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Patch Release Note

The DPORT parameter in the ADD SWITCH HWFILTER command was omitted when the configuration was generated. This issue has been resolved.

PCR: 03023

Module: SWI

Network affecting: No

The SET SWITCH PORT ACCEPTABLE command did not work correctly on all specified port numbers. This issue has been resolved.

PCR: 03028

Module: SWI

Network affecting: No

A warning message was generated when a slave line card was not initialised, and the configuration script was not loaded. This issue has been resolved.

PCR: 03030

Module: SWI

Network affecting: No

RIP was not operating correctly because a MAC address search returned the wrong port number. This issue has been resolved.

PCR: 03031

Module: FIREWALL

Network affecting: No

The ADD FIREWALL POLICY RULE command included an erroneous check on port ranges for non-NAT rules. This check is now restricted to NAT rules.

PCR: 03034

Module: SWI

Network affecting: No

Executing the SET IP INTERFACE and SET IPX INTERFACE commands on a SwitchBlade produced debugging output on the ASYN port. This issue has been resolved.

PCR: 03037

Module: QOS

Network affecting: No

A new value is now shown in the output of the SHOW QOS POLICY command. This is the value of the port bandwidth used when the default traffic class percentage bandwidth is set on a QoS Policy.

PCR: 03039

Module: SWITCH, IPG

Network affecting: No

Adding a layer 2 filter on a SwitchBlade did not block traffic to the end host as intended. This issue has been resolved.

PCR: 03043

Module: SWITCH

Network affecting: No

On a SwitchBlade, PCI errors occurred periodically after a line card was hotswapped. This issue has been resolved.

PCR: 03047 Module: CORE

Network affecting: No

The board revision number for the slave control blade was erroneously set to the same number as the master control blade. This issue has been resolved.

PCR: 03428

Module: STP

Network affecting: No

If a port belongs to an enabled STP instance, but the port has been disabled from STP operation with the DISABLE STP PORT command, the port will not respond to ARP requests. This patch implements a workaround that allows disabled STP ports to respond to ARP requests.

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

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Allied Telesis SB251-13 manual PCR Module Firewall Network affecting No, PCR Module QOS Network affecting No

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.