Infrastructure Architect

5/2018 – 11/2018

Project: Data center transition to SDN

Deliverables
- Plan and conduct customer workshops to agree on migration strategy
- Migration strategy document
- Network current state analysis

Activities
- Identify migration steps under the aspects of complexity, down time and opportunities for automation
- Identify and describe impact of individual steps
- Create associated textual description of migration steps, including detailed logical and physical topologies
- Automation of documentation where possible
- Identify and describe rollback options
- Creation of Python pseudo-code for automation of migration
- Create parametrization data for implementation and migration
- Customize automated network current state analysis to provide input for automation of migration
- Leverage automated network current state analysis for network sanity checks
- Automated creation of ACI policies
- Validation of aforementioned procedures in the lab

Technologies: Hybrid Layer-2/3 overlays, MEC, layer-2/3 data center networking, server-load balancing, device virtualization, multicast, QoS

Products: Cisco ACI Multi-PoD, Cisco vPC, Cisco Nexus and NX-OS, Cisco Catalyst and CatOS, Cisco VDC, Python, Python SDK for Cisco ACI

Systemmigration, Cisco (allg.), Telekommunikation / Netzwerke (allg.)

1/2018 – 5/2018

Project: Data center transition to SDN

Deliverables
- Customer workshops
- Combined data center customer requirements document and high-level design document

Activities
- Document customer requirements
- Develop and present design options in customer workshops
- Drive design and technology decision process in customer workshops
- Document design

Domains
- Metro virtual data center
- Data center interconnect
- Large switched network
- Infrastructure virtualization
- Application networking services

Challenges
- Number of co-located data centers: four
- Large scale: 30K MAC-Addresses, 500 VLANs, 16K STP logical ports

Netzwerk-Sicherheit, Cisco (allg.), Netzwerkarchitektur

10/2017 – 3/2018

Customer: Public Sector IT Service Provider

Project: Data center re-design and technology refresh

Deliverable: Data center networking strategy document

Activities
- Plan and conduct customer workshops to agree on methodology and scope
- Propose and find consensus on strategy themes
- Agree on viewpoints
- Draft position statements and consensus finding
- Elaborate on viewpoints, position statements, dependencies, impact, and risk per theme
- Documentation

Domains
- Software-defined networking
- Segmentation
- Operations and management

Cisco (allg.), Netzwerkarchitektur, Telekommunikation / Netzwerke (allg.)

8/2017 – 10/2017

Project: Data center re-design and technology refresh

Deliverables
- Interview questionnaires
- Interview protocols

Activities
- Define scope and interviewee roles for interviews
- Interview preparation through questionnaire generation
- Protocol interviews
- Generate summary document

Domains
- Management
- Enterprise architecture
- Cloud piloting
- Storage management
- Server operations virtualization
- Data center roles, operational continuity, and disaster recovery
- IT security
- Server operations
- Segmentation
- IP address management
- Data center infrastructures and facilities operations

Netzwerk-Sicherheit, Iaas, Cisco (allg.), Netzwerkarchitektur, Schreiben von Dokumentation