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Chapter 9
Management Network Connectivity
Figure 9-26
GRE tunnel
ONS NE 1
10.10.30.30/24
39.840F.80. 111111.0000.1111.1111.dddddddddddd.00
9.7.8.3 IP-Over-CLNS Tunnel Scenario 2: ONS Node to Router
Figure 9-27
OSI connection to a router on 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:
•
•
•
•
•
IP Over CLNS Tunnel Scenario 1: ONS NE to Other Vender GNE
CTC 1
10.10.10.100/24
IP
DCN
IP/OSI
Vendor GNE
10.10.30.20/24
39.840F.80. 111111.0000.1111.1111.cccccccccccc.00
OSI
OSI-only
DCC (LAPD)
shows an IP-over-CLNS tunnel from an ONS node to a router. The other vendor NE has an
Destination: 10.10.30.10 (Router 1, Interface 0/1)
Mask: 255.255.255.255 for host route (Router 1 only), or 255.255.255.0 for subnet route (all routers
on the same subnet)
NSAP: 39.840F.80.1111.0000.1111.1111.bbbbbbbbbbbb.00 (Router 1)
Metric: 110
Tunnel Type: Cisco 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
NE
Cisco ONS 15600 Reference Manual, R7.0
9.7.8 IP-over-CLNS Tunnels
9-41
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