Tcp/Ip And Osi Networking; Figure 9-19 Foreign Node Connection To An Ene Ethernet Port - Cisco ONS 15600 Reference Manual

Chapter 9 Management Network Connectivity
Figure 9-19
useful in this example because the GNE would otherwise block IP access between the PC and foreign
node. This configuration also requires a firewall tunnel on the ENE.
Figure 9-19
ONS 15600 SDH
10.10.10.100/24
ONS 15600 SDH
10.10.10.250/24
130.94.122.199/28

9.6 TCP/IP and OSI Networking

ONS 15600 SDH DCN communication is based on the TCP/IP protocol suite. However,
ONS 15600 SDHs can also be networked with equipment that uses the OSI protocol suite. While TCP/IP
and OSI protocols are not directly compatible, they do have the same objectives and occupy similar
layers of the OSI reference model.
involved when TCP/IP-based NEs are networked with OSI-based NEs.
78-18400-01
shows a remote node connected to an ENE Ethernet port. Proxy and firewall tunnels are
Foreign Node Connection to an ENE Ethernet Port
GNE
ENE
Non-ONS node
Foreign NE
Remote CTC
10.10.20.10
10.10.20.0/24
Interface 0/0
10.10.20.1
Router A
Interface 0/1
10.10.10.1
10.10.10.0/24
ONS 15600 SDH
E NE
10.10.10.150/24
ONS 15600 SDH
ENE
10.10.10.200/24
Local/Craft CTC
192.168.20.20
Table 9-7 shows the protocols and mediation processes that are
Cisco ONS 15600 SDH Reference Manual, Release 9.0
9.6 TCP/IP and OSI Networking
Ethernet
SDH
9-25