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Solution

Campus networks with a core built to aggregate

Core-to-access design for multi-building campuses — fibre aggregation, Layer 3 routing where it earns its cost, multi-gig backhaul, and consistent Wi-Fi throughout.

  • Ready Stock
  • PAN India Supply
  • Same Day Dispatch*
  • GST Billing
  • BOQ Assistance

*Same-day dispatch applies to in-stock items ordered before cut-off from the Delhi NCR warehouse.

Overview

About campus network solutions

A campus is several buildings behaving as one network. That changes the design from a single flat access layer to a three-tier shape: access switches in each block, fibre aggregation between them, and a core that routes between subnets at wire speed. Get the core and the fibre plant right and the rest scales predictably.

This solution puts a Layer 3 fibre-aggregation core at the centre, ties block switch rooms to it over SFP and SFP+ uplinks, and adds multi-gig PoE where Wi-Fi 7 access points need more than a gigabit of backhaul. VLANs segment departments, guests, and CCTV consistently across every building.

Layer 3 is used where inter-VLAN routing load genuinely warrants it — a campus core — rather than sprinkled across the access layer where it would be wasted budget.

Common Challenges

What this solution solves

Several buildings, one network

Blocks aggregate onto a fibre core so the campus behaves as one managed network, not a set of islands.

Inter-VLAN routing at the core

A Layer 3 core routes between subnets in hardware, avoiding a round trip to the firewall for internal traffic.

Consistent segmentation everywhere

Department, guest, and CCTV VLANs are applied identically across every building for predictable policy.

Wi-Fi 7 backhaul bottlenecks

Multi-gig PoE switching gives modern access points the 2.5G access and 10G uplinks they need.

Fibre plant that must scale

SFP and SFP+ aggregation ties block switch rooms to the core with headroom to add buildings later.

Central management across sites

One management plane across the campus keeps configuration and monitoring consistent between blocks.

Recommended Products

Models that fit this deployment

From the official Lysora catalogue, matched to the requirements above. Final selection is confirmed against your BOQ.

Deployment Workflow

From planning to support

  1. 1. Planning

    We work from your device counts, coverage areas, and growth plans to define the topology, VLAN plan, and power budget before anything is quoted.

  2. 2. Site survey

    Cable routes, rack and cabinet locations, environmental conditions, and existing infrastructure are confirmed — on site or from your drawings.

  3. 3. BOQ & quotation

    A line-by-line bill of quantities with stock status, priced within 24 working hours, with alternatives suggested for anything out of stock.

  4. 4. Installation

    Hardware is dispatched with GST invoice and e-way bill. Installation is handled by your team or your integrator; we supply the equipment and documentation.

  5. 5. Configuration

    VLANs, uplinks, PoE budgets, SSIDs, and management are configured to the plan agreed at the planning stage. Configuration support is available on request.

  6. 6. Testing

    Links, power delivery, roaming, and throughput are verified against the design before handover, so issues surface before the network goes live.

  7. 7. Support

    A named point of contact for stock, RMA, and replacements under the standard manufacturer warranty, serviced in India by Lizora Infotech.

Deployment Considerations

Practical advice for this deployment

  • Adopt a three-tier shape — access in each block, fibre aggregation between them, a Layer 3 core — for anything beyond a single building.
  • Use Layer 3 only where inter-VLAN routing load warrants it (the core), not across the access layer where it is wasted budget.
  • Provision multi-gig access and 10G uplinks where Wi-Fi 7 access points are deployed, so the wired layer is not the ceiling.
  • Apply department, guest, and CCTV VLANs consistently across every building for predictable, portable policy.
  • Plan the fibre plant with spare strands and uplink capacity so new buildings connect without re-architecting the core.

Why Buy From Lizora Infotech

A supply partner, not just a price list

Ready Stock Availability

Fast-moving SKUs held in the Delhi NCR warehouse, with availability confirmed on every quotation.

PAN India Supply Network

Surface and air cargo delivery to every state, with GST invoicing and e-way bills handled end to end.

BOQ & Solution Consultation

Bill-of-quantities reviewed line by line, with alternatives suggested for out-of-stock or discontinued items.

Technical Pre-Sales Consulting

Switch sizing, PoE budgets, VLAN design, and GPON planning reviewed by our technical team before you commit.

Dedicated B2B Sales Support

A named point of contact for quotes, stock checks, and RMA — not a ticket queue.

Before You Enquire

Frequently asked questions

When does a campus need a Layer 3 core?

When inter-VLAN traffic is heavy or a central switch is aggregating several blocks, a Layer 3 core routes between subnets in hardware and avoids a round trip to the firewall. A single building with a firewall usually does not need it.

Layer 2 vs Layer 3 explained

How are separate buildings connected?

Block switch rooms tie back to the core over fibre using SFP and SFP+ uplinks, removing the copper distance limit and giving each building a high-capacity path to the core.

Understanding SFP modules

Do Wi-Fi 7 access points need special switching?

Often, yes. A Wi-Fi 7 access point can exceed a gigabit port, so multi-gig PoE switching with 2.5G access and 10G uplinks prevents the wired layer from capping the wireless capacity.

Wi-Fi 6 vs Wi-Fi 7

Can the campus network grow building by building?

Yes, if the fibre plant and core are planned with headroom. Spare strands and uplink capacity let new blocks connect to the existing core without re-architecting it.

Is central management included?

The switches and access points support central management so configuration and monitoring stay consistent across the campus. The exact management method is confirmed on each product's datasheet at quotation.

Related Resources

Background reading

Guides from our technical team relevant to this deployment.

  • A six-step method for sizing a managed switch — port count, PoE budget, uplinks, switching layer, environment, and management — before the BOQ goes out for pricing.

  • Layer 2 switches forward by MAC address inside VLANs; Layer 3 switches also route between IP subnets in hardware. Where each belongs, and what it costs to choose wrong.

  • Buying Guides

    When a commercial switch is the wrong choice, and how to specify an industrial one: temperature rating, mounting, DC input, ingress protection, and surge tolerance.

  • Product Comparisons

    Wi-Fi 6 (802.11ax) and Wi-Fi 7 (802.11be) compared on channel width, modulation, and Multi-Link Operation — plus the wired upgrade Wi-Fi 7 quietly demands.

  • Buying Guides

    Density before coverage: how to decide access point count, mounting type, power, and backhaul for an enterprise wireless deployment that survives a full office.

  • Networking Basics

    SFP, SFP+, single-mode vs multi-mode, BiDi and DAC explained — how to specify the right optic for a fibre uplink and avoid the usual compatibility traps.

  • Networking Basics

    Why industrial networks are built differently: environment, DC power, redundancy, and the separation of OT traffic from IT traffic on shared cabling.

  • Buying Guides

    A decision tree across the whole switch range — unmanaged, managed, PoE, multi-gig, Layer 3, and industrial — mapping site type to the right class of switch.

Tell us what you need — get a quote today

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Send your requirement, get a quote today

Share a BOQ, a part list, or just a description of the site — our sales team responds within working hours with pricing and stock confirmation.

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