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Comwave and Rogers · 2020 to 2026
Network, monitoring and security
I started on the network side and stayed close to it. This covers the core moves I worked on, the move to a new monitoring system, and security reviews of the voice and IPTV estate.
Network queue146 hours, 152 items
MonitoringSolarWinds to OpenNMS, 37 hours
SecurityLinux systems scan, 61 hours
SinceNetwork role from Jun 2020
Junior network administrator
June 2020 to June 2021: Level 3 support to the NOC with weekly on-call, root cause analyses for network-wide events, core and backbone maintenance including internet exchange bundles and IP blocks, and firewall firmware and Layer 2/3 changes.
Core and data-centre moves
- Services-core refresh (28 hours): IPTV source migration, global VLAN migration, DNS traffic re-route, and management and access switch moves to the new cores.
- Switch end of support (27 hours): moved the cloud-recording managers and streamers to the new data-centre switches, including the database move.
- Backbone upgrade (23 hours): supported the core router upgrades to 24.2.2.
- Tunnel aggregators (15 hours): VPN migration batches and certificate renewals.
- IP transit BGP maintenance, and work on the IPTV VPN.
SolarWinds to OpenNMS
Moved voice monitoring to OpenNMS between November 2023 and October 2025 (37 hours).
- Added production and pre-production voice nodes tier by tier.
- Added SBC capacity graphs to the new monitoring.
- Wrote the process for adding nodes into the wiki.
- Owned 36 problem records through to root cause.
Security reviews and hardening
- Scanned the Linux voice and IPTV systems (61 hours) and cleaned up routes on the SBCs (2024).
- Reviewed publicly reachable IPTV and voice hosts (15 hours, 2023).
- Patched firewalls for published vulnerabilities (2023 to 2025).
Stack
Cisco ASRCisco NexusFortiGateBGPOSPFVLANOpenNMSLinux