Datasheet

Network Analysis Module (NM-NAM)
analysis-module monitoring
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Cisco IOS Release: Multiple releases (see the Feature History Table)
analysis-module monitoring
To enable Network Analysis Module (NAM) packet monitoring on an interface, use the
analysis-module monitoring command in interface configuration mode. To disable NAM packet
monitoring, use the no form of this command.
analysis-module monitoring
no analysis-module monitoring
Syntax Description This command has no arguments or keywords.
Defaults NAM packet monitoring is disabled.
Command Modes Interface configuration
Command History
Usage Guidelines When you enable NAM packet monitoring on an interface, Cisco Express Forwarding (CEF) sends an
extra copy of each IP packet that is received or sent on that interface to the NAM through the analysis
module interface on the router and then through the internal NM-NAM interface.
Note Traffic sent through the internal NAM interface—and the router’s analysis module interface—uses
router resources such as CPU, SDRAM bandwidth, and backplane Peripheral Component
Interconnect (PCI) bandwidth. Therefore, Cisco recommends that you use the internal NAM interface
to monitor WAN interfaces and that you use the external NAM interface to monitor LAN interfaces.
Examples The following example shows how to enable NAM packet monitoring on a serial interface:
Router(config)# interface serial 0/0
Router(config-if)# analysis-module monitoring
Release Modification
12.3(4)XD This command was introduced on the following platforms: Cisco 2600XM
series, Cisco 2691, Cisco 3660, Cisco 3725, and Cisco 3745.
12.3(7)T This command was integrated into Cisco IOS Release 12.3(7)T.
12.3(8)T4 This command was implemented on the following platforms: Cisco 2811,
Cisco 2821, Cisco 2851, and Cisco 3800 series.
12.3(11)T This command was implemented on the Cisco 3800 series.