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Cisco Transport Manager Release 6.0 User Guide
78-16845-01
Chapter 3 Building the Network
3.5.1 Prerequisites for Adding NEs
• Create a username and password with appropriate privileges.
• After configuring the NE, add a seed NE to CTM. CTM automatically discovers the interconnected
CRS-1 or XR 12000 NEs.
Note The CRS-1 and XR 12000 discovery does not put the NE in service automatically. The
discovery process adds the discovered NEs to CTM; however, you must mark the NEs as In
Service.
• Enable CDP on the NE for network discovery.
• If you are not using the username and password specified in the Control Panel > Security
Properties > CRS-1 or XR 12000 tab, configure the username and password in the Domain
Explorer > Network Element Properties > NE Authentication tab.
Note All CRS-1 and XR 12000 NEs must be added in Domain Name System (DNS) or in the hosts file;
otherwise, CTM cannot connect to the NEs. CTM uses DNS to look up the name of the NE and then
connects to the NE through its name.
3.5.1.7 Prerequisites for Adding Cisco Catalyst 6509 NEs
Before adding a Cisco Catalyst 6509, configure the NE with a valid community string. Then, add the NE
to CTM. Network discovery is not supported for the Cisco Catalyst 6509. The Catalyst 6509 is supported
only in terms of managing the Cisco CRS-1.
3.5.1.8 Prerequisites for Adding Cisco MGX Voice Gateway Devices
Before adding a Cisco MGX NE, you must enable the NE service. You must also meet certain other
specific prerequisites depending on the type of Cisco MGX NE you are adding. The following aspects
must be configured before adding Cisco MGX NEs:
• Hostnames and IP addresses
• SNMP community strings
• Topology setup
• Performance monitoring (optional)
3.5.1.8.1 How Do I Configure the SNMP Community String?
CTM configures the community strings for SNMP management and supports various multiservice
switching devices.
Caution The community strings on the devices and the community strings used by CTM do not sync up
automatically (except at the initial stage when the community strings on the devices are at default).You
have to explicitly change them on both sides (using the Network Element Property pane in the Domain
Explorer on CTM and the command line interface (CLI) on the switch). See 3.5.1.8.3 Changing
Community Strings Using the Domain Explorer and 3.5.1.8.4 Changing Community Strings Using the
CLI. If this is not done, all SNMP requests fail, and the CTM database is inconsistent with the network.