Chapter 2 Alarm Troubleshooting

Alarm Procedures

2.6.131 PDI-P

•Not Alarmed (NA), Non-Service Affecting (NSA)

A PDI Path (PDI-P) condition indicates a signal label mismatch failure (SLMF). An invalid signal label C2 byte in the SONET path overhead causes an SLMF. The C2 byte tells the equipment what the SONET payload envelope contains and how it is constructed. It enables a SONET device to transport multiple types of services.

The ONS 15327 encounters an SLMF when the payload, such as an ATM, does not match what the signal label is reporting. An AIS condition (see page 2-16)often accompanies the PDI-P condition. If the PDI-P is the only condition reported with the AIS condition (see page 2-16), clear the PDI-P condition to clear the AIS condition. PDI-P can also occur during an upgrade, but usually clears itself and is not a valid condition.

APDI-P condition reported on the port of an OC-N card supporting a G1000-2 card circuit might result from the end-to-end Ethernet link integrity feature of the G1000-2. If the link integrity is the cause, it typically is accompanied by an a TPTFAIL (G-Series) alarm (see page 2-120)or a CARLOSS (G Series) alarm (see page 2-33)reported against one or both Ethernet ports terminating the circuit. If TPTFAIL or CARLOSS are reported against one or both of the Ethernet ports, troubleshooting the accompanying alarm clears the PDI-P condition.

Warning Invisible laser radiation might be emitted from the end of the unterminated fiber cable or connector. Do not stare into the beam directly with optical instruments. Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100

mmmight pose an eye hazard. Use of controls or adjustments or performance of procedures other than those specified might result in hazardous radiation exposure.

Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327. Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.

Procedure: Clear the PDI-P Condition

Step 1 Verify that all circuits terminating in the reporting card are in an active state:

a.Click the Circuits tab.

b.Verify that the State column lists the port as active.

c.If the State column lists the port as incomplete, wait up to ten minutes for the ONS 15327 to initialize fully. If the incomplete state does not change after full initialization, log onto http://www.cisco.com/tac for more information or call TAC to report a service-affecting problem (1-800-553-2447).

Step 2 After determining that the port is active, ensure that the signal source to the card reporting the alarm is working.

Step 3 If traffic is affected, complete the “Delete a Circuit” procedure on page 2-128.

Caution Deleting a circuit might affect traffic.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

March 2004

2-93

 

 

 

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Cisco Systems ONS 15327 manual Pdi-P, Procedure Clear the PDI-P Condition
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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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