Osi/Ip Networking Scenarios; Figure 9-28 Ip Over Clns Tunnel Scenario 3: Ons Node To Router Across An Osi Dcn - Cisco ONS 15600 Reference Manual
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9.7.9 OSI/IP Networking Scenarios
Figure 9-28
IP Over CLNS Tunnel Scenario 3: ONS Node to Router Across an OSI DCN
OSI
DCN
GRE or
Cisco IP tunnel
ONS NE 1
10.10.30.30/24
39.840F.80. 111111.0000.1111.1111.dddddddddddd.00
9.7.9 OSI/IP Networking Scenarios
The following eight scenarios show examples of ONS 15600s in networks with OSI-based NEs. The
scenarios show ONS 15600s in a variety of roles. The scenarios assume the following:
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•
•
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Cisco ONS 15600 Reference Manual, R6.0
9-44
CTC 1
10.10.10.100/24
IP
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
OSI
Other vendor
GNE
OSI
OSI
OSI-only
DCC (LAPD)
ONS 15600 NEs are configured as dual OSI and IP nodes with both IP and NSAP addresses. They
run both OSPF and OSI (IS-IS or ES-IS) routing protocols as "Ships-In-The-Night," with no route
redistribution.
ONS 15600 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 destination TID is an ONS 15600 NE
that has both IP and NSAP address.
DCC links between ONS 15600 NEs and OSI-only NEs run the full OSI stack over LAP-D, which
includes IS-IS, ES-IS, and TARP.
DCC links between ONS 15600 NEs run the full OSI stack and IP (OSPF) over PPP.
Other vendor
NE
Chapter 9
Management Network Connectivity
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