From PQC Awareness to Operational Planning
Cisco’s article explains the thinking behind Post-Quantum Cryptography for Dummies—Cisco Special Edition. The resource is intended as a starting point for IT teams seeking to understand post-quantum cryptography (PQC) and address the complexities associated with quantum computing.
For network teams, that starting point should lead to a practical question: How can cryptographic changes be introduced across multi-vendor infrastructure without losing visibility, access, or control?
PQC readiness is not simply a discussion for application developers or security architects. Network infrastructure also depends on cryptography for administrative access, device communication, automation, credentials, and other management workflows. Any future transition therefore needs to account for both production traffic and the channels used to operate the network itself.
Start With an Infrastructure Inventory
A team cannot plan cryptographic upgrades around assets it cannot identify. The first phase should establish an accurate view of:
Network devices, firewalls, appliances, and management systems
Vendors, models, software versions, and lifecycle status
Configuration baselines and dependencies between assets
Administrative and automation paths used to manage devices
Owners and operational responsibilities for each system
This inventory creates the foundation for later vendor assessments and upgrade decisions. It also helps separate devices that may be updated from those that may eventually require replacement.
Include the Management Plane
Cryptographic migration planning can fail if it focuses only on user-facing services. Network teams should also document how administrators, scripts, and operational tools connect to infrastructure.
Review management paths such as:
Interactive administrative sessions
Automated configuration and provisioning jobs
Configuration backup and restoration workflows
Credential storage and distribution
Monitoring and asset-discovery connections
Communication between network and security appliances
The goal is not to make immediate protocol changes based on early awareness material. It is to identify dependencies so that future changes can be tested without unexpectedly disrupting access or automation.
Build a Controlled Upgrade Process
Because PQC is a developing area, network teams should avoid treating readiness as a single replacement project. A staged process is more manageable:
Discover: Build a current asset and configuration inventory.
Classify: Group assets by function, criticality, vendor, lifecycle, and management method.
Track: Monitor vendor guidance and relevant security information for each asset.
Test: Validate changes in a limited environment, including management access and rollback.
Document: Record approved configurations, exceptions, and evidence for audits.
Deploy gradually: Use controlled automation and verify each stage before expanding it.
Reassess: Update the plan as products, guidance, and organizational requirements evolve.
Configuration history is particularly important. Cryptographic changes can affect compatibility between systems, so teams need a reliable record of what changed and a practical route back to a known configuration.
Connect PQC Readiness to Governance
A PQC workstream should not operate separately from existing security and compliance programs. Inventory records, configuration standards, change approvals, exceptions, and lifecycle decisions can all become part of the organization’s evidence base.
Teams can begin by defining:
Who owns the cryptographic transition for network infrastructure
How vendor guidance will be reviewed and recorded
Which assets should receive priority based on role and lifecycle
What testing and rollback evidence is required before deployment
How exceptions and unsupported equipment will be handled
This turns a broad technology discussion into a repeatable operational process.
How ConnectMyAssets Helps
ConnectMyAssets provides an on-prem, vendor-agnostic foundation for managing the infrastructure information needed for cryptographic transition planning.
Dynamic CMDB centralizes multi-vendor asset, software, and configuration records.
Backup & History preserves configuration versions and supports one-click rollback when a tested change must be reversed.
Compliance Engine helps teams assess configurations against internal requirements and frameworks such as NIS2, ISO 27001, PCI, CISA, and NIST.
End-of-Life Tracking highlights assets whose lifecycle may constrain future upgrade options.
Per-Asset CVE Tracking connects security issues to the equipment affected.
Automation & ZTP supports controlled, repeatable deployment after changes have been approved and tested.
Credential Vault and SSH Bastion help govern administrative access during migration work.
The purpose is not to predict which PQC capabilities every vendor will deliver. It is to give network teams a trustworthy inventory, configuration history, compliance workflow, and deployment process so they can act when validated guidance and supported upgrades become available.
Use the Resource as the Beginning
Cisco presents its PQC publication as a starting point, and network teams should use it that way. Begin with education, then translate the subject into asset discovery, dependency mapping, lifecycle planning, testing, rollback, and governance.
The organizations best prepared for future cryptographic change will be those that already know what they operate, how it is managed, and how to update it safely.
Source: Cisco
