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Patch Release Note

PCR: 03618 Module: DHCP

Level: 3

The SHOW DHCP CLIENT command output showed a ClientId value even when the State for the client entry was Unused. This issue has been resolved.

PCR: 03619

Module: IPv6

Level: 4

When the SET IPv6 FILTER command specified a filter that did not exist, an Operation successful message was displayed as well as an error message. This issue has been resolved.

PCR: 03620

Module: IPV6

Level: 3

The 16-bit reserved field after the maximum response code field was not set to zero, as specified by the Internet Draft “Multicast Listener Discovery Version 2 (MLDv2) for IPv6”. This issue has been resolved.

PCR: 03621

Module: IPG

Level: 3

At startup, the switch was not sending or receiving a complete set of linktrap messages. This issue has been resolved.

PCR: 03624

Module: IPV6

Level: 3

The ADD IPV6 FILTER and SET IPV6 FILTER commands accepted a SESSION parameter when the PROTOCOL parameter was not TCP. The SESSION parameter specifies the type of TCP packet to match. This issue has been resolved.

PCR: 03625

Module: STP, SWI

Level: 4

The MIB object dot1dStpTimeSinceTopologyChange has been implemented to record when a topology change is detected by the bridge.

PCR: 03626

Module: CLASSIFIER

Level: 3

The ETHFORMAT parameter, of the CREATE CLASSIFIER command, was accepting unsupported values. This issue has been resolved.

PCR: 03628

Module: IPV6

Level: 3

The IPv6 priority filter was not working in SwitchBlade and AT-9800 Series

Switches. This issue has been resolved.

PCR: 03633 Module: SWCX

Level: 3

The IPv6 neighbour cache was not clearing when the interface was either disconnected or failed. Now, when an interface either fails or is disconnected, the neighbour cache is cleared after a short delay.

PCR: 03637

Module: IPV6

Level: 1

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

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Allied Telesis SB251-13 manual PCR 03618 Module Dhcp Level, PCR Module STP, SWI Level, PCR Module Classifier Level

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.