980-001-0210K
NetPath 100 User’s Manual - Installation Guide
2-1
November 2000
2 Description
The NetPath 100 Frame Relay Channel Service Unit (FSU) is a special purpose
T1/FT1 CSU/DSU which provides management and diagnostic functions through
Simple Network Management Protocol (SNMP), transported over a Frame Relay
network. It also includes an integral modem which supports access to the CSU/DSU
as well as other co-located equipment such as routers. The NetPath 100 can be factory
optioned to include an ISDN Adapter (4 BRIs, for Backup and/or Bandwidth On-
Demand). Network Service Providers (NSPs) who prefer to have independent
management access from their end-user networks (customer networks), can utilize the
isolated management PVC designed into the NetPath 100 for network demarcation and
diagnostics.
System Level
Figure 2-1 shows a system level view of the NetPath 100 FSU, including management
transport. As shown in the figure, the Frame Relay network provides Permanent
Virtual Circuits (PVCs) for both the Customer Data and FSU management.
NOTE: NetPath 100 is transparent to SVCs (Switched Virtual Circuits).
The NetPath 100 can have up to two IP Addresses for management. One IP Address
allows it to communicate with SNMP work stations that have access to the NSP
management PVC. A second IP Address can provide management access via a
customer data PVC.
NetPath 100 can also send SNMP Traps to multiple SNMP Alarm Servers via the man-
agement PVCs. The integral modem is used to dial into the Network Control Center
(NCC) Terminal Server to access the SNMP Alarm Server and report faults that are
prevented from being reported over the PVC management channels. It can also accept
maintenance calls from NCC Work Stations to support operator interaction, and accept
inbound calls from a customer or NCC Work Station to manage co-located devices
such as routers.
Figure 2-1 NetPath 100 Typical Network Application
SN M P Alarm
Server
NCC
LAN
NCC Telnet
W ork S tation
P O P
C ustom er D ata
C enter
N etw ork Control C enter
IP O ver
Fram e
Custom er &
M gm t P VCs
Custom er
LAN
Fram e Relay
Backbone
Cust.
PV Cs
M gm t
PV C
Term inal Server
Fram e Sw itch
Dial Line
Console Port
Serial P ort
(C ust. P VC)
Router
HW3DWK
E nd U ser Prem ise
Router
