H3C Technologies H3C Intelligent Management Center User Manual

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In the Description field, enter a description for this device.

In the SNMP Community field, modify the SNMP read community string.
This field must match the SNMP read community string that is configured on the device that is being
added. The configuration takes effect on only devices with SNMPv1 or SNMPv2c enabled. For a

device with SNMPv3 enabled, you must configure the device IP by selecting a device IP and
correctly configure the SNMPv3 parameters of the device in the IMC Platform.

In the SNMP Port field, modify the UDP port number that is being used to SNMP poll the device.
The value you enter in this field must match the port number that is configured on the device that is
being added. The default value for this field and for SNMP polling is 161.

In the Log Source IP field, add or modify 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 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.

From the NetStream Statistics Identifier list, select Valid 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.

Select Enable from the NetStream New Feature list if you are adding a device that supports

NetStream Sampling Feature, and go to step 11. 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 in 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.

10.

Modify the NetStream sampling rate.
The configuration takes effect on only devices that do not support NetStream New Feature. 1
indicates that the sampling rate is 1:1, and 100 indicates that the sampling rate is 1:100. The

sampling rate configuration must be the same as that of the device. Otherwise, traffic statistics
errors occur.

11.

Select whether to enable sFlow for the device.
You can enable sFlow only for devices added to NTA through selecting IPs. After enabling sFlow,
you must set the sFlow sampling rate and interfaces with sFlow enabled.

•

Sample Rate—Enter the rate at which sFlow samples packets. 1000 indicates that the
sampling rate is 1:1000.