IS-IS Optimal Distributed Flooding for Dense Topologies
draft-white-lsr-distoptflood-03
| Document | Type |
Replaced Internet-Draft
(candidate for lsr WG)
Expired & archived
|
|
|---|---|---|---|
| Authors | Russ White , Shraddha Hegde , Tony Przygienda | ||
| Last updated | 2022-11-22 (Latest revision 2022-07-11) | ||
| Replaces | draft-white-distoptflood | ||
| Replaced by | draft-ietf-lsr-distoptflood | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Additional resources | Mailing list discussion | ||
| Stream | WG state | Call For Adoption By WG Issued | |
| Document shepherd | (None) | ||
| IESG | IESG state | Replaced by draft-ietf-lsr-distoptflood | |
| Consensus boilerplate | Unknown | ||
| 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This Internet-Draft is no longer active.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
In dense topologies (such as data center fabrics based on the Clos and butterfly topologies, though not limited to these), IGP flooding mechanisms designed for sparse topologies can "overflood," or carry too many copies of topology and reachability information to fabric devices. This results in slower convergence times and higher resource utilization. The modifications to the flooding mechanism in the Intermediate System to Intermediate System (IS-IS) link state protocol described in this document reduce resource utilization significantly, while increasing convergence performance in dense topologies. Note that a Clos fabric is used as the primary example of a dense flooding topology throughout this document. However, the flooding optimizations described in this document apply to any topology.
Authors
Russ White
Shraddha Hegde
Tony Przygienda
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)