Using Flex-Algo for Segment Routing (SR) based Virtual Transport Network (VTN)
draft-zhu-lsr-isis-sr-vtn-flexalgo-06
| Document | Type |
This is an older version of an Internet-Draft whose latest revision state is "Active".
Expired & archived
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| Authors | Yongqing Zhu , Jie Dong , Zhibo Hu | ||
| Last updated | 2024-01-11 (Latest revision 2023-07-10) | ||
| RFC stream | (None) | ||
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| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Expired | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
Enhanced VPN (VPN+) aims to provide enhanced VPN services to support some existing or emerging application's needs of enhanced isolation and stringent performance requirements. VPN+ requires integration between the overlay VPN connectivity and the characteristics provided by the underlay network. A VTN is a virtual underlay network that is associated with a network topology, and is allocated with a set of dedicated or shared resources from the underlay physical network. A VTN could be used as the underlay for one or a group of VPN+ services. The topological constraints of a VTN can be defined using Flex-Algo, a mechanism to provide distributed constraint-path computation. In some network scenarios, each VTN can be associated with a unique Flex-Algo, and the set of network resources allocated to different VTNs can be instantiated as layer-2 sub-interfaces or member links of the layer-3 interfaces. This document describes the mechanisms to build the Segment Routing (SR) based VTNs using SR Flex-Algo and IGP L2 bundles with minor extensions. This document updates RFC 8668 by defining a new flag in the Parent L3 Neighbor Descriptor in the L2 Bundle Member Attributes TLV.
Authors
Yongqing Zhu
Jie Dong
Zhibo Hu
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)