RTCPeerConnection: sctp property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨May 2023⁩.

Thesctp read-only property of theRTCPeerConnection interface returns anRTCSctpTransport describing theSCTP transport over which SCTP data is being sent and received.If SCTP hasn't been negotiated, this value isnull.

The SCTP transport is used for transmitting and receiving data for any and allRTCDataChannels on the peer connection.

Value

ARTCSctpTransport object describing the SCTP transport being used by theRTCPeerConnection for transmitting and receiving on its data channels, ornull if SCTP negotiation hasn't happened.

Example

const peerConnection = new RTCPeerConnection();const channel = peerConnection.createDataChannel("Mydata");channel.onopen = (event) => {  channel.send("sending a message");};channel.onmessage = (event) => {  console.log(event.data);};// Determine the largest message size that can be sentconst sctp = peerConnection.sctp;const maxMessageSize = sctp.maxMessageSize;