User guide

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Cisco Transport Manager Release 9.2 GateWay/CORBA User Guide and Programmer Manual
OL-20937-01
Chapter 2 NE- and CTM-Specific Details
2.1.3 ONS 15310 CL
2.1.3.3 Topological Links
All topological links are unidirectional or bidirectional for ONS 15310 CL NEs.
2.1.3.4 CTX Cards
The CTX card is an electrical card that consists of 21 digital signal level 1 (DS1) ports and three
DS3/EC1 ports. Two optical interfaces are supported using SFP technology. OC-3/STM-1 and
OC-12/STM-4 ports are available.
2.1.3.5 PTPs
All PTPs are bidirectional for the ONS 15310 CL. The ports are always in channelized mode. PTPs
support In Service and Out of Service–Maintenance values for the service state attribute.
2.1.3.6 CTPs
All CTPs are in channelized mode for the ONS 15310 CL.
2.1.3.7 SNCs
CTX cards perform synchronous transport signal (STS) and VT1.5 switching. The subnetwork
connection (SNC) name cannot exceed 48 characters. The NE enforces the SNC name character limit.
2.1.3.8 Autodiscovery
The ONS 15310 CL supports automatic discovery of connected elements. CTM can connect to one node
and retrieve information about all connected nodes. The first time CTM connects to a node, it retrieves
only the IP address of the connected node; CTM does not retrieve the node name. However, CTM must
report this element to the users. Because the IP address is unique, CTM initializes the name of the newly
discovered element with the IP address. An object creation event is generated for this managed element
with the IP address as the name. Later, CTM connects to this element and retrieves all information,
including the actual name, and an attribute value change (AVC) event is generated for the managed
element name. The NMS listens to the AVC event for the managed element name and invokes
managedElementManager::ManagedElementManager_I:: getManagedElement.
Disabled (DSBLD) The entity has been manually removed from service and cannot perform its provisioned
functions. All of its provisioned services are disrupted. Traffic is not carried.
Loopback (LPBK) The loopback command is in effect (any loopback type).
Table 2-3 Equipment Service State–Secondary (ONS 15310 CL) (continued)
Secondary States (SST)
Attribute Value Meaning