H3C Technologies H3C Intelligent Management Center - Manual (Page 25)

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NTA reads the interface information of the device by using the SNMP Read community string. You
can only configure SNMP Read community strings of SNMPv2 or v2c for devices that are added
manually. For devices that use SNMP Read community strings of SNMPv3, add them by selecting
them from the IMC Platform.
5. In the SNMP Port field, enter the SNMP listening port number for the device. The default value is
UDP port 161.
6. In the Log Source IP field, enter the IP address of the log source for this device. If NTA cannot
access a device through SNMP, you must specify the IP address. Otherwise, you can leave this
field blank. You must specify a unique log source IP address for each device added as a log
source.
IMPORTANT:
If the device you are adding has multiple IP addresses, add only one IP address for the data source device,
and add the device only once to NTA. Do not create multiple instances of the same data source device
using different IP addresses. This will skew the traffic analysis results.
7. Select Valid from the NetStream Statistics Identifier list if you are adding a device that supports
NetStream Statistics Identifier. Select Invalid if you are adding a device that does not support
NetStream Statistics Identifier.
8. Select Enable from the NetStream New Feature list if you are adding a device that supports
NetStream Sampling Feature, and go to step 10. Select Disable if you are adding a device that
does not support NetStream Sampling Feature.
• For a device that supports NetStream Sampling Feature, it adds the sampling rate to the
packets it sends to the NTA server. NTA reverts the data flow according to the sampling rate.
• For a device that does not support NetStream Sampling Feature, it does not add the sampling
rate to the packets it sends to the NTA server.
NOTE:
•
Only IMC/H3C devices running Comware V5 or Comware V7 support NetStream New Feature.
• For Cisco devices, select Invalid from the NetStream Statistics Identifier list, and select Disable from the
NetStream New Feature list.
9. For devices that do not support NetStream New Feature, you must enter the NetStream sampling
rate. The sampling rate you enter must be the same as that you have configured on the device.
Otherwise, traffic statistics errors occur. If you have not configured a sampling rate on the device,
enter 1, which indicates that the sampling rate is 1:1.
10. Click OK to add the device as a data source.
Adding data source devices by selecting devices from the IMC Platform
1. Click Select next to the Device IP field.
The Select Devices dialog box appears.
2. Do one of the following:
• From the Select Devices dialog box, click the By View tab.
Click the Expand icon next to the IP View, Device View, or Custom View, and then select
a subview. All devices in the subview are displayed in the Devices Found area:
{
IP View—Displays all devices that belong to a network segment.
{
Device View—Displays all devices that belong to a device category.