Simon Leinen

Current

Team Leader at SWITCH
Network Engineer at SWITCH

Past

Consultant at IDS
Assistant at EPFL
Assistant at EPFL (Ecole Polytechnique Fédérale de Lausanne)

2 more...

Education

Technische Universität Berlin

Recommended

1 person has recommended Simon

Connections

282 connections

Industry

Computer Networking

Simon Leinen’s Summary

Since 1995, I have been doing design, implementation, and operational work on IP networks.

In 1995, I wrote an SNMP library in Perl, which is widely used as part of the MRTG and Cricket traffic-graphing tools, as well as in a multitude of custom network monitoring applications.

In 1997, I wrote a Netflow-based accounting system (in Common Lisp) for billing and traffic analysis, which has been in continuous operation at SWITCH since then.

My long-term professional goals are to do more research and some teaching. My long-term research project is the refinement, simulation, and deployment of an alternative internetworking model based on source routing.

Simon Leinen’s Specialties:

network management, end-to-end performance, flow-based traffic accounting, high-performance IP network design, BGP routing and policy, IPv6, multicast, DiffServ, SNMP

Simon Leinen’s Experience

Team Leader

SWITCH

(Computer Networking industry)

February 2009 — Present (10 months)

Head of the "LAN" team that builds and operates the SWITCHlan IP backbone.
Network Engineer

SWITCH

(Privately Held; Information Technology and Services industry)

October 1996 — Present (13 years 2 months)

I'm an engineer in the Network group, which operates a fiber-based IP backbone for all universities and some other research organizations in Switzerland.

Our group plans, designs, and operates the backbone. Besides other network management tools, I wrote and maintain a NetFlow-based accounting system that is used for volume-based billing, capacity planning, and anomaly detection.

I help operate SWITCH's DNS servers, both for internal usage and for the CH and LI top-level domains. For the CH/LI registry, I also provide support with difficult DNS questions, and maintain a script used to check validity of delegations in the registration system. (I recently added IPv6 support to the script.)

We also support research and development, both with our customers (universities) and with other research networks in projects such as 6NET, TF-NGN, or GN2.

I'm also active in the IETF, currently co-chairing the NETCONF (NETwork CONFiguration) working group together with Andy Bierman.