Allied Telesis SB251-13 manual

Models: SB251-13

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

31

PCR: 03146

Module: PORT

Level: 4

The PAGE parameter in the SET ASYN command now only accepts numeric values between 0 and 99, ON or OFF, and TRUE or FALSE.

PCR: 03147

Module: BGP

Level: 4

When the DISABLE BGP DEBUG command was used, debugging messages were still being displayed by the BGP module. This issue has been resolved.

PCR: 03150

Module: FIREWALL

Level: 4

The CREATE FIREWALL POLICY command was not checking for valid name entries, so invalid printing characters could be used for policy names. This issue has been resolved.

PCR: 03152

Module: IPG

Level: 4

An additional check has been added to validate the MASK specified in an

ADD IP ROUTE command. The check tests that the mask is contiguous.

PCR: 03155

Module: FFS

Level: 4

The SHOW FFILE command output has changed. The first column that listed where the file was stored has been removed. The title of the original second column (now the first column) has been changed from “creator” to “module”. The file format specifier has been altered from:

DDDD:MMMM\NNNNNNNN.TTT

to:

MMMM\NNNNNNNN.TTT

PCR: 03163

Module: IPG

Level: 3

IGMP Snooping did not use DVMRP messages to identify a port. This issue has been resolved.

PCR: 03166

Module: IPG

Level: 4

The output of the SHOW IP IGMP COUNTER and SHOW IGMPSNOOPING COUNTER commands was incorrect. This issue has been resolved.

PCR: 03167 Module: DVMRP

Level: 2

When multicasting to a VLAN interface, if more than 2 DVMRP neighbours existed on a single port, and any one of those neighbours was pruned, the multicast data would stop flowing to the port. This happened even though it was still required for the remaining DVMRP neighbours. This issue has been resolved.

PCR: 03169

Module: IPV6

Level: 2

Duplicate Address Detection (DAD) was not sent on VLAN interfaces. This issue has been resolved.

PCR: 03172

Module: FIREWALL

Level: 2

Telnet access was not being denied when used between public interfaces.

This issue has been resolved.

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

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Allied Telesis SB251-13 manual

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.