Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
N-Way Fail-Over Infrastructure for Survivable Servers and Routers Yair Amir Ryan Caudy Ashima Munjal Theo Schlossnagle
 

Summary: N-Way Fail-Over Infrastructure for Survivable Servers and Routers
Yair Amir Ryan Caudy Ashima Munjal Theo Schlossnagle
Ciprian Tutu
Johns Hopkins University
{yairamir, wyvern, munjal, theos, ciprian}@cnds.jhu.edu
Technical Report
CNDS-2002-5
http://www.cnds.jhu.edu
December 8, 2002
Abstract
Maintaining the availability of critical servers and routers is an important concern for many
organizations. At the lowest level, IP addresses represent the global namespace by which services
are accessible on the Internet.
We introduce Wackamole, a completely distributed software solution based on a provably cor-
rect algorithm that negotiates the assignment of IP addresses among the currently available servers
upon detection of faults. This reallocation ensures that at any given time any public IP address
of the server cluster is covered exactly once, as long as at least one physical server survives the
network fault. The same technique is extended to support highly available routers.
The paper presents the design considerations, algorithm specification and correctness proof,
discusses the practical usage for server clusters and for routers, and evaluates the performance of

  

Source: Amir, Yair - Department of Computer Science, Johns Hopkins University

 

Collections: Computer Technologies and Information Sciences