Cisco Systems Dial NMS User Manual
Network Design for a Dial NMS Case Study
Configuration Design Parameters
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Basic Dial NMS Implementation Guide
Configuration Design Parameters
Before THEnet can implement and operate the dial NMS, several design parameters must be defined by
the network engineers and operators.
the network engineers and operators.
Each dial POP requires enough IP address space for the POP to grow to its maximum size. For THEnet,
each POP must support up to 50,000 lines. Therefore, an entire class B network is initially assigned to
each POP.
each POP must support up to 50,000 lines. Therefore, an entire class B network is initially assigned to
each POP.
Figure 7
IP Subnetting Diagram for the THEnet
To simplify IP address management, each POP uses a similar IP subnetting plan.
CiscoSecure Unix, version 2.3(3)
Authenticates, authorizes, and accounts for dial access
clients in each POP by using RADIUS.
clients in each POP by using RADIUS.
Authenticates, authorizes, and accounts for router
administrators in the NOC by using TACACS+.
administrators in the NOC by using TACACS+.
Uses AAA accounting records to collect performance
data, fault data, and track router configuration changes.
data, fault data, and track router configuration changes.
War Dialer
Runs performance tests by using a dial simulator and
client PCs.
client PCs.
Table 6
Dial NMS Software and Management System Requirements (continued)
Software and Management Systems
Purpose
35229
POP #1
172.21.0.0/16
POP #2
172.22.0.0/16
Device ID
IP pool
Device ID
IP pool
PSTN
Modems
Clients
Internet
Firewall
NOC
Firewall
Access
Access
Intranet
WAN