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Cisco Network Management Software
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ATM Director This tool is used to discover ATM devices. It can pro-
vide information based on VPI/VCI pairs; it interfaces with switches
to provide ATM-VLAN information; and it provides statistical infor-
mation for PVCs, SVCs, and other ATM information.
UserTracking Because VLANs are simply logical associations, User-
Tracking is used to aid in moving user information from one VLAN to
another or to provide consistent VLAN assignment if the physical cable is
moved from one port to another on the switch.
Cisco provides a very thorough set of network management applications.
These programs were developed specifically for Cisco equipment. For exam-
ple, CWSI uses Cisco Discovery Protocol (CDP) to discover the network.
Only Cisco devices respond to CDP packets. Because these tools were devel-
oped for Cisco devices, the MIB objects that are needed to manage the
devices are preprogrammed into the software. With the CiscoWorks 2000
package, three of the five goals for NMS are fulfilled.
NetSys
NetSys is an off-line tool. It is a complex program that inputs and parses Cisco
device configurations, and then creates a model based on the configurations. The
program is used to model changes to a network before they are actually imple-
mented. The original configurations can be used to establish a baseline.
The engine used within NetSys can decipher the configurations and pinpoint
any problems that might occur with the implementation of the configuration.
NetSys creates topological maps, and then enables the user to make changes on
the map, thus affecting configurations. There is a connectivity tool that allows
the user to test connectivity between any two specified devices.
NetSys also has a performance tool. It can be configured to poll information
from the network, download it, and then analyze it. The information copied from
the network is used to show protocol distribution, link distribution, and applica-
tion utilization. Using this tool, the user can create models that enable the network
to scale and grow, according to the demands placed on it.
NetSys fulfills the role of an NMS because it allows changes to be modeled
off-line, tested, and then implemented into the production network. NetSys
is a very powerful tool, and has been called a "CCIE in a can."
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