Profilbild von Stefan Lieberth Stefan Lieberth aus Berlin

Stefan Lieberth

teilweise verfügbar

Letztes Update: 03.03.2016

Stefan Lieberth

Abschluss: nicht angegeben
Stunden-/Tagessatz: anzeigen
Sprachkenntnisse: deutsch (Muttersprache) | englisch (verhandlungssicher)

Skills

Technical Project Management
 Creation of Product Description, High-Level-Architectures, Low-Level-Design, High Test-Specifications.
 Quality review
 

Network Architectures, Protocols and Interfaces
Network Function Virtualization (NFV) Architecture
Commercial of The Shelf (COTS) platforms
VM deployment for VmWare ESXi 5.1/5.5
VM deployment for KVM
Design and Deployment of a vEPC NFV in a Tier-1 Mobile-Network-Operator
Mobile Core Components and Interfaces:
GGSN, S-GW, P-GW, MME, PCRF, SGSN
Gn, Gp, Gi, Gx, Gy, Gz, AAA
S1-U, -MME, S4, S5, S8, S13. SGi
Design and Configuration of Mobile Core Infrastructure Components

 IPv4 networking,
Routing protocols BGP, MP-BGP, OSPF, ISIS, LDP
High-, Low-Level design for Carrier- and Enterprise-networks.
Troubleshooting on Cisco- and Juniper- routers.

MPLS Networking
MPLS Traffic-Engineering
MPLS Virtual-Private-Networks
High-, Low-Level design for Carrier- and Enterprise-networks.
Troubleshooting on Cisco- and Juniper- routers.

IPv6, DNSv6, DHCPv6
Self-Study with IPv6 lab, private IPv6 network and Sixxs Tunnel

Next-Generation Voice (IMS)
Analysing the correct setting of SIP protocol elements in Diameter Charging messages
Debugging of SIP call flows
 

Object-Oriented Perl
Development of a Diameter OCS simulator for acceptance tests.

 
Python
Development of a Web-Portal for Network-Element (Router, Switches, Subscriber-Management-Systems) Configuration-
- DB Model for User-Profiles and NE-characteristics
- NE Adapters for Arista, Cisco and Affirmed
Processing Tools for Excel Sheets

 
Excel VBA
Development of a router HW/SW config-tool for Juniper sales
Development of an UE-Profile (XML description for mobile handset capabilities) modification tool.

 
Wireshark Protocol Ananlyser
Debugging of IP, Diameter, Radius flows in data-networks.
Post-Processing of Wireshark Traces with XML export utility. (Perl)

 
Performance-Management in Carrier/Networks networks.
Planning/documentation of counters and file formats for PM counters.

 
Configuration Management
CLI
Netconf/Yang
CLI scripts for Routers
Programming the Affirmed Netconf API in a Python module, based Python ncclient library.

 

 
ITIL & PRINCE2 Certifications

2/2015
ITIL® Foundation Certificate in IT Service Management

3/2015
PRINCE2® Foundation Certificate in Project Management

Projekthistorie

on request

Zeitliche und räumliche Verfügbarkeit

Berlin and nothern Bavaria, 

Kontaktformular

Kontaktinformationen

Profilbild von Stefan Lieberth Stefan Lieberth aus Berlin Stefan Lieberth
Registrieren