---
title: "PUT /config/lfn/chanPlan/bcast"
method: PUT
path: "/config/lfn/chanPlan/bcast"
---

# PUT /config/lfn/chanPlan/bcast

`PUT /config/lfn/chanPlan/bcast`

Configure LFN broadcast channel plan details. This method may only be issued to a Border Router.

## Request body

- BcastChanPlanLfn — Broadcast channel plan specification for LFNs.
  - `bcastInterval` integer, required — Set as specified in [FANTPS] LBS-IE description.
  - `bcastSyncPeriod` integer, required — Set as specified in [FANTPS] LBS-IE description.

## Response `200`

Channel plan successfully configured.

## Other responses

- `400` — Device is not an LBR.
- `default` — Unknown error occurred.

## Changes

- **2025-01-07** `fa086964a1b1` — 1 info
  - endpoint added
- **2023-07-24** `11bc7842d64c` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/siliconlabs/apis/tbu-api/changes/config/lfn/chanPlan/bcast/put.md)

---

[API](https://skmtc.dev/siliconlabs/apis/tbu-api.md) · [All operations](https://skmtc.dev/siliconlabs/apis/tbu-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/siliconlabs/tbu-api/revisions/8475de394ee2/schema)