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Cisco ONS 15454 Reference Manual, R8.5.x
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Chapter 13 Management Network Connectivity
13.6.9 OSI/IP Networking Scenarios
Figure 13-30 IP-over-CLNS Tunnel Scenario 3: ONS Node to Router Across an OSI DCN
13.6.9 OSI/IP Networking Scenarios
The following eight scenarios show examples of ONS 15454s in networks with OSI-based NEs. The
scenarios show ONS 15454 nodes in a variety of roles. The scenarios assume the following:
ONS 15454 NEs are configured as dual OSI and IP nodes with both IP and NSAP add resses. They
run both OSPF and OSI (IS-IS or ES-IS) routing protocols as “Ships-In-The-Night,” with no route
redistribution.
ONS 15454 NEs run TARP, which allows them to resolve a TL1 TID to a NSAP address. A TID
might resolve to both an IP and an NSAP address when the de stination TID is an ONS 15454 NE
that has both IP and NSAP address.
DCC links between ONS 15454 NEs and OSI-only NEs run the full OSI st ack over LAP-D, which
includes IS-IS, ES-IS, and TARP.
DCC links between ONS 15454 NEs run the full OSI stack and IP (OSPF) over PPP.
134357
CTC 1
10.10.10.100/24
OSI
DCN
OSI
IP
Other vendor
GNE
Other vendor
NE
OSI
OSI-only
DCC (LAPD)
GRE or
Cisco IP tunnel
OSI
ONS NE 1
10.10.30.30/24
39.840F.80. 111111.0000.1111.1111.dddddddddddd.00
Router 2
Interface 0/0: 10.10.10.10/24
Interface 0/1: 10.10.20.10/24
39.840F.80.111111.0000.1111.1111.aaaaaaaaaaaa.00
Router 1
Interface 0/0: 10.10.20.20/24
Interface 0/1: 10.10.30.10/24
39.840F.80. 111111.0000.1111.1111.bbbbbbbbbbbb.00