22CHAPTER 2: RELEASE HIGHLIGHTS

Configuring One The 36-port 10/100BASE-TX Desktop Switching Modules (Model

Untagged System Numbers 3CB9LF36RL and 3CB9LF36TL) support a backplanePortPVID

VLANcommand that allows you to assign one virtual LAN (VLAN) to be an untagged system VLAN on the backplane. Tagged frames that the module sends to the backplane on the selected untagged system VLAN are stripped of their tags and priority bits. All frames that belong to other VLANs are sent to the backplane tagged.

This command applies only to packets that are sent to the backplane on the selected system VLAN.

To use this command:

1From the CoreBuilder 9000 top-level menu, enter: backplanePortPVID

The system displays the current setting for the untagged port VLAN ID (PVID) number, using the format Current PVID = n (where n is the current untagged VLAN ID). By default, this line displays the default VLAN (PVID = 1).

2Select the PVID number of the VLAN that you want to be untagged on the backplane.

Example:

Menu options (CoreBuilder 9000-153B6C):

----------------------------------------

module

- Administer module-level functions

ethernet

- Administer Ethernet ports

bridge

- Administer bridging/VLANs

snmp

- Administer SNMP

backplanePortPVID

- Set Backplane Port VLAN ID for untagged

 

VLAN

disconnect

- Disconnect and return to Management

 

Console

Type ? for help.

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CB9000@slot 5.1 [36L-E/FEN-TX-L2] (): backplanePortPVID

Current PVID = 1

Enter new Value (1-4094) [1]: 3

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3Com 3CB9LF20R, 3CB9LF36RL, 3CB9LF36TL, 3CB9LG9MC, 3CB9LF20MM, 3CB9LF10MC manual Vlan

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.

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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.