---
title: "Maximum acceptable limits"
slug: "maximum-acceptable-limits"
updated: 2026-07-23T10:07:08Z
published: 2026-07-23T10:07:08Z
canonical: "help.8x8.com/maximum-acceptable-limits"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.8x8.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Maximum acceptable limits

The maximum acceptable limits for Network Utility are:

- Packet loss -less than 0.3%
- Jitter rate - less than 20
- Latency - less than 120 ms

## Bufferbloat grades

To identify good vs bad bufferbloat, the speed test applies grades as follows. Milliseconds (ms) refers to an increase in a measure of round trip delay when your connection is fully utilized.

- **A+**: Less than 5 ms (average of down bloat and up bloat)
- **A**: Less than 30 ms
- **B**: Less than 60 ms
- **C**: Less than 200 ms
- **D**: Less than 400 ms
- **F**: 400 ms +

> [!NOTE]
> Note:
> 
> There is no **E** grade for bufferbloat.