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Cisco ONS 15600 Reference Manual, R7.2
Chapter 9 Management Network Connectivity
9.7.8 IP-over-CLNS Tunnels
9.7.8.4 IP-Over-CLNS Tunnel Scenario 3: ONS Node to Router Across an OSI DCN
Figure 9-28 shows an IP-over-CLNS tunnel from an ONS node to a router across an OSI DCN. The other
vendor NE has an OSI connection to an IP DCN to which a CTC computer is attached. An OSI-only
(LAP-D) SDCC is created between the ONS NE 1 and the other vender GNE. The OSI over IP tunnel
can be either the Cisco IP tunnel or a GRE tunnel, depending on the tunnel types supported by the router.
IP-over-CLNS tunnel on ONS NE 1:
•
Destination: Router 2 IP address
•
Mask: 255.255.255.255 for host route (CTC 1 only), or 255.255.255.0 for subnet route (all CTC
computers on the same subnet)
•
NSAP: Other vender GNE NSAP address
•
Metric: 110
•
Tunnel Type: Cisco IP
IP over OSI tunnel on Router 2 (sample Cisco IOS provisioning):
ip routing
clns routing
interface ctunnel 102
ip address 10.10.30.30 255.255.255.0
ctunnel destination 39.840F.80.1111.0000.1111.1111.dddddddddddd.00
interface Ethernet0/1
clns router isis
router isis
net 39.840F.80.1111.0000.1111.1111.aaaaaaaaaaaa.00