Datasheet

Table Of Contents
13-48
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 13 Management Network Connectivity
13.7.9 OSI/IP Networking Scenarios
Figure 13-28 IP-over-CLNS Tunnel Scenario 3: ONS Node to Router Across an OSI DCN
13.7.9 OSI/IP Networking Scenarios
The following eight scenarios show examples of ONS 15454 SDH nodes in networks with OSI-based
NEs. The scenarios show ONS 15454 SDH nodes in a variety of roles. The scenarios assume the
following:
ONS 15454 SDH 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 15454 SDH 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 15454 SDH NE that has both IP and NSAP address.
DCC links between ONS 15454 SDH 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 15454 SDH 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