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Introduction 1-20

NAM / Traffic Analyzer v3.5 Tutorial

Introduction 1-20

NAM / Traffic Analyzer v3.5 Tutorial

Network Analysis Modules

Deployment

Network Analysis Modules

Deployment

Security

IDS

IP L2/L3

AAA

Headquarters

Video Surv.

Operations

Content

IP WAN

Branch A

Remote Office

2851

3845

7200

NM-NAM Available for

Cisco Branch Routers

6K-NAM Available for Cisco

Catalyst 6500 Switches and Cisco

7600 Series Routers

NetFlow Data

Export to

6K-NAM

Monitoring remote sites through

web based Traffic Analyzer

NM-NAM

6K-NAM

Firewall IDS

Deployment

Collecting the data you need is made easier and flexible by the functionality of the NAM to be placed where it

is needed and gathers data from either local or remote switches and routers.

Cat6500 NAMs

The Catalyst 6500 series switches and the Cisco 7600 series routers can host the NAM-1 or NAM-2. These

NAMs can collect and display per port layer 2 statistics in conjunction with the mini-RMON on every

interface. More in-depth analysis of LAN ports can be achieved by spanning or copying traffic from ports,

VLANs, or Ether Channels to the embedded NAM or by using VLAN Access Lists (VACL) to mirror data to

the NAM if no spanning sessions are available.

Analysis of remote switches can be achieved using the Remote SPAN (RSPAN) and Encapsulated SPAN

(ERSPAN) features of Catalyst switches. (Refer to Chapter 2 for details on RSPAN and ERSPAN.) Detailed

analysis of WAN ports can also be achieved by using VACLs on a local device or by forwarding NetFlow

data from either the local or a remote device.

The Cat6500 NAMs can monitor traffic running at sub gigabit speeds (NAM-1) and gigabit speeds (NAM-2)

and provide enormous value when deployed at the following areas:

• Distribution or core layer trunk ports

• Service points (for example, in data centers, server farms, or Cisco Call Manager clusters in IP

telephony) where performance is critical

• Critical access points

NM-NAM

The Cisco Branch Routers Series NAM, NM-NAM, is an integrated traffic-monitoring network module for

Cisco 2600XM, 2800, 3660, 3700, and 3800 series access routers that enables network managers to gain

application-level visibility into traffic at remote sites or at the WAN edges to improve network performance,

reduce failures, and maximize returns on investments. It expands the NAM solution available for the Cisco

Catalyst 6500 series and Cisco 7600 series by allowing remote troubleshooting and traffic analysis without

having to send personnel to remote sites or hauling large amounts of data to the central site. The NM-NAMs

can collect MIB-II statistics on each interface.