Cisco Systems ONS 15327 manual Vlan Cannot Connect to Network Device from Untag Port

Models: ONS 15327

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Chapter 1 General Troubleshooting

CTC Operation Troubleshooting

Step 7 Verify connectivity between device A and device C by pinging between these locally attached devices (see the “1.5.4 Verify PC Connection to the ONS 15327 (Ping)” section on page 1-50). If the ping is unsuccessful:

a.Verify that device A and device C are on the same IP subnet.

b.Display the Ethernet card in CTC card view and click the Provisioning > VLAN tabs to verify that both Port 1 and Port 3 on the card are assigned to the same VLAN.

c.If a port is not assigned to the correct VLAN, click that port column in the VLAN row and set the port to Tagged or Untag. Click Apply.

Step 8 Repeat Step 7 for devices B and D.

Step 9 Verify that the Ethernet circuit that carries VLAN #1 is provisioned and that ONS 15327 #1 and ONS 15327 #2 ports also use VLAN #1.

1.6.16 VLAN Cannot Connect to Network Device from Untag Port

Symptom Networks that have a VLAN with one ONS 15327 Ethernet card port set to Tagged and one ONS 15327 Ethernet card set to Untag might have difficulty implementing Address Resolution Protocol (ARP) for a network device attached to the Untag port (Figure 1-24). They might also see a higher than normal runt packets count at the network device attached to the Untag port.This symptom/limitation also exists when ports within the same card or ports within the same chassis are put on the same VLAN, with a mix of tagged and untagged.

Figure 1-24 VLAN with Ethernet Ports at Tagged and Untag

Workstation #1

ONS Node

ONS Node

Workstation #2

 

with Ethernet card

with Ethernet card

 

VLAN port set to Tagged

VLAN port set to Untag

SONET/SDH Ethernet

55243

Table 1-24 on page 1-65describes the potential cause(s) of the symptom and the solution(s).

Cisco ONS 15327 Troubleshooting Guide, R3.4

1-64

April 2003

 

 

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Cisco Systems ONS 15327 manual Vlan Cannot Connect to Network Device from Untag Port

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.