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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter12 CTC Network Connectivity
12.3 Provisionable Patchcords
Figure 12-17 shows an example of ONS 15454 nodes connected to a router with secure mode en abled.
In the example, TCC2P port addresses are on a different subnet from the node MIC-C/T/P IP addresse s.
Figure12-17 Scenario 9: ONS 15454 SDH GNE and ENEs on Different Subnets with Secure Mode
Enabled
12.3 Provisionable Patchcords
A provisionable patchcord is a user-provisioned link that is advertised by OSPF throughout the network.
Provisionable patchcords, also called virtual links, are needed in the following situations:
•An optical port is connected to a transponder or muxponder client port provisioned in transparent
mode.
•An optical ITU port is connected to a DWDM optical channel card.
•Two transponder or muxponder trunk ports are connected to a DWDM optical channel card and the
generic control channel (GCC) is carried transparently through the ring.
•Transponder or muxponder client and trunk ports are in a regenera tor group, the cards are in
transparent mode, and DCC/GCC termination is not available.
Remote CTC
10.10.20.10
10.10.20.0/24
10.10.10.0/24
Interface 0/0
10.10.20.1
Router A
Interface 0/1
10.10.10.1
ONS 15454 SDH
Gateway NE
MIC-C/T/P - 10.10.10.100/24
TCC2P - 176.20.20.40/24
ONS 15454 SDH
External NE
MIC-C/T/P - 192.168.10.250/24
TCC2P - 176.20.20.30/24
ONS 15454 SDH
External NE
192.168.10.150/24 - MIC-C/T/P
176.20.20.10/24 - TCC2P
ONS 15454 SDH
External NE
192.168.10.200/24 - MIC-C/T/P
176.20.20.20/24 - TCC2P
Local/Craft CTC
192.168.20.20
Ethernet
SDH
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