BGP-LS Extensions for Inter-AS TE using EPE based mechanisms

Document Type Expired Internet-Draft (individual)
Authors Shraddha Hegde  , Srihari Sangli  , Mukul Srivastava  , Xiaohu Xu 
Last updated 2020-12-04 (latest revision 2020-06-02)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


In certain network deployments, a single operator has multiple Autonomous Systems(AS) to facilitate ease of management. A multiple AS network design could also be a result of network mergers and acquisitions. In such scenarios, a centralized Inter-domain TE approach could provide most optimal allocation of resources and the most controlled path placement. BGP-LS-EPE [I-D.ietf-idr-bgpls-segment-routing-epe] describes an extension to BGP Link State (BGP-LS) for the advertisement of BGP Peering Segments along with their BGP peering node and inter-AS link information, so that efficient BGP Egress Peer Engineering (EPE) policies and strategies can be computed based on Segment Routing. This document describes extensions to the BGP-LS EPE to enable it to be used for inter-AS Traffic-Engineering (TE) purposes.


Shraddha Hegde (
Srihari Sangli (
Mukul Srivastava (
Xiaohu Xu (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)