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Cisco ONS 15454 DWDM Reference Manual, R8.5
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Chapter 15 Management Network Connectivity
15.4.3 Network Using GCC/DCC
create an OTS-to-OTS PPC between the nodes. The OTS-to-OTS PPC creates a DCN connection
between the nodes. Refer to the “Create Circuits and Provisionable Patchcords” chapter in the Cisco
ONS 15454 DWDM Procedure Guide for instructions on how to provision an OTS-to-OTS PPC.
15.4.3 Network Using GCC/DCC
Figure 15-24 shows a point-to-point network network that uses GCC/DCC as the communication
channel.
Figure 15-24 Network Using GCC/DCC
In a network using GCC/DCC, one ONS 15454 node (for example, Node A) is provisioned as a gateway
network element (GNE). The NOC is connected only to the GNE. It is possible to supervise all the nodes
from the network operations center (NOC) and all nodes can communicate with each other using
GCC/DCC.
However in such a network, because of the absence of the embedded OSC channel, discovery of the
network topology is not automatic. You must manually provision the adjacency of nodes inorder to
configure the correct topology. Refer to the “Create Circuits and Provisionable Patchcords” chapter in
the Cisco ONS 15454 DWDM Procedure Guide for instructions on how to provision DCN extension for
a network using GCC/DCC.
15.5 Routing Table
ONS 15454 routing information is displayed on the Maintenance > Routing Table tab. The routing table
provides the following information:
• Destination—Displays the IP address of the destination network or host.
• Mask—Displays the subnet mask used to reach the destination host or network.
• Gateway—Displays the IP address of the gateway used to reach the destination network or host.
• Usage—Shows the number of times the listed route has been used.
• Interface—Shows the ONS 15454 interface used to access the destination. Values are:
–
motfcc0—The ONS 15454 Ethernet interface, that is, the RJ-45 jack on the TCC2/TCC2P and,
for ANSI shelves, the LAN 1 pins on the backplane or, for ETSI shelves, the LAN connection
on the MIC-C/T/P.
OTS to OTS PPC
GCC
Virtual connection
Node connection relies on GCC/DCC
DCN
CTC/Management
Node A Node B
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