for Diameter)
defines a Filter-Rule AVP that accommodates extensions for
classification, conditions and actions.
In this draft, the Classifier Grouped AVP contained in the Filter-Rule
AVP is extended with the new ECN-IP-Codepoint AVP which gives the
Explicit Congestion Notification (ECN) codepoint values (defined in
RFC3168) to match in the IP header. Moreover, the Filter-Rule Grouped
AVP itself is extended with a new Congestion-Treatment AVP that
indicates how congested traffic should be treated.
The Flow-Count and Packet-Count AVPs are also defined in this document
to be sent to report in application specific command information of the
group of flows described by the Filter-Rule, IPFilterRule or other
Diameter traffic filters. This information can be used by the
application for improved decision making, Charging and rudimentary
traffic profiling.
Working Group Summary
The working group has consensus supporting this draft.
Document Quality
No additional reviews are requested.
Personnel
The document shepherd is Lionel Morand.
The responsible Area Director is Kathleen Moriarty.
IANA Note
This daft provides the specification required to add IANA allocated AVP
codes in the IANA-controlled namespace registry specified in Section
11.1.1 of [RFC6733] for the AVPs defined in this document.