Resources · Network design

Design and Implementation Team Coordination

Network designs drift out of sync with what is actually running in the network, causing misconfiguration, security hazards, outages, and delays — and there are better ways to keep them updated than costly discovery models.

2 min read·From the blaZop journal

The Design Drift Problem

As network design engineers do stellar job in designing the various network architectures (such as branch network, campus network, WAN network, DMZ network, extranet connectivity, core network, hybrid cloud integration etc.), each architecture also requires defining associated device models & each device configuration segments. The configuration segments are defined as golden-configs or features oriented config-templates.

Why Designs Become Obsolete

Very soon these designs become obsolete & outdated from what is actually running in network. Largely, the possible causes are (not limited to):

These out-of-sync designs further cause misconfiguration, security-hazards, outages, and significant delay in implementing network services.

The Cost of Out-of-Sync Designs

This issue leads to various versions of network designs running in network and yet, none of them complying to the actual designs. This cause huge-cost and deployment-issues in setting up new office or another network segment. These out-of-sync designs further cause misconfiguration, security-hazards, outages, and significant delay in implementing network services.

A Better Way to Stay in Sync

How to keep network designs updated with what's running in network? No, we are not talking about discovery model and spend significant amount of money & effort to learn what's running on network. There are better ways to address it.

If you are interested to know how blaZop platform can help?

How Network Designs Drift Out of Sync

DesignGolden-configs & templatesArchitectures (branch, campus, WAN, DMZ, core, hybrid cloud) defined with device models and config segments
DriftDesigns go staleDesign/ops team split, expensive updates, too-abstract designs, Day-0-only process, slow Design-to-Operate for Day-2 changes
DivergenceMultiple versionsVarious design versions run in the network, none complying with the actual designs
DamageCost & riskMisconfiguration, security hazards, outages, delays, and huge cost deploying new offices or segments
FixKeep designs liveNot a costly discovery model — better ways exist to keep designs synced with the running network

What to remember

  • Network designs (golden-configs, config-templates) quickly become obsolete and outdated compared to what is actually running in the network.
  • Drift stems from organizational splits between design and operations engineers, expensive update costs, overly abstract designs, and design processes used only for Day-0 setup.
  • Out-of-sync designs cause misconfiguration, security hazards, outages, and significant delays in implementing network services.
  • Multiple non-compliant design versions in the network drive huge cost and deployment issues when setting up new offices or network segments.
  • Keeping designs updated does not require expensive discovery-model efforts — there are better ways to address it.

See how the blaZop platform does this — book a demo →

Keep reading