Nile SLAs

The Nile Access Service provides a comprehensive set of Service Level Agreements (SLAs) to ensure the reliability and performance of the network infrastructure. Our goal is to eliminate complexity and provide a simple, scalable, and secure network that doesn’t need configuration (by humans). We want to ensure the service is always-on. To achieve this we have taken an outside-in approach using physical and virtual sensors that are deployed across the Nile network (including APs and switches). We call this the "outside-in approach" because of its simplicity and the ability to easily verify the Nile sensor data. Nile measures and guarantees these SLAs on a per-building basis, providing customers with visibility and accountability into service delivery. If a Nile network within a building does not meet its commitment, customers are eligible to receive service credits towards future monthly billing cycles as outlined in Nile’s service contract.



Nile’s performance guarantee is designed to continuously validate the following in real-time and is backed by a 99.95% commitment on a per-building basis:

This allows Nile to take action, ensuring that service quality is proactively maintained per site, as each location is viewed and treated separately.

The first piece of the puzzle is the use of physical and virtual sensors deployed alongside Wi-Fi access points (APs). The sensors act like synthetic user devices providing us an outside-in view for a high degree of visibility. As a group, the sensors continuously run tests every minute to discover any issues related to network and application performance.



In this instance, physical sensors are used to send probes throughout the network, identifying the availability of all connected network elements. When physical sensors are not being used, the dedicated radio in Nile APs assumes the responsibility of performing this health check and sending these probes.

When responses are received, it is considered a “good” minute and if not, we record a “bad” minute. The number of good minutes per month is used in the following formula to determine if the Nile Access Service deployed within that environment has met its target:

Availability = (# good minutes / # total minutes) * 100%

The Coverage SLA measures the availability of voice-quality signal strength. Nile considers a signal strength of -67 dBm or above as the threshold for voice quality. Nile's wall-pluggable sensors measure the Received Signal Strength Indicator (RSSI) of the Nile APs. If the RSSI during a minute is equal to or better than -67 dBm, the sensors declare the minute as "good"; otherwise, they declare the minute as "bad". The number of good and bad minutes are aggregated across all the sensors in a building, and the Coverage is calculated as a percentage of good minutes out of the total minutes.



In the above image, the sensor on the top cannot see a single AP with -67 dBm or better (the best signal it can see is -70 dBm). This is reported as a bad minute

Similar to monitoring coverage performance, Nile’s sensors continuously scan the 5GHz band, reporting on each AP that is seen, along with its advertised BSSID (Basic Service Set Identifier).

Nile considers the availability of a defined number of access points (APs) as an indication of the wireless capacity. Nile's wall-pluggable sensors scan for Nile APs and report their availability to the Nile cloud. The Nile APs also send their availability by reporting their advertised BSSID (Basic Service Set Identifier) to the Nile cloud every minute. Nile combines these data points and counts the number of APs that are both advertised and seen by the Nile sensors. If the resulting number of APs seen is equal to the defined number, then Nile declares the minute as a "good" minute; otherwise, it is declared as a "bad" minute. The Capacity is calculated as the percentage of good minutes out of the total minutes.

The Monthly Uptime Status Percentage is calculated as the average of the Availability, Capacity, and Coverage SLAs for the corresponding month. Nile currently guarantees a 99.95% monthly uptime across these three metrics.

Nile does not guarantee SLAs during the following conditions:

By providing these comprehensive SLAs and clearly defining the exceptions, Nile ensures that customers can rely on the Nile Access Service to deliver a consistent and reliable network experience.

Due to the rising demand for real-time applications like video conferencing, which require high-bandwidth connectivity for mobile users, today’s networks must prioritize availability, coverage, and capacity more than ever.

Nile is the only vendor who guarantees the service and provides service credits if it does not meet those guarantees that are measured from the end-user perspective.