Manuals / Cisco Systems / Computer Equipment / Network Router

Cisco Systems 78-16845-01 manual Discovering NEs, 3-55, SSM Generation 1 Message Set

Models: 78-16845-01

1 68

Download 68 pages 52.71 Kb

Page 55

3.9.1 Discovering NEs

Chapter 3 Building the Network

3.9.1 Discovering NEs

3.9.1 Discovering NEs

The network discovery service in CTM collects information from individual NEs, discovers new NEs added to the network, and computes network-level information, such as physical topology and discrepancies.

When you add a new NE to CTM, the discovery process starts. When the process finishes, all of the NE information (such as inventory, configuration, physical topology, and discrepancies) is collected and CTM is updated.

3.10How Do I Synchronize the Network for Optical and Routing Devices?

Use the NE Explorer to synchronize the CTC-based NEs in your network. The following sections describe the synchronization settings in detail.

3.10.1Synchronization Settings for the ONS 15310, ONS 15327, ONS 15454 SONET, and ONS 15600 SONET

Full Cisco IOS configuration synchronization is performed automatically by CTM to keep the NE and the CTM Data Provisioning Service synchronized. Full configuration resynchronization might be delayed depending on the usage of the CTM server.

For more information, see Chapter 7, “Provisioning Services and Connections.”

Synchronization status messaging (SSM) is a SONET protocol that communicates information about the quality of the timing source. SSM messages are carried on the S1 byte of the SONET Line layer. These messages enable SONET devices to automatically select the highest quality timing reference and to avoid timing loops.

SSM messages are either Generation 1 or Generation 2. Generation 1 is the first and most widely deployed SSM message set. Generation 2 is a newer version. If SSM is enabled, consult the timing reference documentation to determine which message set to use. Table 3-18and Table 3-19show the Generation 1 and Generation 2 message sets.


		Table 3-18	SSM Generation 1 Message Set

		Message	Quality		Description

		PRS	1		Primary reference source—Stratum 1

		STU	2		Synchronization traceability unknown

		ST2	3		Stratum 2

		ST3	4		Stratum 3

		SMC	5		SONET minimum clock

		ST4	6		Stratum 4

		DUS	7		Do not use for timing synchronization

		RES	—		Reserved; quality level set by user

					Cisco Transport Manager Release 6.0 User Guide
					Cisco Transport Manager Release 6.0 User Guide
	78-16845-01							3-55
	78-16845-01							3-55

Image 55

Cisco Systems 78-16845-01 manual Discovering NEs, 3-55, SSM Generation 1 Message Set

