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Chapter 8 Management Network Connectivity
TCP/IP and OSI Networking
Tunnel Type: GRE
IP-over-CLNS tunnel provisioning on the other vender GNE:
Destination: 10.20.30.30 (ONS NE 1)
Mask: 255.255.255.255 for host route (ONS NE 1 only), or 255.255.255.0 for subnet route (all ONS
nodes residing on the 10.30.30.0 subnet)
NSAP: 39.840F.80.1111.0000.1111.1111.dddddddddddd.00 (ONS NE 1)
Metric: 110
Tunnel Type: GRE
Figure 8-19 IP Over CLNS Tunnel Scenario 1: ONS NE to Other Vender GNE
8.6.7.3 IP-Over-CLNS Tunnel Scenario 2: ONS Node to Router
Figure 8-20 shows an IP-over-CLNS tunnel from an ONS node to a router. The other vendor NE has an
OSI connection to a router on an IP DCN, to which a CTC computer is attached. An OSI-only (LAP-D)
RS-DCC 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.
134355
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
ONS NE 1
10.10.30.30/24
39.840F.80. 111111.0000.1111.1111.dddddddddddd.00
Other vendor
NE
OSI
OSI-only
DCC (LAPD)
GRE tunnel
OSI
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