15-14
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 15 Management Network Connectivity
15.2.7 Scenario 7: Provisioning the ONS 15454 Proxy Server
Figure 15-10 shows an ONS 15454 proxy server implementation. A GNE ONS 15454 is connected to a
central office LAN and to ENE ONS 15454s. The central office LAN is connected to a NOC LAN, which
has CTC computers. The NOC CTC computer and craft technicians must both be able to access the
ONS 15454 ENEs. However, the craft technicians must be prevented from accessing or seeing the NOC
or central office LANs.
In the example, the ONS 15454 GNE is assigned an IP address within the central office LAN and is
physically connected to the LAN through its LAN port. ONS 15454 ENEs are assigned IP addresses that
are outside the central office LAN and given private network IP addresses. If the ONS 15454 ENEs are
collocated, the craft LAN ports could be connected to a hub. However, the hub should have no other
network connections.
Figure 15-10 Scenario 7: ONS 15454 Proxy Server with GNE and ENEs on the Same Subnet (ANSI
and ETSI)
Table 15-2 shows recommended settings for ONS 15454 GNEs and ENEs in the configuration shown in
Figure 15-10.
Remote CTC
10.10.20.10
10.10.20.0/24
10.10.10.0/24
Interface 0/0
10.10.20.1
Router A
Interface 0/1
10.10.10.1
ONS 15454
Gateway NE
10.10.10.100/24
ONS 15454
End NE
10.10.10.250/24
ONS 15454
End NE
10.10.10.150/24
ONS 15454
End NE
10.10.10.200/24
124253
Local/Craft CTC
192.168.20.20
Ethernet
Optical Fiber
Table 15-2 ONS 15454 Gateway and End NE Settings
Setting ONS 15454 Gateway NE ONS 15454 End NE
OSPF Off Off
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