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User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
OL-22617-01
Chapter 2 Setting Up The NAM Traffic Analyzer
Network
The site definition is very flexible and can accommodate various scenarios. The site definition is used
not only for viewing of data, but for data export and data retention as well. Normally, a site is defined
by its subnet(s), but a site can also be defined using the following rules:
• Subnet (IP address prefix)
• Subnet from a data source
• Subnet from a given VLAN of a SPAN data source
• WAE device serving the site
The preferred way to define sites is using subnets, and should be used whenever possible.
Note The same rule cannot be defined in multiple sites.
Note If you are configuring a WAAS device, you will need to add WAAS servers to the NAM. See Auto Create
of New WAAS Devices, page 2-35.
See the following sections to set up sites:
• Definition Rules, page 2-59
• Viewing Defined Sites, page 2-60
• Defining a Site, page 2-61
• Editing a Site, page 2-63
Definition Rules

Specifying a Site Using Subnets

Normally, subnets alone are sufficient to define a site. For example:
Site Data-Center = subnet 172.20.0.0/16
In certain scenarios when there are overlapping IP address spaces in the networks (for example, in
private networks where hosts from different sites have the same IP addresses), then data sources or
VLANs can be used to differentiate the subnets. For example:
Site NewYork = subnet 10.11.0.0/16 from "NDE-NewYork" data source.
Site LosAngeles = subnet 10.11.0.0/16 from "NDE-LosAngeles" data source.
Site Sale-Dept = subnet 10.11.0.0/16 from VLAN 10 of "DATA PORT 1" data source.
Site Finance-Dept = subnet 10.11.0.0/16 from VLAN 12 of "DATA PORT 1" data source.

Specifying a Site Using WAE devices (WAAS Data Sources)

For WAAS traffic, you can define a site associated with a WAE device without specifying the site’s
subnets. Simply select all of the WAAS data sources coming from the WAE device(s) serving that site.
Site SanJose = WAE-SJ-Client, WAE-SJ-CltWAN, and WAE-SJ-Passthrough data sources.
Note We recommend that you use subnets to specify WAAS-optimized sites. Use this method only if the site’s
subnets cannot be determined.