CelesTech Infra
Insights
Case studies, technical articles, and reference material for infrastructure leaders.
Case studies
Infrastructure programs, examined.
Engineering decisions, constraints, and outcomes presented as confidentiality-safe case files.
Hyperscale Data Center Backbone Modernization
A multi-site backbone modernization program focused on capacity expansion, resiliency, and controlled production migration.
Read case study →400G Fabric Production Readiness
A spine-leaf fabric upgrade prepared for production traffic through structured readiness gates and operational handoff.
Read case study →GPU / RoCE Network Validation
A GPU cluster network validation program focused on lossless Ethernet behavior, congestion visibility, and production readiness.
Read case study →Regional Edge Network Standardization
A multi-region edge program aligning POP design, turn-up procedures, and operational handoff around one repeatable standard.
Read case study →BGP Peering Policy Migration
A phased migration of multi-homed edge and backbone BGP policy to a standardized, automation-ready community model.
Read case study →BGP Convergence & Incident Remediation Program
A reliability program addressing recurring BGP convergence delays, path-selection events, and incident-response gaps.
Read case study →Resources
Checklists and technical guides
Self-assessment checklists and solution guides for AI networking, automation, observability, and data center programs.
Articles
Technical perspectives
Architecture, operations, and delivery guidance for infrastructure leaders.
Articles
Designing for Reliability in Large-Scale Infrastructure Programs
Failure domains, rollback discipline, and operational readiness for multi-site infrastructure programs.
Automation Without Breaking Production
An incremental approach to infrastructure automation for teams that cannot afford experimental change in production environments.
EVPN/VXLAN Explained for Executive Infrastructure Teams
What modern data center fabrics solve, what operational complexity they introduce, and how to evaluate fabric refresh decisions.
DWDM Fundamentals for Infrastructure Leaders
Optical transport concepts that matter for backbone, DCI, and capacity decisions — OSNR, protection, and lead times.
BGP Policy as Infrastructure API
Why routing communities, standardized policy templates, and change discipline matter for production BGP operations.
Edge Network Design for Distributed Infrastructure
Architecture and operational considerations for regional edge sites — peering adjacency, resiliency, and standardized turn-up.
Capacity Planning for Backbone and DCI Links
How to set utilization targets, model growth, and manage lead times for WAN, DCI, and backbone capacity decisions.
From MOPs to Automated Infrastructure Workflows
How to prioritize which operational procedures to automate first — and when not to automate.
GPU Cluster Networking: What to Validate Before Production
A practical validation framework for RoCE and high-performance Ethernet fabrics before GPU workloads go live.
Power and Cooling as Network Design Inputs in AI Facilities
Why GPU density changes cable plant, rack layout, and fabric planning — and what infrastructure leaders should align early.
Data Center Migration: Common Pitfalls and Lessons Learned
What infrastructure leaders get wrong during data center migrations—and how to plan for business continuity, technical risk, and clean cutovers.
Designing Infrastructure for AI at Scale
What changes when you move from a single GPU cluster to a production AI platform—and how to plan for it early.
What to Evaluate Before a Data Center Migration
A practical framework for de-risking migrations across colocation, hyperscale, and hybrid environments.
Building Observability Into Infrastructure Operations
Why telemetry should be part of the build, and how to turn signals into operational confidence.
The Hidden Cost of Under-Provisioned East-West Bandwidth
Why average utilization misleads on AI and storage fabrics — and how network bottlenecks show up as GPU idle time and missed SLAs.
RoCE vs InfiniBand: A Decision Framework for Infrastructure Leaders
How to evaluate GPU fabric options with business and technical tradeoffs — without defaulting to vendor preference or hype.
Resource library
Reference material for infrastructure teams
Checklists, guides, and playbooks for planning and delivery.
Readiness Checklists
AvailableInfrastructure and deployment readiness self-assessments.
Technical Guides
AvailableAI networking, automation, observability, and data center transformation.
Operational Playbooks
SoonField-tested approaches to running infrastructure at scale.