Cisco Systems 5, NAM manual NDE Interface Capacity, Dscp Groups, Creating an NDE Interface

Chapter 2 Setting Up The NAM Traffic Analyzer

Network

NDE Interface Capacity

After you have set up NetFlow data sources (see NetFlow, page 2-18), you can go to the NDE Interface Capacity screen at Setup > Network > NDE Interface Capacity to specify the speed of each interface. This allows the NAM to calculate interface utilization on the NDE Interface Traffic Analysis screen (Analyze > Traffic > NDE Interface). Otherwise, the NAM can only display the throughput of the interface, but cannot show its utilization.

You can click Edit to edit the interface. You can edit the name (for example, WAN link to Boston) and speed of the interface.

The interface name and speed will be automatically discovered by the NAM if you configure the router’s SNMP credentials in Setup > NAM Data Sources > Create > Type: NETFLOW.

Creating an NDE Interface

To add an interface, at the NDE Interface Capacity screen (Setup > Network > NDE Interface Capacity), click the Add button. Then fill in the fields as described in Table 2-30, Add NDE Interface.

Note It is normally not necessary to manually create NDE interfaces. They will be discovered automatically when the device sends NDE packets to the NAM.

Table 2-30	Add NDE Interface
Field		Description
Device		Enter the IPv4 or IPv6 address.
ifIndex		Unique identifying number associated with a physical or
		logical interface. Valid characters: 0-9.
ifName		Name of the interface. Valid characters are A-Z, a-z, 0-9
ifSpeed(Mbps)		An estimate of the interface’s current bandwidth in bits per
		second.

DSCP Groups

Differentiated services monitoring (DiffServ) is designed to monitor the network traffic usage of Differentiated Services Code Point (DSCP) values. To monitor DSCP, you must configure at least one aggregation profile, and one or more aggregation groups associated with each profile. This section describes how to set up the DSCP groups.

You can define two or three different groups of traffic, and assign the various DSCP values to each group. Or you can assign one particular value for the first group and give it a name, and then assign all the rest to the other (or default) group and give that a name.

For detailed information about setting DSCP values, see Implementing Quality of Service Policies with DSCP: http://www.cisco.com/en/US/tech/tk543/tk757/technologies_tech_note09186a00800949f2.shtml

	User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
2-64	OL-22617-01