Tony Rosolek
Wireless LAN Expert | CWNE #356 | CCNP-Enterprise
Experience
Network Expert
Self-employed
- Consulting and execution of migration from Cisco AireOS to Cisco IOS-XE controller
- Solution design
- Configuration and staff training
- Products: Catalyst Center, Cisco controllers and IOS and COS access points, 9800-40, 5520, 8510, 9120, 9136, 9166, Catalyst switches, Aruba Clearpass
- Keywords: Tags, profiles, SSIDs, 802.1X authentication, captive portal, Identity PSK (iPSK), VLANs, troubleshooting, automation, RESTCONF, NETCONF, YANG
Network Architect
Self-employed
- Network consulting and architecture, concept creation, hardware selection, planning and carrying out PoCs
- Definition, testing and documentation of configuration, migration strategy, implementation, network redesign
- Products: Cisco Catalyst Center, Cisco Catalyst switches, Cisco Catalyst access points, Cisco ISE, Trellix agent, Cisco Secure Client, AnyConnect, FortiGate
- Keywords: BSI, KRITIS, Cisco SDA/SDN, SD-Access, Security Group Tags (SGT), virtual networks, software-defined networking (SDN), microsegmentation, macrosegmentation, NAC, onboarding, 802.1X, LISP, VXLAN, WLC, MACsec
Network Expert
Self-employed
- WLAN consulting, concept creation, migration strategy, inventory, documentation
- Products: Sophos, Huawei iMaster NCE-Campus, Huawei Cloud, CloudEngine 5730, AirEngine 5700, Cloud AP
- Keywords: BSI NET.2.1 WLAN operation, NAC, 802.1X, PoE, SSIDs, PPSK, BYOD, captive portal, knowledge transfer
Cisco WLAN Expert
Self-employed
- Consultation on WLAN controllers and access points, configuration review against vendor guidelines and recommendations, troubleshooting 802.1X authentication
- Tips and tricks for troubleshooting
- Products: Cisco Catalyst, Cisco access points and Catalyst 9800 WLAN controllers
- Keywords: SSID, consulting, 802.1X authentication, software updates, eduroam, certificate errors, EAP-PEAP, AAA server
Network Architect
Self-employed
- Architect for the WLAN service, creation of high and low level design, LAN and WLAN consulting, member of the technical staff
- Creating and testing configuration guidelines, further development of access services, troubleshooting, operations manual
- Products: Cisco IOS-XE, Cisco 9800, Cisco 9000, Cisco DNA Center, Catalyst Center, Cisco ISE, embedded WLAN controller, Cisco TrustSec, ASR 1002
- Keywords: Cisco SDA/SDN, SD-Access, Security Group Tags (SGT), virtual networks, software-defined networking, microsegmentation, macrosegmentation, NAC, BSI, KRITIS, onboarding, 802.1X, LISP, VXLAN, eWLC, MACsec, guest portal, change of control, secure syslog
Network Architect and IT Consultant
Self-employed
- Requirements analysis in the network area, consulting for LAN, WAN, WLAN and NAC, creating network architecture
- Selection of new hardware and software, selection and evaluation of vendors and network service providers
- Products: current network portfolio from Aruba, Cisco, Meraki, Umbrella, Extreme Networks, Ekahau and Fortinet (FortiGate, FortiSwitch, FortiNAC)
- Keywords: dynamic VLAN and role assignment, cloud management, network segmentation, firewall, VPN, IDS/IPS, scaling, low-touch deployment, automation
Cisco WLAN Expert
Self-employed
- Consulting and migration of Cisco AireOS to Cisco IOS-XE controllers, solution design, configuration and training staff
- Products: Cisco controllers and IOS and COS access points, 9800-CL, 5520, 8510, 9120, 3802, 3502, Catalyst switches, VMware vSphere
- Keywords: tags, profiles, SSID, 802.1X authentication, captive portal, VLANs, IPv4, licensing, consulting, software upgrade, troubleshooting, regex filter
LAN and WLAN Network Expert
Self-employed
- Consulting in LAN and WLAN, support for migration from Cisco AireOS to IOS-XE
- Replacing standalone access points with controller-based mesh access points, design, software management, staff training, selection of new WLAN antennas, support with troubleshooting
- Products: Cisco Catalyst, Cisco Nexus, Cisco access points (standalone), Cisco Prime, WLAN bridges, macmon, Wireshark, Cisco 1572eac, 9800-L, 2802, 2702, 3802
- Keywords: tags, profiles, SSID, 802.1X authentication, captive portal, VLANs, IPv4, licensing, consulting, troubleshooting, software upgrade
WLAN Network Expert
Self-employed
- Strategy consulting in WLAN, new hardware, software, design, virtualization
- Products: Cisco Catalyst, Cisco access points and WLAN controllers, VMware
- Keywords: SSID, 802.1X authentication, captive portal, software upgrade, consulting, production, guest and office networks, firewall, network segmentation, RADIUS authentication, WLAN simulation
LAN and WLAN Network Expert
Self-employed
- Troubleshooting performance issues and network outages
- Products: Cisco Catalyst, Cisco Nexus, Cisco access points (standalone), Cisco Prime, WLAN bridges, macmon, Wireshark
- Keywords: log analysis, packet capture, packet analysis, CPU, spanning tree, redundancy, software bugs
LAN, WLAN and Security Expert
