50

Patch Release Note

The dot1dStpPortForwardTransitions value in the dot1dBridge MIB was not correctly incremented when STP transitioned a port to the forwarding state. This issue has been resolved.

PCR: 03573

Module: IPG

Level: 2

It is now possible to configure an IP filter with the default route of 0.0.0.0.

This allows BGP to control the default route for route distribution.

PCR: 03574

Module: STP

Level: 4

The dot1dStpInfoTopChanges value in the dot1dBridge MIB was not correctly incremented when a topology change was detected by the bridge. This issue has been resolved.

PCR: 03576

Module: IPG

Level: 2

When the device received a route from two separate sources to the same destination network, RIP only used the metric value when selecting the best route. RIP now selects the route by lowest preference value, or if they are the same, by the metric.

PCR: 03578

Module: SWI

Level: 2

The DELETE SWITCH TRUNK PORT=ALL command was not returning the deleted trunk group ports to their pre-set port speed and duplex settings. This issue has been resolved.

PCR: 03582

Module: FIREWALL, IPG

Level: 4

Previously, when the ADD FIREWALL POLICY INTERFACE command activated software routing, the static IP ARP entries were removed automatically. Static IP ARP entries now remain, and the following message is displayed:

WARNING: Static ARPs associated with a particular VLAN are recommended to be deleted when Firewall is enabled on the VLAN.

PCR: 03583

Module: SWI

Level: 3

New command added to enable a single selected blade to be reset.

RESET SWITCH BLADE={blade-number}

Where blade-numberis a numeric from 1-8.

PCR: 03584 Module: MLD

Level: 3

MLD had no mechanism for dealing with an IPv6 interface changing its local link address. This issue has been resolved.

PCR: 03587

Module: SWI

Level: 2

Hot swapping blades occasionally caused fatal errors. Also, blade reinsertion was occasionally undetected. This issue has been resolved.

PCR: 03590 Module: DHCP

Level: 2

The reclaim process was disrupted if, during this process, entries about to be reclaimed to static, were changed. DHCP static entries are now fully compatible with the normal reclaiming process.

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

Page 50
Image 50
Allied Telesis SB251-13 manual PCR Module FIREWALL, IPG Level, PCR 03584 Module MLD Level, PCR 03590 Module Dhcp 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.