Chapter 1 General Troubleshooting

CTC Operation Troubleshooting

Table 1-23 Ethernet Connections

Possible Problem

Solution

 

 

Improperly seated

You can fix most connectivity problems in an Ethernet network by following

connections

a few guidelines. See Figure 1-23when consulting the steps in the “Verify

 

Ethernet Connections” procedure on page 1-63.

Incorrect connections

 

 

 

Figure 1-23 Ethernet Connectivity Reference

Device "A"

Device "B"

192.168.1.25

192.168.1.75

255.255.255.0

255.255.255.0

VLAN #1 Member

VLAN #1 Member

Virtual

LAN # 1

ONS Node #1

Port #1 VLAN #1

Device "C"

Port #3 VLAN #1

192.168.1.50

 

255.255.255.0

 

VLAN #1 Member

ONS Node #2

Port #1 VLAN #1

Port #2 VLAN #1

32167

Device "D" 192.168.1.100 255.255.255.0 VLAN #1 Member

Procedure: Verify Ethernet Connections

Step 1 Verify that the alarm filter is turned OFF.

Step 2 Check for SONET alarms on the STS-N that carries the VLAN #1 Ethernet circuit. Clear any alarms by looking them up in Chapter 2, “Alarm Troubleshooting.”

Step 3 Check for Ethernet-specific alarms. Clear any raised alarms by looking up that alarm in Chapter 2, “Alarm Troubleshooting.”

Step 4 Verify that the ACT LED on the Ethernet card is green.

Step 5 Verify that Ports 1 and 3 on ONS 15327 #1 and Ports 1 and 2 on ONS 15327 #2 have green link-integrity LEDs illuminated.

Step 6 If no green link-integrity LED is illuminated for any of these ports:

a.Verify physical connectivity between the ONS 15327s and the attached device.

b.Verify that the ports are enabled on the Ethernet cards.

c.Verify that you are using the proper Ethernet cable and that it is wired correctly, or replace the cable with an Ethernet cable known to be good.

d.Check the status LED on the Ethernet card faceplate to ensure that the card booted up properly. This LED should be steady green. If necessary, remove and reinsert the card and allow it to reboot.

e.It is possible that the Ethernet port is functioning properly but the link LED itself is broken. Run the procedure in the “1.9.3 Lamp Test for Card LEDs” section on page 1-80.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

April 2003

1-63

 

 

 

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Cisco Systems ONS 15327 manual Procedure Verify Ethernet Connections, Possible Problem Solution

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.