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Cisco ONS 15600 Reference Manual, R7.2
Chapter 9 Management Network Connectivity
9.7.9 OSI/IP Networking Scenarios
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All ONS 15600 NEs participating in an OSI network run OSI over PPP between themselves. This is
needed so that other vendor GNEs can route TL1 commands to all ONS 15600 NEs participating in
the OSI network.
9.7.9.1 OSI/IP Scenario 1: IP OSS, IP DCN, ONS GNE, IP DCC, and ONS ENE
Figure 9-29 shows OSI/IP Scenario 1, the current ONS 15600 IP-based implementation, with an IP
DCN, IP-over-PPP DCC, and OSPF routing.
Figure 9-29 OSI/IP Scenario 1: IP OSS, IP DCN, ONS GNE, IP DCC, and ONS ENE
9.7.9.2 OSI/IP Scenario 2: IP OSS, IP DCN, ONS GNE, OSI DCC, and Other Vendor ENE
OSI/IP Scenario 2 (Figure 9-30) shows an ONS 15600 GNE in a multivendor OSI network. Both the
ONS 15600 GNE and the other vendor NEs are managed by an IP OSS using TL1 and FTP. The
ONS 15600 is also managed by CTC and Cisco Transport Manager (CTM). Because the other vendor
NE only supports TL1 and FTAM over the full OSI stack, the ONS 15600 GNE provides T–TD and
FT–TD mediation to convert TL1/IP to TL1/OSI and FTAM/OSI to FTP/IP.
1 IP OSS manages ONS 15600 using TL1 and FTP.
2 DCCs carry IP over the PPP protocol.
3 The ONS 15600 network is managed by IP over OSPF.
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IP DCN
IP
IP
CTC/CTM IP OSS
IP
IP/PPP/DCC
ONS GNE
ONS ENE
ONS NE
ONS NE
ONS NE
IP/OSPF
IP/PPP/DCC
IP/PPP/DCC IP/PPP/DCC
1
2
3