Cisco ONS 15600 Reference Manual page 221

Chapter 9 Management Network Connectivity
Figure 9-30
IP and OSI/PPP/DCC
ONS NE
OSI/PPP/DCC
ONS NE
1
2
3
4
5
The ONS 15600 SDH GNE routes TL1 traffic to the correct NE by resolving the TL1 TID to either an
IP or NSAP address. For TL1 traffic to other vendor NEs (OSI-only nodes), the TID is resolved to an
NSAP address. The ONS 15600 SDH GNE passes the TL1 to the mediation function, which
encapsulates it over the full OSI stack and routes it to the destination using the IS-IS protocol.
For TL1 traffic to ONS 15600 SDH NEs, the TID is resolved to both an IP and an NSAP address. The
ONS 15600 SDH GNE follows the current TL1 processing model and forwards the request to the
destination NE using the TCP/IP stack and OSPF routing.
78-18400-01
OSI/IP Scenario 2: IP OSS, IP DCN, ONS GNE, OSI DCC, and Other Vendor ENE
CTC/CTM
IP
IP DCN
ONS GNE
3
IP/OSPF
OSI/IS-IS
5
IP and
The IP OSS manages ONS 15600 SDH and other vendor NEs using TL1 and FTP.
The ONS 15600 SDH GNE performs mediation for other vendor NEs.
DCCs between the ONS 15600 SDH GNE and ONS 15600 SDH NEs are provisioned for IP
and OSI over PPP.
DCCs between the ONS 15600 SDH GNE and other vendor NEs are provisioned for OSI over
LAP-D.
The ONS 15600 SDH and the other vendor NE network include IP over OSPF and OSI over the
IS-IS protocol.
1
IP OSS
IP
IP
2
4
OSI/LAP-D/DCC
Other
vendor NE
OSI/LAP-D/DCC
Other
vendor NE
Cisco ONS 15600 SDH Reference Manual, Release 9.0
9.6.9 OSI/IP Networking Scenarios
9-45