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Nortel Networks 42C4911 manual 248 „ Appendix a Troubleshooting

Models: 42C4911

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Alteon OS Application Guide

Layer 3 Port Mirroring

(Monitoring Port and Egress Port in the same GEA)

In this scenario, you observe Layer 3 port mirroring on an egress port, and both the egress port and the monitoring port are in the same Gigabit Ethernet Aggregator (GEA) unit. To find out which GEA unit each port resides on, use the /info/geaport command.

The monitoring port always shows a tagged packet with a VLAN ID (VID) of the egress port.

NOTE – In general, the GbESM mirrors all Layer 3 ingress packets after the packets are routed, that is, all Layer 3 packets observed at the monitoring port have source MAC address, destina- tion MAC address, VLAN, TTL, IP checksum changed as if they have gone through the rout- ing process to the egress port.

248 „ Appendix A: Troubleshooting

42C4911, January 2007

Page 247 Page 249
Page 248
Image 248
Nortel Networks 42C4911 manual 248 „ Appendix a Troubleshooting
Page 247 Page 249

42C4911 specifications

Nortel Networks 42C4911 is a key hardware component designed to meet the needs of modern telecommunications infrastructure. As part of Nortel's extensive portfolio, the 42C4911 has made a significant impact on network design and operation, particularly in enterprises requiring reliable and efficient communication solutions.

One of the standout features of the 42C4911 is its modularity. This allows for flexible configurations and upgrades, enabling organizations to adapt to changing technology requirements and business demands. The design philosophy behind the 42C4911 emphasizes scalability, allowing users to start with a basic setup and expand it as their networking needs grow. This feature is particularly appealing to medium and large enterprises that anticipate increased data and communication requirements over time.

In terms of technology, the 42C4911 supports various telecommunications standards, making it versatile for multiple applications. It typically integrates with other Nortel equipment and can work with third-party devices, ensuring seamless interoperability across different platforms. This is critical as organizations look to create unified communications systems that can handle voice, data, and video traffic efficiently.

The 42C4911 is known for its robust performance and reliability. It is designed to operate continuously under demanding conditions, which is essential for organizations that rely on constant connectivity for their operations. Its built-in redundancy features help safeguard against potential failures, thus enhancing the overall stability of the network. This reliability is further complemented by Nortel's commitment to high-quality manufacturing standards, ensuring that users receive a durable and efficient product.

Security is another major consideration for any networking device, and the 42C4911 provides advanced security features to protect sensitive data. With increasing cybersecurity threats, organizations prioritize devices that offer strong encryption and access control mechanisms. The 42C4911 addresses these needs while facilitating secure communication channels for users, which is essential in today's increasingly interconnected world.

Overall, the Nortel Networks 42C4911 stands out as a versatile and powerful component in the telecommunications landscape. Its modular design, compatibility with diverse technologies, reliability, and emphasis on security make it an appealing choice for organizations looking to enhance their networks. As companies continue to navigate the complexities of communication, devices like the 42C4911 play a crucial role in ensuring that they remain connected and efficient.