chengfan
Committed by Gerrit Code Review

[ONOS-2233] Tunnel monitoring, measurement and observation

1. tunnel statistics interface

Change-Id: Iffac60ead5273b6a309552be7be10d1cc89bd1d6
/*
*
* * Copyright 2015 Open Networking Laboratory
* *
* * Licensed under the Apache License, Version 2.0 (the "License");
* * you may not use this file except in compliance with the License.
* * You may obtain a copy of the License at
* *
* * http://www.apache.org/licenses/LICENSE-2.0
* *
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS,
* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* * See the License for the specific language governing permissions and
* * limitations under the License.
*
*/
package org.onosproject.incubator.net.tunnel;
import java.time.Duration;
import java.util.List;
/**
* Statistics of a tunnel.
*/
public interface TunnelStatistics {
/**
* Returns the tunnel id.
*
* @return tunnelId id of tunnel
*/
TunnelId id();
/**
* Returns the bandwidth utilization of a tunnel.
*
* @return bandwidth utilization
*/
double bandwidthUtilization();
/**
* Returns the packet loss rate of a tunnel.
*
* @return tunnel packet loss ratio
*/
double packetLossRate();
/**
* Returns the end-to-end traffic flow delay of a tunnel.
*
* @return tunnel flow delay
*/
Duration flowDelay();
/**
* Returns the alarms on a tunnel.
*
* @return tunnel alarms
*/
List<String> alarms();
}