private BandwidthHistory parseHistory() {
final Timestamp ts = fieldParser.parseTimestamp();
final String nsec = fieldParser.parseString();
fieldParser.parseString();
final int interval = fieldParser.parseInteger(nsec.substring(1));
final BandwidthHistory history = new BandwidthHistory(ts, interval);
if(fieldParser.argumentsRemaining() == 0)
return history;
final String[] samples = fieldParser.parseString().split(",");
for(String s: samples)
history.addSample(fieldParser.parseInteger(s));
return history;
}