public Integer getSocketBufferSize() {
    return socketBufferSize;
  }
get the socket buffer size for socket buffers from the receiver to the sender.
CacheServer.DEFAULT_SOCKET_BUFFER_SIZE = 32768;

@return the socket buffer size for socket buffers from the receiver to the sender
geode-management/src/main/java/org/apache/geode/management/configuration/GatewayReceiver.java