Cisco Systems ONS 15327 manual SSM Generation 1 Message Set, Message Quality Description

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78-11719-02 July 2001

Using Cisco Transport Controller 3

Figure 3-21

An ONS 15327 timing example with external, BITS, and internal timing

BITS1 source

BITS2 source

Node 1

Timing External

Ref 1: BITS1

Ref 2: BITS2

Ref 3: Internal (ST3)

Slot 5

Slot 6

Node 4

Slot 6

Slot 5

Node 2

Timing Line

Timing Line

Ref 1: Slot 6

 

 

Ref 1: Slot 5

Ref 2: Slot 5

 

 

Ref 2: Slot 6

Ref 3: Internal (ST3)

 

 

Ref 3: Internal (ST3)

 

Slot 5

Slot 6

 

 

 

 

Slot 6

Slot 5

BITS1 BITS2

out out

Third party equipment

Node 3

Timing Line

Ref 1: Slot 5

Ref 2: Slot 6

Ref 3: Internal (ST3)

34726

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. They 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 you enable SSM for the ONS 15327, consult your timing-reference documentation to determine which message set to use. Table 3-13and Table 3-14show the Generation 1 and Generation 2 message sets.

Table 3-13

SSM Generation 1 Message Set

 

 

 

Message

Quality

Description

 

 

 

PRS

1

Primary reference source - Stratum 1

 

 

 

STU

2

Sync 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

 

 

 

Cisco ONS 15327 User Documentation

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Contents Overview Using Cisco Transport ControllerProcedure Install Netscape Windows Installing CTCPreparing PCs to Run CTC Procedure Install Netscape Solaris Procedure Extracting the CTC Version 2.3 Files for SolarisPreparing Solaris Workstations to Run CTC If gzip required is not installed, install it now by typing Procedure Install the Java Files SolarisRemove the intermediate tar files, for example Procedure Enable Applet Security for CTC Procedure Set Up a PC for Direct Connection Connecting PCs to the ONSCheck Enable DNS for Windows Resolution Direct ConnectionsNetwork dialog boxes for Windows 95/98 and Windows NT Step Click Specify an IP addressTCP/IP Properties dialog box Gateway tab Windows 95/98 Settings Procedure Disable Proxy Service Using Windows with NetscapeLAN Connections Connecting to the ONS 15327 with TL1 Terminals Remote Access to the ONSLogging into CTC Viewing CTC Procedure Log into the CTCNode View Card Colors Node ViewCard Color Status Node View Tabs and Subtabs Description Network View Color Alarm StatusNode Status Background Image Action ProcedureNetwork View Actions Tab Description Preferences TabsCreating Domains Procedure Create a New DomainChoose Create New Domain Example of a customized map graphic10 The CTC card view showing an E10/100 card Card ViewToolbar and Menu Bar Options CTC NavigationTool Description Table Data Table Display Options Task Click Right-Click Shortcut Menu Inventory Data13 Viewing hardware information about installed cards Alarm Data Viewing ONS 15327 Alarms, Conditions, and EventsColumn Description Controlling Alarm Display 15 Viewing current-session alarms and events Viewing Alarm HistoryProcedure Set Up General Node Information Setting Up General Node InformationRetrieving alarms Click the Provisioning General tabsClick Apply Procedure Set Up Network Information Setting Up General Network InformationChanging the IP Address 17 Entering network information Click Apply Snmp Setting Up ONS 15327 SecurityONS 15327 Security Idle Times Procedure Create New UsersSecurity Level Idle Time Click OKProcedure Edit User Security at the Network Level all nodes Procedure Edit User Security Node LevelClick the Provisioning Security tabs Procedure Create Protection Groups for Optical Cards Setting Up Protection GroupsProcedure Edit Protection Groups Procedure Delete Protection Groups Setting Up TimingClick the Maintenance Protection tabs Click the Provisioning Protection tabsMessage Quality Description SSM Generation 1 Message SetSSM Generation 2 Message Set Procedure Set Up ONS 15327 TimingJuly Using Cisco Transport Controller Using Virtual Wires Setting Up External User-Provisionable AlarmsSetting timing parameters Procedure Provision External Alarms External Input Alarms24shows the External Alarms subtab External Output Controls Procedure Provision External ControlsExample of the external alarm input and output process Creating Alarm ProfilesAlarm Profile Buttons Heading Description Alarming tab showing the default profile and a new profileClick the Provisioning Alarming tabs Procedure Create an Alarm ProfileAlarm Profile Editing Options Button DescriptionProcedure Apply an Alarm Profile at the Node View Procedure Apply an Alarm Profile at the Card ViewClick the Provisioning DS1 or DS3 Alarming tabs Click Force still need to ApplyExportable CTC Table Data Printing and Exporting CTC DataView Tab Subtab Procedure Export CTC Data Procedure Print CTC Data29 Exporting CTC data as Html Step Displaying CTC Data in Other Applications
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ONS 15327 specifications

Cisco Systems ONS 15327 is a high-performance optical networking solution tailored for service providers and enterprises looking to enhance their optical communication infrastructure. This versatile platform is recognized for its robust performance, scalability, and flexibility, making it suitable for a wide array of applications ranging from broadband access to metropolitan area networking.

One of the standout features of the ONS 15327 is its ability to handle multiple data types over a single platform. It supports a rich array of protocols, including Ethernet and SONET/SDH, allowing service providers to deliver a diverse portfolio of services to their customers. This multiservice capability simplifies the network architecture, reducing operational complexity and costs.

The ONS 15327 is designed with a modular architecture, which enables operators to customize and scale their network as demand grows. It supports a variety of card options for different media types, wavelengths, and capacity requirements. This modularity not only facilitates straightforward upgrades but also allows for efficient network management.

In terms of technology, the ONS 15327 leverages dense wavelength division multiplexing (DWDM) capabilities to maximize the utilization of available fiber bandwidth. This allows for an impressive increase in transmission capacity without the need for additional fiber installations, making it a cost-effective solution for expanding networks.

Another significant characteristic of the Cisco ONS 15327 is its advanced performance monitoring and management features. Built-in diagnostic tools provide real-time visibility into network performance, enabling prompt identification and troubleshooting of potential issues. This proactive approach to network management enhances service reliability and customer satisfaction.

Security is also paramount in the ONS 15327. The platform integrates various security features and protocols to protect the data traversing the network, ensuring compliance with industry standards and safeguarding sensitive information.

Furthermore, the equipment is designed for easy integration into existing infrastructures. Its compatibility with Cisco’s broader networking solutions allows for seamless interconnection with routers, switches, and other devices, facilitating comprehensive network solutions.

In conclusion, Cisco Systems ONS 15327 stands out as a powerful optical networking platform that combines versatility, scalability, and advanced management features. Its ability to support various protocols and harness optical technologies makes it an essential tool for organizations aiming to optimize their telecommunications infrastructure while minimizing costs and complexity.
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