<link href="../p-template.xhtml" rel="p-parent"/> </head> <body> <div id="content"> <div style="clear: right; float: right; max-width: 20em; margin: 0 0 0 2em; z-index: 9999; position: relative;"> <div class="panel"> <div class="header hoverlink"> <div style="float: right;"> <a href="https://plus.google.com/115848089775713275106"> <img src="/site/images/misc/gplusbutton.png" alt="G+ Button" width="16" height="16"/> </a> </div> <a href="https://plus.google.com/115848089775713275106">Activity Stream</a> </div> <div class="body">  <a href="resource://gplus/activities?max=3&maxAgeSeconds=1800&apiKey=AIzaSyDaJMttlJIUST9ux-NlB-B9p4c4B0UMfGI&userId=115848089775713275106"/> </div> </div> </div> <div class="profile"> <div class="name"> Sascha Lenz </div> <div class="link"> <a href="https://mailto:slz@4thline.com/">slz@4thline.com</a> </div> <div class="link"> <a href="http://4thline.org/articles/?author=Sascha%20Lenz">Articles</a> </div> <div class="summary"> System- and Network Architect experienced in all aspects of modern network technology from optical transport networks to Unix-based network support services. Specialized in planning, building, as well as operating/troubleshooting Layer2/3 routing and switching networks. </div> <h2> Qualifications </h2> <ul class="qualifications"> <li> Vast experience in designing and running ISP- and corporate/datacenter networks since 1994 </li> <li> Day-by-day operation of <a href="https://apps.db.ripe.net/whois/lookup/ripe/aut-num/AS29317.html">my own autonomous system</a> on the internet, completely self-managed </li> <li> Bringing internet access to private users in the early 1990s </li> <li> Member of several national and international network operator groups, member of the <a href="http://www.denog.de/">DENOG</a> meeting program committee </li> <li> Active in public internet infrastructure organizations, participation in several <a href="http://www.ripe.net/">RIPE</a> working groups </li> </ul> <h2> Current Primary Skills & Interests </h2> <ul class="skills"> <li> Designing, building and operating high performance, secure core- and access networks (IP/MPLS, LAN/WAN/WiFi, QoS/CoS, DSL-aggregation, VPNs, IP Telephony) </li> <li> Transport networks (DWDM/CWDM/AToM/GMPLS, Datacenter Interconnection, Audio/Video Unicast/Multicast Transport) </li> <li> Strong focus on IPv6 deployments and lobbying - more than a decade experience with IPv6 </li> <li> Network support and network management systems (OS design, virtualization and Cloud-computing solutions, security monitoring, DNS, LDAP, RADIUS, TACACS+, Netflow/sFlow, Nagios, HPOV NNM) </li> <li> Supporting and advising on commercial- as well as Open Source operating systems and tools </li> <li> Planning for and working with upstream- and transport carriers, peering partners, and internet exchange points; RIPE LIR duties </li> <li> Testing new technologies in lab environments and roll-out planning </li> </ul> <h2> Experience & Projects </h2> <ul id="experiences"> <li> <div class="position">Senior System- and Network Architect WAN+datacenter, Senior Consultant</div> <div class="company">rockenstein AG</div> <div class="duration">(since 2012)</div> </li> <li> <div class="position">Lead Engineer Network Design, RIPE LIR contact, Senior Consultant</div> <div class="company">BayCIX GmbH</div> <div class="duration">(since 2000)</div> </li> <li> <div class="position">Deputy Chairman, Technical Lead</div> <div class="company">GeFoekoM e.V.</div> <div class="duration">(since 1994)</div> </li> <li> <div class="position">3rd Level Network Operations, Network Management Systems design and operation, IP-Telephony roll-out, Consultant </div> <div class="company">Deutsche Telekom AG/T-Systems GmbH</div> <div class="duration">(6+ years in various projects)</div> </li> <li> <div class="position">QT Design Documentation and Configuration, 2nd/3rd Level Operation Transport and Access Networks </div> <div class="company">Vodafone D2 GmbH</div> <div class="duration">(6 months)</div> </li> <li> <div class="position">Consultant Transmission and Network Equipment</div> <div class="company">WueCom GmbH</div> <div class="duration">(2 years)</div> </li> <li> <div class="position">IPv6 Test Engineer</div> <div class="company">Various mobile/landline Carriers (NDA)</div> <div class="duration">(4+ years)</div> </li> <li> <div class="position">MPLS Design and Operation Consultant</div> <div class="company">Military Contractor (NDA)</div> <div class="duration">(1 year)</div> </li> </ul> </div> </div> </body> </html>