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Chapter 9
Management Network Connectivity
Figure 9-32
ONS NE 1
OSI/PPP/DCC
ONS NE 2
1
2
3
4
5
9.7.9.4 OSI/IP Scenario 4: Multiple ONS DCC Areas
OSI/IP Scenario 4
by multiple isolated ONS 15600 areas. A separate IP-over-CLNS tunnel is required to each isolated
ONS 15600 OSPF area. An alternate approach is to create a single IP-over-CLNS tunnel from
CTC/CTM to an ONS 15600 NE, and then to configure a tunnel from that NE to an NE in each isolated
OSPF area. This approach requires additional static routes.
OSI/IP Scenario 3 with OSI/IP-over-CLNS Tunnel Endpoint at the GNE
CTC/CTM
IP
IP DCN
Other
vendor GNE
4
OSI/LAPD/DCC
5
IP and
The IP OSS manages ONS and other vendor NEs using TL1 and FTP.
The router routes requests to the other vender GNE.
The other vendor GNE performs mediation for TL1 and FTP, so the DCCs to ONS 15600 and
other vendor NEs are OSI-only.
CTC/CTM communicates with ONS 15600 NEs over an IP-over-CLNS tunnel between the
ONS 15600 and the GNE.
ONS 15600 NEs exchange TL1 over the full OSI stack. FTAM is used for file transfer.
(Figure
9-33) is similar to OSI/IP Scenario 3 except that the OSI GNE is subtended
1
IP OSS
IP
2
IP
3
OSI/LAP-D/DCC
Other
vendor NE
OSI/LAP-D/DCC
Other
vendor NE
Cisco ONS 15600 Reference Manual, R7.0
9.7.9 OSI/IP Networking Scenarios
9-49
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