Bandwidth Optimization: Stop Overpaying for Capacity You Do Not Use
Most enterprises use 30-50% of their provisioned bandwidth. Right-sizing circuits can save $50,000-200,000 annually.
Bandwidth is one of the most over-provisioned telecom services in enterprise IT. The instinct to buy more than you need (just in case) results in circuits running at 30-50% utilization while billing at 100%. Right-sizing your bandwidth to actual usage patterns delivers immediate savings without impacting performance.
The Over-Provisioning Problem
Why It Happens
The Financial Impact
A 1 Gbps dedicated internet circuit costs $500-1,500 per month depending on carrier and location. If average utilization is 200 Mbps, a 500 Mbps circuit at $300-700 per month delivers the same user experience at half the cost. Across 20 sites, that is $48,000-192,000 per year in savings.
How to Assess Bandwidth Needs
Step 1: Measure Actual Usage
Deploy SNMP monitoring on your edge routers or use carrier-provided utilization reports. Measure for at least 30 days to capture weekly patterns. Track:
Step 2: Identify the 95th Percentile
Most carrier SLAs and burstable billing use 95th percentile measurement. This means your circuit must handle the traffic level exceeded only 5% of the time. If your 95th percentile is 300 Mbps on a 1 Gbps circuit, you are significantly over-provisioned.
Step 3: Factor in Growth
Apply your organization's growth rate to current utilization. If bandwidth demand grows 20% per year, a circuit right-sized today needs to accommodate that growth. Size for 18-24 months of projected growth, not 5 years.
Step 4: Consider Burstable Circuits
Some carriers offer burstable internet where you pay for a base bandwidth commitment but can burst higher during peaks. This is ideal for organizations with variable traffic patterns. You might commit to 200 Mbps (and pay for 200 Mbps) but burst to 500 Mbps when needed.
QoS as a Bandwidth Multiplier
Before buying more bandwidth, ensure your existing capacity is allocated efficiently:
Proper QoS configuration can reduce effective bandwidth requirements by 20-30% without any circuit changes.
The Right-Sizing Process
SpendWire compares your provisioned bandwidth costs against actual utilization data to identify right-sizing opportunities at every location. The analysis considers growth projections, peak usage patterns, and contractual constraints (some carriers allow mid-term downgrades, others do not) to recommend the optimal circuit size for each site.