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IS-IS Flooding Reduction in MSDC

Document Type Expired Internet-Draft (individual)
Authors Xiaohu Xu , Luyuan Fang , Jeff Tantsura , Shaowen Ma
Last updated 2018-07-16 (Latest revision 2018-01-09)
Stream (None)
Intended RFC status (None)
Expired & archived
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


IS-IS is commonly used as an underlay routing protocol for MSDC (Massively Scalable Data Center) networks. For a given IS-IS router within the CLOS topology, it would receive multiple copies of exactly the same LSP from multiple IS-IS neighbors. In addition, two IS-IS neighbors may send each other the same LSP simultaneously. The unneccessary link-state information flooding wastes the precious process resource of IS-IS routers greatly due to the fact that there are too many IS-IS neighbors for each IS-IS router within the CLOS topology. This document proposes some extensions to IS-IS so as to reduce the IS-IS flooding within MSDC networks greatly. The reduction of the IS-IS flooding is much beneficial to improve the scalability of MSDC networks.


Xiaohu Xu
Luyuan Fang
Jeff Tantsura
Shaowen Ma

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