> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/glossary/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/glossary/s/subnet.md). # Subnet A subnet, short for subnetwork, is a portion of a larger network that is divided into smaller, more manageable network segments. Subnets are created by using a subnet mask, which is a 32-bit value that is used to identify the network portion and host portion of an IP address. The subnet mask is applied to an IP address to determine which bits represent the network portion and which bits represent the host portion. By creating subnets, network administrators can better manage network traffic, improve network security, and allocate IP addresses more efficiently. Subnets can be used to isolate specific parts of a network, create logical groupings of devices, or to control access to network resources. Subnets can be connected to each other through routers, which allow devices on one subnet to communicate with devices on another subnet. This enables larger networks to be divided into smaller, more manageable segments that can be more easily maintained and secured. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.console.zenlayer.com/glossary/s/subnet.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.