IT Operations · Engineering, IT & AI
Should you build or buy Network Configuration & Change Management (NCCM)?
Network Configuration and Change Management (NCCM) software automatically backs up network device configurations, tracks changes over time, enforces compliance against security benchmarks (CIS, PCI, SOC 2), and manages the change approval workflow for network modifications. NCCM tools cover routers, switches, firewalls, and load balancers from multiple vendors, providing version history and diff visualization that manual documentation cannot sustain.
The build-vs-buy decision for NCCM turns on how heterogeneous your network device fleet is — open-source tooling handles homogeneous Cisco and Juniper environments well, but multi-vendor normalization and the compliance audit layer grow the gap with commercial platforms as fleet diversity increases.
Build it, buy it, or bridge?
When building makes sense
The build case for NCCM is genuine and well-documented. Oxidized and RANCID handle configuration backup and versioning for Cisco and Juniper environments in production at multiple organizations. Ansible covers compliance checks and configuration pushes against those same devices. For teams with existing Ansible competency and a reasonably uniform device fleet, the open-source path delivers the core use case — backup, versioning, drift detection — at a fraction of the per-device cost of ManageEngine NCM or SolarWinds NCM. LLMs are making the compliance layer more buildable: natural-language config generation and policy-to-Ansible translation are increasingly feasible in-house. The sweet spot for building is a homogeneous fleet with a team that already knows Ansible and doesn't need GUI-based change-approval workflows or ITSM ticketing integration.
When buying makes sense
Buying makes sense as vendor diversity in your device fleet grows. Multi-vendor normalization is the practical breaking point — parsing configuration syntax consistently across Cisco IOS, Juniper Junos, Fortinet FortiOS, and Palo Alto configurations requires parsers that commercial platforms have already built and maintain with every firmware release. The change-approval workflow with ITSM integration (ServiceNow, Jira) is another area where buying saves significant engineering time. BackBox and ManageEngine NCM also bring pre-built CIS compliance templates that would take months to write from scratch. Beyond baseline config backup, AI-driven pre-change impact analysis is now appearing in commercial NCCM platforms, which means the intelligence gap between open-source and commercial tooling is widening even as the baseline backup function stays evenly matched.
The desk read
Open-source tooling has a real foothold here. Oxidized and RANCID handle config backup and versioning for homogeneous Cisco and Juniper environments, and multiple network teams run these in production alongside Ansible for compliance checks and config pushes. For organizations with strong Ansible competency and a reasonably uniform device fleet, the OSS path covers the core use case at a fraction of the cost of ManageEngine NCM or SolarWinds NCM.
The buy case gets stronger as vendor diversity grows. Multi-vendor normalization, diff visualization across different CLI syntax conventions, and change-approval workflows with ITSM integration are where commercial platforms like BackBox justify their per-device pricing. AI is adding another dimension: natural-language config generation and pre-change impact analysis are appearing in newer NCCM platforms, which means the gap between OSS and commercial is widening on the intelligence layer even as it narrows on the baseline config-backup function.
Frequently asked
What is Network Configuration and Change Management (NCCM) software?
Network Configuration and Change Management (NCCM) software automatically backs up network device configurations, tracks changes over time, enforces compliance against security benchmarks (CIS, PCI, SOC 2), and manages the change approval workflow for network modifications. NCCM tools cover routers, switches, firewalls, and load balancers from multiple vendors, providing version history and diff visualization that manual documentation cannot sustain.
When does building NCCM make sense?
Building is viable for homogeneous Cisco or Juniper environments where Oxidized, Git, and Ansible cover the core backup and compliance use case. Teams with strong Ansible competency can replicate 60-70% of commercial NCCM functionality at a fraction of the per-device cost.
When does buying NCCM make sense?
Buying makes sense as fleet vendor diversity grows. Multi-vendor configuration normalization, ITSM-integrated change approval workflows, and pre-built CIS compliance templates are where commercial platforms like BackBox and ManageEngine NCM justify their per-device pricing.
What are the main NCCM vendors?
Representative vendors include ManageEngine Network Configuration Manager, BackBox, Infosim StableNet, rConfig. B4 Pro scores the full set.