Self-employed
- Took over network operations from another service provider, planned and carried out migration and transition, documentation and acceptance tests, 2nd and 3rd level support, created operations manual
- Products: Extreme Networks WLAN (IdentFi, Campus Controller, Access Points), Cisco Switching (Catalyst, Nexus, Small Business), Barracuda (F18, Control Center), Genua (Genugate, Genuscreen, Genucenter), Ivanti, Entuity, Cisco DCNM
- Keywords: administration, operational support, incident management, data center, facilities, SINA workstations, WLAN scanners, ECOS bootstick, spanning tree, virtual port channel (vPC), firewall, VPN, packet filter, application level gateway, ITIL, proxy server, email security, spam
Trainer in Wireless Technologies
Self-employed
- Created and delivered online training
- Products: PowerPoint, Wireshark
- Keywords: Bluetooth, RFID, ZigBee, Z-Wave, BLE, NFC, EnOcean, modulation, WLAN, wave properties, physics, standards organizations, signal behavior, antennas, receiver sensitivity, 2G/3G/4G/5G, DECT, microwave radio, Tetra
WLAN Troubleshooting Expert
Self-employed
- Troubleshooting and resolving issues with WLAN scanners
- Products: Cisco (Catalyst 9800/9115/9117/1562), Ekahau, Datalogic (Skorpio x5), Zebra (MC3300), Wireshark
- Keywords: site survey, troubleshooting, creating test plans and running tests, packet capture and analysis with Wireshark, reporting, 802.11r fast transition, developing workarounds
Architect for New WLAN Concept
Self-employed
- Current state assessment, concept development, target architecture description, low-level design, planning PoC and pilot, test matrix
- Products: Cisco (Catalyst 9800/9100), Meraki (MR), Aruba (Central), Imagotag, Hanshow, MS Visio
- Keywords: guest WLAN, service WLAN, electronic shelf labels (ESL), 'pick by voice', WLAN coverage planning, 802.1X authentication, Clearpass, PoE, ZigBee
LAN and WLAN Network Expert
Self-employed
- Consulting in LAN and WLAN, supporting migration from Cisco AireOS to IOS-XE
- Creating WLAN design, writing operations manual and concepts, migration strategy, mesh access points, software management, staff training
- Selecting new hardware and software, troubleshooting support, liaising with vendor TAC, bug reports, workarounds, creating test plans and migration strategies
- Products: Cisco C9800-80, C9800-L, 9120, 9166, 9164, 9162, 2802, 2702, 7925, 8821, Cisco Catalyst Switches, Cisco Prime, Cisco Spaces, Cisco DNA, WLAN Bridges, Cisco ISE, Wireshark, Ekahau, Hamina, Zebra, Honeywell, Talkman, DLOG
- Keywords: tags, profiles, SSID, 802.1X authentication, captive portal, VLANs, IPv4, Cisco Smart Licensing Satellite Server, software upgrades, consulting, troubleshooting, external antennas, Ekahau heatmapping, client bridges, location tracking, indoor navigation, directional antennas, Identity Services Engine, RADIUS profiling, access lists, web authentication, SSO, high availability, WLAN telephony, seamless roaming
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Information Technology (5 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (5 years), Customer Service (5 years), Procurement (3 years), Operations (1 year), and Project Management (1 year).
Summary
Tony Rosolek is the ideal contact for all topics related to LAN and WLAN. He is one of only 13 Certified Wireless Network Experts (CWNE) in Germany and holds the most important certification in the WLAN field.
Consulting, design, operation, and troubleshooting of complex enterprise networks are just a few areas where he can add significant value. He understands both the bits and bytes of various network protocols and can communicate effectively at the CxO level. Thanks to his blend of communication and technical skills, understanding business requirements and turning them into technical solutions are among his strengths.
Languages
Education
Deutsche Telekom AG
Apprenticeship as an IT systems electronics technician, IHK certificate · IT systems electronics technician · Frankfurt an der Oder, Germany
Primary and secondary school
Secondary school diploma · Frankfurt an der Oder, Germany
Certifications & licenses
CWISA Certified Wireless IoT Solutions Administrator
cwnp®
CWNE #356 Certified Wireless Network Expert
cwnp®
CWAP Certified Wireless Analysis Professional
cwnp®
CWDP Certified Wireless Design Professional
cwnp®
Cisco CCNP Enterprise Cisco Certified Network Professional Wireless
Cisco®
Cisco CCNP Wireless Cisco Certified Network Professional Wireless
Cisco®
Cisco Certified Specialist: Enterprise Core, Enterprise Wireless Design and Enterprise Wireless Implementation
Cisco
CWSP Certified Wireless Security Professional
cwnp®
CWNA Certified Wireless Network Administrator
cwnp®
Cisco CCNA Wireless Cisco Certified Network Associate Wireless
Cisco®
Cisco CCNA Routing and Switching Cisco Certified Network Associate Routing and Switching
Cisco®
Profile
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