Optimizing IGP Link Costs for Improving IP-level Resilience


Major new router platforms support fast IP-level failure protection based on LFA. But LFA usually cannot protect against all possible failure scenarios. This paper shows how a deliberate selection of IGP link costs can bring many networks close to complete LFA-based protection.

Authors
Gábor Rétvári, Levente Csikor, János Tapolcai, Gábor Enyedi, András Császár

http://www.ericsson.com/news/optimizing-igplink-costs-for-improving-ip-level-resilience_244159017_c?idx=10