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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter12 CTC Network Connectivity
12.2.7 Scenario 7: Provisioning the ONS 15454 SDH Proxy Server
Figure12-10 Proxy Server Gateway Settings
Figure 12-11 shows an ONS 15454 SDH proxy server implementation. A GNE ONS 15454 SDH is
connected to a central office LAN and to ENE ONS 15454 SDH nodes. The central office LAN is
connected to a NOC LAN, which has CTC computers. The NOC CTC computer and craft technicians
must be able to access the ONS 15454 SDH ENEs. However, the craft technicians must be prevented
from accessing or seeing the NOC or central office LANs.
In the example, the ONS 15454 SDH GNE is assigned an IP address within the central office LAN and
is physically connected to the LAN through its LAN po rt. ONS 15454 SDH ENEs are assigned IP
addresses that are outside the central office LAN and given private network IP addresses. If the
ONS 15454 SDH ENEs are collocated, the craft LAN ports could be connected to a hub. However, the
hub should have no other network connections.