Patch SB251-13 For SwitchBlade 4000 Series Switches and AT-9800 Series Switches

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was correctly connected to another port) then the trunk group speed should have applied to all the ports in the trunk, but it did not. Similarly, if a port was added to a trunk group, and the port status was ‘down’, but it was later linked correctly, then the trunk group speed should have applied to the ports in the trunk. This issue has been resolved.

PCR: 03243

Module: SWI

Level: 2

After auto negotiation had finished between two ports, the port on the SwitchBlade would not show link up status when the SHOW SWITCH PORT command was executed. The auto negotiation process is now restarted if auto negotiation is completed and the link is shown as down.

PCR: 03249

Module: SWI

Level: 4

The LEDs on line cards now continue to flash when activity exists. Previously if a cable was connected and disconnected to Line 48 and G8 ports, with traffic being transmitted from the other end, then the LED would stop flashing, even when there was activity on the link.

Features in SB251-03

Patch file details are listed in Table 7.

Table 7: Patch file details for Patch SB251-03.

Base Software Release File

sb-251.rez

 

 

Patch Release Date

12-Mar-2003

 

 

Compressed Patch File Name

sb251-03.paz

 

 

Compressed Patch File Size

68784 bytes

 

 

Patch SB251-03 includes all issues resolved and enhancements released in previous patches for Software Release 2.5.1, and the following enhancements:

PCR: 02361

Module: SWI

Level: 4

The SwitchBlade mirror port field on the second instance of a switch chip was displaying as though it was the first instance. For example, if 2.26 was configured as the mirror port, the GUI mirror object would return 2.2. The first chip instance was not affected. This issue has been resolved.

PCR: 02527

Module: TCP

Level:3

TCP6 did not send a TCP Reset message under some circumstances, for example when the Telnet server was disabled. This issue has been resolved.

PCR: 03025

Module: GUI

Level:2

A buffer address was incrementing and not returning buffers for reuse when the command line interface was accessed via the GUI interface. This issue has been resolved.

PCR: 03055

Module: SWI

Level: 4

If the SET SWITCH BLADE command was executed with the default settings, then the default settings were added to the configuration file. The

Patch SB251-13 for Software Release 2.5.1 C613-10361-00 REV M

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Allied Telesis SB251-13 manual Features in SB251-03, PCR Module TCP Level3, PCR Module GUI Level2

SB251-13 specifications

The Allied Telesis SB251-13 is a robust Layer 2 managed switch designed to meet the demands of various networking environments. With a comprehensive set of features, it serves as an ideal solution for enterprises looking to enhance their network infrastructure while maintaining performance and reliability.

One of the standout features of the SB251-13 is its 24 Gigabit Ethernet ports, which provide high-speed connectivity essential for modern applications. This switch supports both copper and fiber connections, making it versatile for different deployment scenarios. Additionally, it includes two SFP (Small Form-Factor Pluggable) ports that enable flexibility in uplink configurations, allowing for connectivity over longer distances with fiber optics.

The switch operates on a Layer 2 architecture, which ensures efficient data handling and robust traffic management. With VLAN (Virtual Local Area Network) support, users can segment their networks for improved traffic isolation and security. This feature is particularly beneficial in environments where segmentation is critical for performance and compliance.

Quality of Service (QoS) is another critical characteristic of the SB251-13, enabling priority-based traffic handling. This means that time-sensitive data, such as VoIP or video streams, can be given precedence over less critical traffic. This prioritization enhances the overall user experience and is vital for ensuring the smooth operation of real-time applications.

Allied Telesis also includes advanced security features in the SB251-13, such as port security, MAC address filtering, and access control lists (ACLs). These measures help protect the network from unauthorized access and potential threats, making it suitable for both enterprise and educational environments.

Power over Ethernet (PoE) support is another significant advantage of the SB251-13. This feature allows the switch to provide power to connected devices like IP cameras, phones, and access points, eliminating the need for separate power sources and making installations cleaner and more efficient.

The SB251-13 is also equipped with a user-friendly web-based management interface, facilitating easy configuration and monitoring. Network administrators can quickly set up, manage, and troubleshoot, streamlining operations and reducing downtime.

In conclusion, the Allied Telesis SB251-13 stands out as a sophisticated managed switch that combines performance, security, and manageability. Its rich feature set makes it a valuable asset for organizations aiming to build a reliable and efficient network infrastructure.