Contents

3.3 How Do I Build Network Partitions?, page 3.1 OverviewC H A P T E R 3.1 Overview, page 3.2 How Do I Build Groups?, page3.2.1 Adding Groups 3.2 How Do I Build Groups?3.2.2 Copying Groups 3.2.4 Deleting Groups 3.2.3 Moving Groups3.2.4.1 Deleting a Single Group 3.5.6 Automatically Grouping NEs in Subnetworks, page 3.3 How Do I Build Network Partitions?3.3.1 Adding Network Partitions 3.2.4.2 Deleting Multiple GroupsField Descriptions for the Network Partition Properties Pane 3.3.2 Modifying Network Partitions3.3.3 Deleting Network Partitions Field Descriptions for the Add New Network Partition Dialog Box3.4.1 Adding Subnetworks 3.4 How Do I Build Subnetworks?Step 3 Choose Edit Delete 3.5 How Do I Build NEs?3.4.2 Moving Subnetworks 3.4.3 Deleting Subnetworks3.5.1.1 Prerequisites for Adding ONS 15216 EDFA2 or EDFA3 NEs 3.5.1 Prerequisites for Adding NEs3.5.1.2 Prerequisites for Adding ONS 15302 and ONS 15305 NEs GNE trap port GNE community string public GNE version 3.5.1.4.2 SNMP Community Strings Required 3.5.1.4.1 Hostnames and IP Addresses Required3-10 3-11 an Efficient Network.”To add entries to the SNMP Community String table 3.5.1.4.4 Patch Setup 3.5.1.4.3 Topology Setup3-12 3.5.1.4.6 Performance Monitoring Optional 3.5.1.5 Prerequisites for Adding ONS 1580x NEs3.5.1.6 Prerequisites for Adding Cisco CRS-1 and XR 12000 NEs 3.5.1.4.5 Unbundled CiscoView Optional3-14 3.5.1.8.1 How Do I Configure the SNMP Community String?3.5.1.7 Prerequisites for Adding Cisco Catalyst 6509 NEs 3.5.1.8 Prerequisites for Adding Cisco MGX Voice Gateway Devices3-15 3.5.1.8.2 Setting Up Nonstandard Community Strings3.5.1.8.3 Changing Community Strings Using the Domain Explorer 3.5.1.8.4 Changing Community Strings Using the CLI3-16 3.5.1.8.5 Changing the Service-Level Passwords Using the CLI3.5.2.1 Adding a Single NE 3.5.2 Adding NEs3-17 Step 3-18a. NE ID- Read-only 3.5.2.2 Adding Multiple NEs3-19 Table 3-7 Field Descriptions for the Add New NE Wizard 3-20NE Addition Panel Field Descriptions for the Add New NE Wizard continued 3-21NE Properties Panel automatic subnetwork grouping is enabledpassword on the ONS 15216 EDFA2, ONS 15216 EDFA3, ONS 15216 OADM, ONS not selectable if3.5.4 Moving an NE from One Group to Another 3.5.3 Copying an NE from One Group to Another3-23 3.5.6 Automatically Grouping NEs in Subnetworks 3.5.5 Moving an NE from One Network Partition to Another3-24 3.5.7.1 Deleting a Single NE 3.5.7 Deleting NEs3-25 3-26 3.5.7.2 Deleting Multiple NEs3-27 3.5.7.4 Removing a Deleted NEback again 3.6 How Do I Build Links?3.5.8 Restoring a Deleted NE 3.5.9 Searching for an NE3-29 3.6.2 Overview of Supported LinksLinks Supported Between NEs at Compatible Layer Rates 3-30NE Model Supports Links with These NEs at Compatible Layer Rates3.6.2 Overview of Supported Links 3-31Links Supported Between NEs at Compatible Layer Rates continued Supported NE LinksPhysical 3-32NE Model NE CardPhysical 3-33NE Model NE CardFile choose Configuration Link TableConfiguration 3.6.3 Viewing the Link TableField Descriptions for the Link Table 3-35Field DescriptionIs Link Valid 3-363.6.5 Filtering Links in the Network Map 3.6.4 Filtering the Link Table3-37 3-38 3.6.6 Creating LinksProtection Direction 3-39Link Attributes Panel 3-40Step 4 Click Finish Table 3-12 Field Descriptions for the Create Link WizardField Descriptions for the Create Link Wizard continued 3-41Link Destination Panel Summary of Link Color 3.6.7 Modifying Links3-42 Table 3-12 Field Descriptions for the Create Link Wizard continuedTable 3-14 Field Descriptions for the Modify Link Wizard 3-43Field DescriptionField Descriptions for the Modify Link Wizard continued 3.6.8 Deleting Links3.6.9 Viewing Link Utilization 3-443-45 3.6.10 Filtering the Link Utilization TableField Descriptions for the Link Utilization Table 3.7.1 Customizing a Network Map 3.7.3 Adjusting the Zoom Level or Pan Position3.7 How Do I Use Network Maps? 3.7.1 Customizing a Network Map3-47 b. Click UI Properties3.7.2 Viewing a Node in the Network Map 3.7.3 Adjusting the Zoom Level or Pan Position3-48 3-49 3.7.4 Modifying a Node Icon or a Map Background Image3.7.4.1 Modifying a Node Icon 3.7.4.2 Modifying a Map Background3.7.5 Saving Changes to the Network Map 3.8 How Do I Discover the Network for Optical and Routing Devices?3-50 3-51 3.8.1 Discovering CTC-Based NEs3.8.2 Discovering ONS 155xx NEs 3.8.2.1 Discovery Information Tabletime stamp 3.8.3 Rediscovering ONS 155xx, CRS-1, and XR 12000 NEstime stamp 3-523-53 3.8.4 Resetting the Resync Interval3.9 How Do I Discover the Network for MGX Voice Gateway Devices? Step 2 Expand NE Service3-54 3-55 3.9.1 Discovering NEsSSM Generation 1 Message Set 3-56 3.10.1.1 Setting Up External or Line Timing for CTC-Based SONET NEsSSM Generation 2 Message Set AMI alternate mark inversion 3-573-58 3.10.1.2 Setting Up Internal Timing for CTC-Based SONET NEsSteps 1 through 6 and choose Configuration NE Explorer Configuration NE Explorer3-59 3-60 3.10.2.1 Setting Up External or Line Timing for CTC-Based SDH NEsSDH SSM Message Set 3-61 unframed , FAS , FAS + CASStep 6 In the Status subtab, complete the following information 3-62Internal Clock 3.10.2.2 Setting Up Internal Timing for CTC-Based SDH NEsInternal Clock 3-633.11.1.2 Displaying the List of Available Clock Sources 3.11.1.1 Configuring Global Clocking3.11 How Do I Synchronize the Network for MGX Voice Gateway Devices? 3.11.1 Viewing Clocking Sources3-65 3.11.1.1 Configuring Global Clocking3.11.1.2 Displaying the List of Available Clock Sources 3.11.1.3 Displaying the List of Manual Clock Sources3.11.1.4 Creating a Manual Clock Source 3.12 How Do I Test Connectivity for Optical and Routing Devices?3-66 3-67 3.12.2 Testing NE Connectivity3.13 How Do I Test Connectivity for MGX Voice Gateway Devices? 3.12.1 Pinging an NEStep 3 Enter the Service Level username and password 3-68