Network Design & Optimization
Good network design is invisible to subscribers and invaluable to operators. We engineer ISP networks from the ground up and optimise existing infrastructure to carry more traffic, fail more gracefully, and scale without emergency redesigns. From BGP policy to GPON split ratios, our engineering is grounded in the practical realities of running a live operator.
Engineering that performs under real-world conditions
Lab-perfect designs break in production. Our engineering team has run live operations, handled peak-hour congestion events, managed fibre cut failovers, and recovered from misconfigured BGP policies. That experience shapes everything we design for clients — conservative where it matters, aggressive where it creates value.
Engagements begin with a detailed review of your current topology, routing configuration, traffic profiles (NetFlow analysis), and capacity headroom. From that baseline we identify optimisation opportunities and structural risks, then produce a documented target architecture with a phased migration path that avoids service disruption.
- ✓ Core and edge topology design (routed, MPLS-ready)
- ✓ BGP policy design, prefix filtering, community strategy
- ✓ FTTH/GPON network planning and OLT configuration
- ✓ PTP/PTMP wireless link budgets and frequency planning
- ✓ IPv4 conservation and IPv6 dual-stack deployment
- ✓ Redundancy and fast-failover design (BFD, ECMP, FRR)
NetFlow/IPFIX analysis of traffic matrices, current routing table review, and link utilisation profiling across peak and off-peak periods.
Produce detailed logical and physical design documents including device roles, protocol selection, addressing plan, and redundancy model.
Vendor-specific configuration templates for routers, switches, and OLTs. Lab validation where feasible before production push.
Change-managed implementation with rollback plans, post-change verification testing, and as-built documentation for your team.
Full-spectrum network engineering for ISPs
From access layer to IX peering, we cover every technical domain a growing operator needs.
BGP Design & Policy
We design eBGP and iBGP architectures that give you traffic engineering control over your upstream transit, IXP peers, and downstream customers. Route policy includes community-based traffic steering, prefix filtering with IRR validation (RPKI), MED tuning, and local-preference strategy to optimise cost and performance simultaneously.
FTTH / GPON Planning
End-to-end FTTH network design covering feeder and distribution fibre routes, OLT placement and capacity planning, splitter ratios, ONT selection, and power budget calculations. We produce the passive optical network (PON) design documentation your field team needs for accurate installation and future fault isolation.
Wireless & PTP Link Budgets
Rigorous link budget analysis for point-to-point (PTP) microwave and point-to-multipoint (PTMP) wireless deployments. We calculate Fresnel zone clearance, rain fade margin, antenna gain requirements, and interference risk — then specify equipment, mounting height, and polarisation to meet your availability SLA.
Core Routing Optimization
Systematic tuning of your IGP (OSPF or IS-IS) to reduce convergence times, eliminate sub-optimal routing paths, and improve traffic distribution across equal-cost links. We also review and correct MPLS LDP/RSVP configurations for operators running L2/L3 VPN services, ensuring CEF and FIB consistency across the core.
IPv4 Conservation & IPv6 Deployment
IPv4 exhaustion is a present-day operational constraint, not a future concern. We design CG-NAT deployments (NAT444, DS-Lite, MAP-E) to extend your existing IPv4 pool while simultaneously planning your dual-stack IPv6 deployment — including prefix delegation, DHCPv6, SLAAC, and customer CPE strategy.
Redundancy & Failover Design
Networks that fail gracefully protect subscriber experience and SLA commitments. We design multi-homed uplink configurations, BFD-assisted fast reroute, ECMP load distribution, VRRP/HSRP gateway redundancy, and diverse physical path routing — with documented failover test plans to verify every protection mechanism before incidents test it for you.
For operators who take engineering quality seriously
ISPs Planning Infrastructure Expansion
New city, new PoP, or new last-mile technology? We design the network before you cut fibre or mount dishes, so capacity, redundancy, and integration with your existing core are solved on paper — not in production emergencies.
Operators With Legacy Architecture Debt
Networks that grew organically often have flat routing designs, single points of failure, and misconfigured BGP that costs real money in sub-optimal transit usage. Our optimisation engagements deliver measurable improvements to cost, resilience, and performance without requiring a full redesign.
WISP and Hybrid Operators
Wireless ISPs face unique design challenges around spectrum management, interference, and link reliability. We bring both RF and IP networking expertise to WISP engagements — covering the radio access layer through to core routing — giving you a coherent end-to-end design rather than disconnected point solutions.
Operators Preparing for IPv6
Regulatory pressure and IPv4 cost are making IPv6 unavoidable. We plan dual-stack deployments that work with your existing CPE and RADIUS environment, minimising subscriber impact while positioning you ahead of the operators still running out of NAT pool addresses.
Design it right the first time.
Share your current topology and growth goals. We'll identify the highest-value engineering improvements in a single technical review session.