Enter your circuit SLA type and outage start time to get a live countdown to breach, real-time penalty exposure, and current status. Updates every second.
A Service Level Agreement (SLA) breach occurs when a circuit outage exceeds the maximum allowable downtime defined in the service contract. For telecom carriers, the most common SLA metric is Mean Time to Restore (MTTR) — the maximum time allowed to restore service after a reported outage.
When MTTR is exceeded, the carrier owes the customer a financial credit or penalty, typically expressed as a fraction of the Monthly Recurring Charge (MRC). Breaches can trigger automatic credits, dispute resolution processes, and in some cases, contract termination rights.
| SLA Type | MTTR Allowance | Typical Use Case |
|---|---|---|
| 99.9% availability | 8.76 hrs/year | Standard enterprise |
| 99.99% availability | 52.6 min/year | Critical enterprise |
| 99.999% availability | 5.26 min/year | Carrier-grade |
| 4-hour MTTR | 4 hours per incident | Carrier Ethernet MEF |
SLA penalties in telecom contracts are most commonly structured as service credits — reductions in the next invoice rather than cash payments. Common structures include:
Most enterprise SLAs cap total credits at one month's MRC per incident. Credits typically must be requested by the customer within 30–90 days of the incident.
This calculator uses conservative single-tier formulas. Always refer to the actual contract language for precise penalty calculations.