62

Patch Release Note

SET SWITCH BLADE settings are now only added to the configuration file if they differ from the default settings.

PCR: 03060

Module: CORE, SWI

Level: 3

Support has been added, to the MIB-2 interface MIB, for the port interface.

This means that port counters can now be shown.

PCR: 03066

Module: SWI

Level: 2

If a hardware filter was added to the switch, with a source VLAN and a destination port of 1, then a host connected to the switch could not PING a host on a different port. This issue has been resolved.

PCR: 03071 Module: CORE

Level: 2

An unexpected restart that occurred when upgrading a SwitchBlade from

Release 2.4.4 to Release 2.5.1 was caused by NVS generating an SNMP trap.

This issue has been resolved.

PCR: 03079

Module: IPG, SWI

Level: 1

Static routes were occasionally not added to all hardware tables across all instances. This would affect connectivity if an instance had a default route added to its table that pointed out one of its ports. This issue has been resolved.

PCR: 03088

Module: SWI

Level: 2

Ports could not be added to the default VLAN after a hotswap, if the default VLAN was Protocol, Subnet, MAC address, or Limited protocol based. This issue has been resolved.

PCR: 03105

Module: FIREWALL

Level: 3

Incorrect handling of TCP sessions, and poor load balancing performance could be caused by TCP virtual balancers not selecting a new resource if required. This issue has been resolved.

PCR: 03112

Module: IPV6

Level: 3

The ADD IPV6 ND command now has a PORT parameter which means that it can be associated with the VLAN parameter.

PCR: 03118

Module: CORE

Level: 4

Changes have been made to the SysDescription.

PCR: 03119

Module: CLASSIFIER

Level: 4

TCP source and TCP destination ports were swapped when viewed in the

GUI. This issue has been resolved.

PCR: 03138

Module: SWI

Level: 2

Packets that were sent out a default route could have an incorrect source IP address, if the interface route to the destination IP address existed but was down. This issue has been resolved.

PCR: 03141

Module: IPG

Level: 3

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

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Allied Telesis SB251-13 manual PCR 03071 Module Core Level, PCR Module IPG, SWI Level, PCR Module Core 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.