Specifications

© 2006 Cisco Systems, Inc.
All rights reserved.
Introduction 1-22
NAM / Traffic Analyzer v3.5 Tutorial
© 2006 Cisco Systems, Inc. All rights reserved.
Introduction 1-22
NAM / Traffic Analyzer v3.5 Tutorial
Network Analysis Modules
Cisco Branch Routers Series NM-NAM
Network Analysis Modules
Cisco Branch Routers Series NM-NAM
Cisco ISR
2600XM, 2800,
3660, 3700, and 3800
Series Routers
Web Server
Web Server
Embedded
Traffic Analyzer
Software
Embedded
Traffic Analyzer
Software
RMON II
RMON II
HC-MON
HC-MON
DS-MON
DS-MON
ART
ART
Voice / Video
Voice / Video
Real Time/
Historical
Reports
Real Time/
Historical
Reports
Capture/Decode
Packets
HTTP/S
NBAR
NBAR
MIB-II statistics are
available for each
router interface
MIB-II statistics are
available for each
router interface
Voice & Video
Reports
Voice & Video
Reports
Cisco Branch Routers Series NM-NAM
Cisco Branch Routers Series NAM, referred to herein as the NM-NAM, internally, is very similar to the
Cat6500 NAMs. The NM-NAM is available for Cisco 2600XM, 2800, 3660, 3700, and 3800 series access
routers to gain application-level visibility into traffic at remote sites. Just like the Cat6500 NAM, the NM-NAM
provides detailed analysis of applications, hosts, conversations, and network-based services such as quality
of service (QoS) and voice over IP (VoIP). The NM-NAM also includes the embedded, web-based Traffic
Analyzer software, which provides full-scale remote monitoring and troubleshooting accessible through a
web browser.
The NM-NAM is slightly different from the Cat6500 NAM in the following ways:
• The SPAN or copy network traffic for analysis is a feature of Catalyst switches and not of branch
routers. Instead of receiving SPAN, the NM-NAM receives duplicates of packets either directly from
the router backplane in a passive or promiscuous mode using a special packet-monitoring feature in
Cisco IOS® Software, or through an external Fast Ethernet interface.
• The capability of monitoring VLANs is a layer 2 feature and is not supported in the routers.
• Catalyst 6500 / Cisco 7600 series devices support interface monitoring using mini-RMON. The
branch routers can provide similar interface monitoring by the NM-NAM using the MIB-II statistics
available on each router interface.
Let’s now look at the Traffic Analyzer software embedded in both the Cat6500 NAMs and the NM-NAM.