---
title: "How does a Frame Relay Work?"  
description: "How does a Frame Relay Work?"  
author: "Rahul Roi"  
published: 2021-01-22  
updated: 2021-01-22  
canonical: https://www.mindstick.com/forum/156399/how-does-a-frame-relay-work  
category: "network"  
tags: ["computer science", "networking", "hardware & networking"]  
reading_time: 2 minutes  

---

# How does a Frame Relay Work?

How does a [Frame](https://www.mindstick.com/articles/749/html-frames) [Relay](https://www.mindstick.com/forum/156398/what-are-the-different-features-of-frame-relay) Work?

## Replies

### Reply by Anonymous User

The **FR(Frame Relay)** supports the multiplexing of traffic from multiple connections over a shared physical link.

It involves the use of hardware components, such as packing data from router frames, bridges, and switches, etc. into individual frame relay messages.

Here, Every connection uses a 10_bit **Data_Link_Connection_Identifier(DLCI)** for unique channel addressing. There are two types of connections:

The **PVCs(PermanentVirtualCircuits)** for persistent connections intended to be maintained for long periods even if data is not actively transferred.

The **SVCs(SwitchedVirtualCircuits)** for temporary connections that last only one session.

The **FrameRelay** then places the data in a variable-size unit called a frame and leaves any necessary error correction (data retransmission) until the endpoints, speeding up the overall transmission of data.

## The Features of frame relay:

- The FrameRelay operates at a high speed (1.544 Mbps to 44.376 Mbps).
- The FrameRelay operates only in the physical and data link layers. ...
- This allows the bursty data.
- That has a large frame size of 9000 bytes. ...
- The FrameRelay can only detect errors (at the data link layer). ...
- The damaged frame is simply dropped.


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Original Source: https://www.mindstick.com/forum/156399/how-does-a-frame-relay-work

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