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

5

PCR: 03747

Module: VRRP

Level: 3

An unknown interface log message was returned for VRRP if there was an interface UP or interface DOWN event due to a mismatch between a monitored interface index and the corresponding interface instance. This issue has been resolved.

PCR: 03751 Module: MLDS

Level: 3

The MLD snooping entries registered on a port were not removed when the port went down or was unplugged. This issue has been resolved.

PCR: 03764

Module: IPG

Level: 3

The IP multicast counter did not increment when IGMP, DVMRP and PIM packets were transmitted and received. This issue has been resolved.

PCR: 03769

Module: SWI

Level: 2

An error occurred in the GUI if it had been in operation for more than 20 days. This issue has been resolved.

PCR: 03778

Module: FILE, INSTALL, SCR

Level: 2

Files used during start up were backed up from NVS to FLASH even if they were already present in FLASH. This used up FLASH memory unnecessarily. This issue has been resolved so that files are only backed up when a copy does not already exist in FLASH.

PCR: 03780

Module: INSTALL

Level: 3

If a configuration file had a long file name, the SHOW CONFIG command displayed the file name using the shortened DOS 8.3 format (where file names are 8 characters long, with extensions of 3 characters). This issue has been resolved so that long configuration file names are now displayed using the DOS 16.3 format (where file names are up to 16 characters long).

PCR: 03783

Module: IPG

Level: 3

The TIMEOUT and SIZE parameters are only valid for the SET IP DNS CACHE command, but no error message was returned if either parameter was specified for the SET IP DNS command. This issue has been resolved.

PCR: 03784

Module: IPV6

Level: 3

Fragmentation of IPv6 packets now complies with RFC 2460’s requirement to align packet sizes to 8 octets.

PCR: 03791 Module: SWCX

Level: 2

Disabled copper ports on AT-SB4411 8-Port (RJ-45) Gigabit Ethernet Line Cards and AT-SB4441 8-GBIC Line Cards were not disabled on reboot. This issue has been resolved.

PCR: 03793

Module: RSVP

Level: 3

The ENABLE RSVP INTERFACE command did not succeed if IP was enabled after the RSVP interface had been created. Now, ENABLE RSVP INTERFACE will succeed regardless of when IP is enabled as long as an IP interface exists.

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 Vrrp Level, PCR 03751 Module Mlds Level, PCR Module FILE, INSTALL, SCR 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.