Cisco Systems 15454-FTF2 13.6.9.4 OSI/IP Scenario 4: Multiple ONS DCC Areas

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Cisco ONS 15454 Reference Manual, R8.5.x
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Chapter 13 Management Network Conn ectivity
13.6.9 OSI/IP Networking Scenarios
Figure 13-34 OSI/IP Scenario 3 with OSI/IP-over-CLNS Tunnel Endpoint at the GNE
13.6.9.4 OSI/IP Scenario 4: Multiple ONS DCC Areas
OSI/IP Scenario 4 (Figure 13-35) is similar to OSI/IP Scenario 3 except that the OSI GNE is subtende d
by multiple isolated ONS 15454 areas. A separate IP-over-CLNS tunnel is required to each isolated
ONS 15454 OSPF area. An alternate approach is to create a single IP-over-CLNS tunnel from CTC/CTM
to an ONS 15454 NE, and then to configure a tunnel from that NE to an NE in each isolated OSPF area.
This approach requires additional static routes.
1The IP OSS manages ONS and other vendor NEs using TL1 and FTP.
2The router routes requests to the other vender GNE.
3The other vendor GNE performs mediation for TL1 and FTP, so the DCCs to ONS 15454 and
other vendor NEs are OSI-only.
4CTC/CTM communicates with ONS 15454 NEs over an IP-over-CLNS tunnel between the
ONS 15454 and the GNE.
5ONS 15454 NEs exchange TL1 over the full OSI stack. FTAM is used for file transfer.
131931
IP DCN
IP
IP
CTC/CTM IP OSS
IP
Other
vendor GNE
ONS NE 1
ONS NE 2
Other
vendor NE
Other
vendor NE
IP and
OSI/PPP/DCC
OSI/LAP-D/DCC
OSI/LAP-D/DCC
OSI/LAPD/DCC
1
3
5
4
2