30

Patch Release Note

DVMRP unicast Prune, Graft, and Graft-Ackmessages are now switched at

Layer 2.

PCR: 03078 Module: SWI, VLAN

Level: 3

DVRMP messages Prune, Graft and Graft-Ackare now switched at Layer 2.

PCR: 03091

Module: SWI

Level: 4

L2/L3/L4 hashing (used to allocate ports within a trunk group) was incorrectly formatted. This issue has been resolved.

PCR: 03095 Module: DHCP

Level: 2

DHCP policies are no longer stored in alphabetical order in the DYNAMIC

CONFIGURATION script because this did not work when the DHCP

INHERIT parameter was used.

PCR: 03111

Module: FIREWALL

Level: 1

TCP sessions could fail if the public side of the firewall was using Kerberos and the private side had a very slow connection to the firewall. This issue has been resolved.

PCR: 03116

Module: FIREWALL

Level: 2

An error sometimes occurred in the firewall module under heavy FTP or

RTSP traffic loads. This issue has been resolved.

PCR: 03120

Module: ETH, IPG

Level: 4

The SHOW IP INTERFACE command was showing ETH interfaces as up at startup, when SHOW INTERFACE and SHOW ETH STATE had them as down. This issue has been resolved.

PCR: 03124

Module: IPV6

Level: 4

The SHOW IPv6 COUNTER command now shows the outAdvert messages in the Total Out Messages counter field.

PCR: 03126 Module: DHCP

Level: 2

DHCP assigned incorrect IP addresses to clients shifting from a relayed to a non-relayed range. This issue has been resolved.

PCR: 03139

Module: IPV6

Level: 3

The SHOW IPV6 INTERFACE command was not displaying the link layer address and EUI when the interface was down. This issue has been resolved.

PCR: 03144

Module: CURE

Level: 4

Users with either USER or MANAGER level privilege can now execute the STOP PING and STOP TRACE commands. Previously, MANAGER privilege was needed to execute these commands.

PCR: 03145

Module: IPG

Level: 4

The SET IP ROUTE FILTER command was not processing some parameters.

This issue has been resolved.

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

Page 30
Image 30
Allied Telesis SB251-13 manual PCR 03078 Module SWI, Vlan Level, PCR 03095 Module Dhcp Level, PCR 03126 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.