private void btnStartMonitor_Click(object sender, RoutedEventArgs e)
{
if ((bool)cbStartWithFile.IsChecked)
{
//读取xml保存的interface列表来生成监视
string fileFullName = ucFileBrowse.FileUrl;
XmlDocument myXml = new XmlDocument();
myXml.Load(fileFullName);
XmlNode rootNode = myXml.DocumentElement;
ObservableCollection <Interface> ifList = new ObservableCollection <Interface>();
foreach (XmlNode nodeIf in rootNode.ChildNodes)
{
int ifIndex = int.Parse(nodeIf.ChildNodes.Item(0).InnerText);
string ifDescr = nodeIf.ChildNodes.Item(1).InnerText;
IpAddress ip = new IpAddress(nodeIf.ChildNodes.Item(2).InnerText);
double timerInteral = double.Parse(nodeIf.ChildNodes.Item(3).InnerText);
bool isShowSpeedAlarm = nodeIf.ChildNodes.Item(4).InnerText.Equals("True") ? true : false;
Interface i = new Interface(ip);
i.IfIndex = ifIndex;
i.Descr = ifDescr;
i.IP = ip;
i.TimerInteral = timerInteral;
i.IsShowSpeedAlarm = isShowSpeedAlarm;
if (isShowSpeedAlarm)
{
double maxOutSpeed = double.Parse(nodeIf.ChildNodes.Item(5).InnerText);
double maxInSpeed = double.Parse(nodeIf.ChildNodes.Item(6).InnerText);
i.MaxInSpeed = maxInSpeed;
i.MaxOutSpeed = maxOutSpeed;
}
ifList.Add(i);
}
Thread threadPortMonitorPage = new Thread(() =>
{
PortMonitor portMonitor = new PortMonitor(ifList);
portMonitor.Show();
});
threadPortMonitorPage.SetApartmentState(ApartmentState.STA);
threadPortMonitorPage.IsBackground = true;
threadPortMonitorPage.Start();
}
else
{
//使用listbox中的列表来打开
if (selectedIFs.Count < 1)
{
MessageBox.Show("至少要选择一个接口！");
return;
}
ObservableCollection <Interface> ifList = new ObservableCollection <Interface>(selectedIFs);
Thread threadPortMonitorPage = new Thread(() =>
{
PortMonitor portMonitor = new PortMonitor(ifList);
portMonitor.ShowDialog();
});
threadPortMonitorPage.SetApartmentState(ApartmentState.STA);
threadPortMonitorPage.IsBackground = true;
threadPortMonitorPage.Start();
selectedIFs.Clear();
}
}
private void ConstructListByIP(IpAddress agentIP, string equipName)
{
if (string.IsNullOrEmpty(equipName))
{
try
{
equipName = App.idAndEquipList[App.ipAndIPinfoList[agentIP.ToString()].EquipIndex].Name;
}
catch { }
}
ocInterfaces.Clear();
OctetString community = new OctetString(App.snmpCommunity);
AgentParameters param = new AgentParameters(community);
param.DisableReplySourceCheck = !App.snmpCheckSrcFlag;
// Set SNMP version to 2 (GET-BULK only works with SNMP ver 2 and 3)
param.Version = SnmpVersion.Ver2;
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agentIP, App.snmpPort, App.snmpTimeout, App.snmpRetry);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid("1.3.6.1.2.1.2.2.1.1"); // ifIndex
// This Oid represents last Oid returned by
// the SNMP agent
Oid lastOid = (Oid)rootOid.Clone();
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.GetBulk);
// In this example, set NonRepeaters value to 0
pdu.NonRepeaters = 0;
// MaxRepetitions tells the agent how many Oid/Value pairs to return
// in the response.
pdu.MaxRepetitions = 5;
// Loop through results
while (lastOid != null)
{
// When Pdu class is first constructed, RequestId is set to 0
// and during encoding id will be set to the random value
// for subsequent requests, id will be set to a value that
// needs to be incremented to have unique request ids for each
// packet
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
// Clear Oids from the Pdu class.
pdu.VbList.Clear();
// Initialize request PDU with the last retrieved Oid
pdu.VbList.Add(lastOid);
// Make SNMP request
SnmpV2Packet result = null;
try
{
result = (SnmpV2Packet)target.Request(pdu, param);
}
catch (Exception ex)
{
MessageBox.Show("获取SNMP应答出现错误\n" + ex.Message);
target.Close();
return;
}
// You should catch exceptions in the Request if using in real application.
// If result is null then agent didn't reply or we couldn't parse the reply.
if (result != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
MessageBox.Show(string.Format("SNMP应答数据包中有错误。 Error {0} index {1}", result.Pdu.ErrorStatus, result.Pdu.ErrorIndex));
lastOid = null;
break;
}
else
{
// Walk through returned variable bindings
foreach (Vb v in result.Pdu.VbList)
{
// Check that retrieved Oid is "child" of the root OID
if (rootOid.IsRootOf(v.Oid))
{
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid = null;
}
else
{
lastOid = v.Oid;
}
Integer32 f = v.Value as Integer32;
Interface intf = new Interface(agentIP);
intf.EquipName = equipName;
//intf.TimerInteral = double.Parse(cbbTimerInterval.Text);
ocInterfaces.Add(f, intf);
}
else
{
// we have reached the end of the requested
// MIB tree. Set lastOid to null and exit loop
lastOid = null;
break; // 每个数据包获取5个值，一旦有一个不是这一列的数据，后面的应该都不是了
}
}
}
}
else
{
MessageBox.Show("指定网管代理未返回有效信息");
}
}
target.Close();
string errorMessage;
foreach (Integer32 i in ocInterfaces.Keys)
{
string strOid = "1.3.6.1.2.1.2.2.1.2." + i.ToString();
VbCollection vbc = SnmpHelper.GetResultsFromOids(agentIP, new string[] { strOid }, out errorMessage);
ocInterfaces[i].Descr = vbc[0].Value.ToString();
ocInterfaces[i].IfIndex = i;
}
}
