Shim6: Multihoming for IPv6

Fri, 11/21/2008 - 17:30 by Sébastien Barré • Categories:
Research project related: 
Related software: 
Sébastien Barré
Presentation date: 
November 18, 2008
INGI research meeting

Shim6 is a multihoming protocol that has been designed by the IETF to suit the requirements of the new version of IP, IPv6. Currently BGP is used to provide multihomed connectivity to sites, but this technique is already now responsible for part of the growth of the BGP routing tables, and it could be even worth with the very long IPv6 addresses. This presentation explains the motivations that led to the design of Shim6, and goes through its functional and security challenges. We conclude with some open research areas.

LinShim6 0.8 released

Tue, 07/15/2008 - 15:43 by Sébastien Barré • Categories:

LinShim6 0.8 has been released.

LinShim6 is an implementation of the Shim6 protocol, that provides host-centric multihoming capabilities to IPv6.
The major new feature present in version 0.8 is the support for locator updates, that is, the peer is now informed when new locators become locally available.
More information here :

A Measurement-Based Analysis of Multihoming

Tue, 04/01/2008 - 19:47 by Damien Saucez • Categories:

The paper "A Measurement-Based Analysis of Multihoming" proposed by Akella et al. at SIGCOMM'03 shows different aspects of performances improvements in multihomed environments.

The journal article we discussed in [08-03-17] is basically the same as this paper, so that we only present a fast summary of the paper.

On the Performance Benefits of Multihoming Route Control

Mon, 03/17/2008 - 18:19 by Damien Saucez • Categories:

The paper "On the Performance Benefits of Multihoming Route Control" written by A Akella et al. in IEEE/ACM Transactions on Networking February 2008 estimates the possible gain of performances while correctly route traffic in multihomed enterprise environments.

The paper focus on two metrics: the RTT (called turnaround time) and the throughput of http-based downloads.

ISP and Egress Path Selection for Multihomed Networks

Mon, 03/17/2008 - 11:32 by Damien Saucez • Categories:

The paper "ISP and Egress Path Selection for Multihomed Networks" written by Dhamdhere and Dovrolis and presented at IEEE INFOCOM'06 discusses a solution to select the best ISPs for multihommed stub depending on traffic patterns of the stub.

The idea is simple, first, determine the traffic top X prefixes of the stub. Determine the possible ISPs for the stub and use stochastic techniques to detemine the subset of ISP to subscribe to and how to perform the best egress path selection.

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