Figures

Figure 1-1:Switch management on the BladeCenter management module 26
Figure 1-2:BOOTP Relay Agent Configuration	30
Figure 1-3:DHCP Relay Agent Configuration	31
Figure 2-1:Authenticating a Port Using EAPoL	69
Figure 3-1:Default VLAN settings 81
Figure 3-2:Port-based VLAN assignment 82
Figure 3-3:802.1Q tagging (after port-based VLAN assignment) 82
Figure 3-4:802.1Q tag assignment 83
Figure 3-5:802.1Q tagging (after 802.1Q tag assignment) 83

Figure 3-6:Example 1: Multiple VLANs with VLAN-Tagged Gigabit Adapters 85 Figure 4-1:Port Trunk Group 94

Figure 4-2:Port Trunk Group Configuration Example 97

Figure 5-1:Using Multiple Instances of Spanning Tree Group 111

Figure 5-2:Implementing Multiple Spanning Tree Groups			112
Figure 7-1:QoS Model 124
Figure 7-2:Layer 3	IPv4 packet 134
Figure 7-3:Layer 2	802.1q/802.1p VLAN tagged packet		139
Figure 8-1:The Router Legacy Network 145
Figure 8-2:Switch-Based Routing Topology		146
Figure 8-3:DHCP Relay Agent Configuration		154

Figure 11-1:iBGP and eBGP 172

Figure 11-2:Distributing Network Filters in Access Lists and Route Maps 175 Figure 11-3:BGP Failover Configuration Example 182

Figure 11-4:Route Aggregation and Default Route Redistribution 185 Figure 12-1:OSPF Area Types 189

Figure 12-2:OSPF Domain and an Autonomous System 190 Figure 12-3:Injecting Default Routes 197

Figure 12-4:OSPF Authentication 200 Figure 12-5:A Simple OSPF Domain 205 Figure 12-6:Configuring a Virtual Link 207 Figure 12-7:Summarizing Routes 211 Figure 13-1:Basic Layer 2 Failover 220

Figure 13-2:Two trunks, each in a different Failover Trigger 221

42C4911, January 2007

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.

Nortel Networks 42C4911 manual Figures

Models: 42C4911

Figures

Figure 1-1:Switch management on the BladeCenter management module 26

Figure 1-2:BOOTP Relay Agent Configuration

Figure 1-3:DHCP Relay Agent Configuration

Figure 2-1:Authenticating a Port Using EAPoL

Figure 3-1:Default VLAN settings 81

Figure 3-2:Port-based VLAN assignment 82

Figure 3-3:802.1Q tagging (after port-based VLAN assignment) 82

Figure 3-4:802.1Q tag assignment 83

Figure 3-5:802.1Q tagging (after 802.1Q tag assignment) 83

Figure 3-6:Example 1: Multiple VLANs with VLAN-Tagged Gigabit Adapters 85 Figure 4-1:Port Trunk Group 94

Figure 4-2:Port Trunk Group Configuration Example 97

Figure 5-1:Using Multiple Instances of Spanning Tree Group 111

Figure 5-2:Implementing Multiple Spanning Tree Groups

112

Figure 7-1:QoS Model 124

Figure 7-2:Layer 3

IPv4 packet 134

Figure 7-3:Layer 2

802.1q/802.1p VLAN tagged packet

139

Figure 8-1:The Router Legacy Network 145

Figure 8-2:Switch-Based Routing Topology

146

Figure 8-3:DHCP Relay Agent Configuration

154