draft-ietf-tsvwg-diffserv-intercon-11.txt   draft-ietf-tsvwg-diffserv-intercon-12.txt 
TSVWG R. Geib, Ed. TSVWG R. Geib, Ed.
Internet-Draft Deutsche Telekom Internet-Draft Deutsche Telekom
Intended status: Informational D. Black Intended status: Informational D. Black
Expires: April 14, 2017 Dell EMC Expires: April 14, 2017 Dell EMC
October 11, 2016 October 11, 2016
Diffserv-Interconnection classes and practice Diffserv-Interconnection classes and practice
draft-ietf-tsvwg-diffserv-intercon-11 draft-ietf-tsvwg-diffserv-intercon-12
Abstract Abstract
This document defines a limited common set of Diffserv PHBs and This document defines a limited common set of Diffserv PHBs and
codepoints (DSCPs) to be applied at (inter)connections of two codepoints (DSCPs) to be applied at (inter)connections of two
separately administered and operated networks, and explains how this separately administered and operated networks, and explains how this
approach can simplify network configuration and operation. Many approach can simplify network configuration and operation. Many
network providers operate MPLS using Treatment Aggregates for traffic network providers operate MPLS using Treatment Aggregates for traffic
marked with different Diffserv Per Hop Behaviors, and use MPLS for marked with different Diffserv Per Hop Behaviors, and use MPLS for
interconnection with other networks. This document offers a simple interconnection with other networks. This document offers a simple
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identified by the signaled DSCPs have been established (e.g., via use identified by the signaled DSCPs have been established (e.g., via use
of the Diffserv-Intercon DSCPs) prior to BGP signaling of PHB id of the Diffserv-Intercon DSCPs) prior to BGP signaling of PHB id
codes. codes.
1.2. Applicability Statement 1.2. Applicability Statement
This document is applicable to use of Differentiated Services for This document is applicable to use of Differentiated Services for
interconnection traffic between networks, and is particularly suited interconnection traffic between networks, and is particularly suited
to interconnection of MPLS-based networks that use MPLS Short-pipe to interconnection of MPLS-based networks that use MPLS Short-pipe
tunnels. This document is also applicable to other network tunnels. This document is also applicable to other network
technologies, but it isnot intended for use within an individual technologies, but it is not intended for use within an individual
network, where the approach specified in RFC5127 [RFC5127] is among network, where the approach specified in RFC5127 [RFC5127] is among
the possible alternatives; see Section 3 for further discussion. the possible alternatives; see Section 3 for further discussion.
The Diffserv-Intercon approach described in this document simplifies The Diffserv-Intercon approach described in this document simplifies
IP based interconnection to domains operating the MPLS Short Pipe IP based interconnection to domains operating the MPLS Short Pipe
model for IP traffic, both terminating within the domain and model for IP traffic, both terminating within the domain and
transiting onward to another domain. Transiting traffic is received transiting onward to another domain. Transiting traffic is received
and sent with the same PHB and DSCP. Terminating traffic maintains and sent with the same PHB and DSCP. Terminating traffic maintains
the PHB with which it was received, however the DSCP may change. the PHB with which it was received, however the DSCP may change.
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