Specifications

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Cisco ONS 15454 Installation and Operations Guide, R3.2
March 2002
Chapter 9 Ethernet Operation
G1000-4 Circuit Configurations
9.5.2 G1000-4 Manual Cross-Connects
ONS 15454s require end-to-end CTC visibility between nodes for normal provisioning of Ethernet
circuits. When other vendors’ equipment sits between ONS 15454s, OSI/TARP-based equipment does
not allow tunneling of the ONS 15454 TCP/IP-based DCC. To circumvent a lack of continuous DCC,
the Ethernet circuit must be manually cross connected to an STS channel riding through the non-ONS
network. This allows an Ethernet circuit to run from ONS node to ONS node while utilizing the non-ONS
network.
Note In this chapter, “cross-connect” and “circuit” have the following meanings: Cross-connect refers to
the connections that occur within a single ONS 15454 to allow a circuit to enter and exit an ONS
15454. Circuit refers to the series of connections from a traffic source (where traffic enters the ONS
15454 network) to the drop or destination (where traffic exits an ONS 15454 network).
Figure 9-27 G1000-4 manual cross-connects
Procedure: Provision a G1000-4 Manual Cross-Connect
Step 1 Display CTC for one of the ONS 15454 Ethernet circuit endpoint nodes.
Step 2 Click the Circuits tab and click Create.
Step 3 The Circuit Creation (Circuit Attributes) dialog box opens.
Step 4 In the Name field, type a name for the circuit.
Step 5 From the Type pull-down menu, choose STS.
The VT and VT Tunnel types do not apply to Ethernet circuits.
Step 6 Choose the size of the circuit from the Size pull-down menu.
The valid circuit sizes for a G1000-4 circuit are STS-1, STS-3c, STS-6c, STS-9c, STS-12c, STS-24c,
and STS-48c.
Step 7 Verify that the Bidirectional checkbox is checked and click Next.
The Circuit Creation (Circuit Source) dialog box opens (Figure 9-28).
47093
Non-ONS
Network
ONS NodeONS Node
SONET/SDH
Ethernet