> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/welcome/elastic-compute/networking/01-overview/06-billing-direction.md).

# Billing Direction

Public network billing meters traffic in a specific direction. **Egress** (outbound) traffic — bytes leaving Zenlayer toward the internet — is what you pay for. Ingress (inbound) traffic is generally not billed; only the 95th-percentile methods look at both directions and take whichever is larger.

Traffic that never leaves Zenlayer's network — VPC-to-VPC, same-region private IP, Cross-Region Network default mesh — is outside public network billing entirely, in any direction.

## Direction by billing method

<table><thead><tr><th width="260">Billing method</th><th>Metered direction</th></tr></thead><tbody><tr><td><a href="/pages/iIqlhlA7d3e6hg5erHXu">Flat Rate</a></td><td><strong>Egress</strong> (outbound)</td></tr><tr><td><a href="/pages/L1yZedvLsAgFipcEmF8c">Data Transfer</a></td><td><strong>Egress</strong> (outbound) — inbound is not counted</td></tr><tr><td><a href="/pages/Tqzv1RcMc2krn3n5VwDX">Aggregated Burstable 95th</a> / Bandwidth Cluster</td><td><strong>Larger of egress and ingress</strong>: <code>billable 95th = max(ingress 95th, egress 95th)</code></td></tr></tbody></table>

## Notes

* **Flat Rate** and **Data Transfer** bill on **egress** only. Inbound traffic is not metered.
* The **Burstable 95th** methods (Aggregated Burstable 95th and Bandwidth Cluster) sample ingress and egress separately, take each direction's 95th percentile, and bill the **larger** of the two.