Specifications

© 2006 Cisco Systems, Inc.
All rights reserved.
Product Features 2-18
NAM / Traffic Analyzer v3.5 Tutorial
© 2006 Cisco Systems, Inc. All rights reserved.
Product Features 2-18
NAM / Traffic Analyzer v3.5 Tutorial
Cisco Branch Routers Series NM-NAM
Features
Cisco Branch Routers Series NM-NAM
Features
• Multiple Sources for Analysis
– Internal Interface receives interface data streams via CEF
– External Interface can be connected to FE LAN segment
– NetFlow
• Full RMON 2 Capability
– Hosts statistics –Network Layer
– Conversation statistics –Network Layer
– Upper layer protocol distribution
• Extended RMON
– ART(Application Response Time)
– DS-MON (Differentiated Services)
– Voice over IP
• MIB II support for hosting router interfaces
• NBAR-PD MIB
NM-NAM Features
The Cisco® Branch Routers Series NAM, an integrated traffic-monitoring module for the Cisco 2600XM
Modular Multi-Service Module, Cisco 2800 integrated services routers, Cisco 3660 Multi-Service Platform,
Cisco 3700 Series Multi-Service Access Routers, Cisco 3800 Series integrated services routers, and the
Cisco 2691 Multi-Service Platform routers, enables network managers to gain application-level visibility into
network traffic.
The NM-NAM has two interfaces used for analyzing traffic. Router interface traffic can be forwarded to the
Internal NM-NAM interface using Cisco Express Forwarding enabled from the router’s CLI. The External
interface can be connected to a Ethernet segment for analysis. Further, depending which port is designated
as the management interface (receives NAM access traffic), that port can receive NetFlow traffic and analyze
it as a separate data stream.
Note: The Traffic Analyzer does not have a mechanism for viewing the CEF configuration of each router
interface. The user must have a prior information about the CEF configuration to properly understand the
NAM analysis.
Included with the NAMs is an embedded, Web-based Traffic Analyzer, which provides full-scale remote
monitoring and troubleshooting accessible through a Web browser. Analysis is done through the use of many
different MIBs including RMON, ART (Application Response Time), DS-MON (Differentiated Services), and
VoIP (Voice over IP).
The NM-NAM can also provide layer 2 statistics for each router interface by polling the router’s MIB-II. Layer
3 statistics (apps, hosts, and conv) are also available for each interface by effectively creating a NetFlow for
each enabled interface and forwarding it to the NAM. This processes is handled through the GUI via a simple
enabling of the feature for desired interfaces. Alternatively, if NBAR is enabled, the NAM can use the NBAR-
PD MIB to display application traffic seen on each interface of the router. This differs from the internal
interface which presents an aggregate of this type of data for all interfaces forwarding packets.
Using the integrated NAM solution, Network Managers gain valuable insight into their networks with both
real-time and historical application usage for performance monitoring and trending, fault isolation, and
troubleshooting purposes.