28CHAPTER 3: RELEASE ISSUES

■Current autonegotiation status is now correctly reflected the first time that you view the Ethernet summary and detail displays. (27864)

■Whenever a non-switch fabric module is reset (with the

module nvData reset command, by inserting the module into a CoreBuilder 9000 chassis, by doing a warm reset, by running service diagnostics, and so forth) or a backplane port is disabled and then reenabled, the links to the switch fabric module no longer go down on some occasions and are now always reestablished. (30063)

Downloading Release 3.0.1 software to the 9-port Gigabit Ethernet Switch Fabric Module (Model Number 3CB9FG9) or 24-port Gigabit Ethernet Switch Fabric Module, 12 trunks (Model Number 3CB9FG24T) resolves this problem. (30063)

Bridging ■ You can now list the bridge port address table and walk through MIBs without causing Trunk Control Message Protocol (TCMP) enabled trunk ports to go down, or causing Spanning Tree Protocol (STP) topology changes. (23076 and 24547)

■When a port enters the Spanning Tree forwarding state, the root bridge no longer erroneously sends a new root trap instead of a topology change trap. (28665)

■Enabling the Spanning Tree Protocol (STP) on a port that already had STP enabled no longer results in an erroneous Spanning Tree topology change trap. (28655)

■The 36-port 10/100BASE-TX Layer 2 modules (Model Numbers 3CB9LF36R and 3CB9LF36T) now correctly populate the address table for Transcend® Address Tracker. (26575)

■Transcend Address Tracker polling no longer causes STP convergence. (26879)

■On modules in slots 13 through 16 of a 16-slot chassis, the first backplane port no longer goes into the blocking state when the second backplane port is forwarding. (28737)

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3Com 3CB9LG9MC, 3CB9LF36RL, 3CB9LF36TL, 3CB9LF20MM, 3CB9LF20R, 3CB9LF10MC Whenever a non-switch fabric module is reset with
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3CB9LF36R, 3CB9LF36TL, 3CB9LF20R, 3CB9LF36RL, 3CB9LF36T specifications

The 3Com 3CB9LF20MM, 3CB9LF10MC, 3CB9LG9MC, 3CB9LF36T, and 3CB9LF36RL are advanced networking solutions that exemplify the commitment of 3Com to delivering high-performance products for both small and large enterprises. These models feature varying specifications to accommodate different network demands while ensuring reliability and efficiency.

The 3CB9LF20MM model is designed with flexibility in mind, making it an ideal choice for small to medium-sized businesses. It supports multiple network protocols ensuring seamless integration and is equipped with enhanced security features that protect sensitive data. This model excels in environments that require high-speed connectivity and robust throughput.

Next, the 3CB9LF10MC stands out due to its compact design, making it perfect for businesses with limited space. It offers exceptional performance while maintaining low power consumption, enabling organizations to reduce their carbon footprint. This unit also includes advanced Quality of Service (QoS) features, allowing administrators to prioritize critical applications and ensure optimal network performance.

The 3CB9LG9MC is particularly noteworthy for its scalability. It is engineered to support growing network demands and can accommodate a substantial number of users without compromising performance. This model leverages cutting-edge technologies, such as advanced VLAN support and multicast routing, to facilitate efficient network management. Its robustness makes it suitable for larger enterprise environments or data-intensive applications.

The 3CB9LF36T model is designed for high capacity and speed, making it suitable for organizations that require increased bandwidth. This switch can handle heavy traffic loads effectively, ensuring smooth operation for bandwidth-intensive tasks and applications. Additionally, it comes equipped with multiple gigabit Ethernet ports, providing flexibility for various network configurations.

Lastly, the 3CB9LF36RL model features redundancy and failover capabilities, making it an excellent choice for mission-critical environments. The design emphasizes reliability, with built-in features that allow for uninterrupted service, even in the face of hardware failures. This model ensures continuous connectivity, an essential requirement for organizations where downtime can lead to significant financial loss.

In summary, the 3Com 3CB9 family of networking solutions offers a diverse array of features and technologies designed to meet varying organizational needs. From scalability and security to high capacity and reliability, these models cater to a broad spectrum of networking requirements, ensuring that businesses can maintain optimal performance in their operations.
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