Allied Telesis SB251-13 manual PCR 03067 Module Dhcp Level, PCR Module SWI,VLAN Level

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

29

ENABLE IP ARP LOG

To disable it, use the command:

DISABLE IP ARP LOG

The logging of MAC addresses is disabled by default. Use the SHOW LOG command to view the MAC addresses that have been logged when the ARP cache changes.

PCR: 02583

Module: FIREWALL

Level: 2

UDP packets passed through the firewall by a reverse enhanced NAT rule were getting an incorrect IP checksum. This caused IP to discard the packets. This issue has been resolved.

PCR: 03032

Module: SWI

Level: 3

If the ENABLE IP IGMP command was executed before the ENABLE SWITCH L3FILTER command, Layer 3 filtering did not discard packets destined for the CPU. This issue has been resolved.

PCR: 03035

Module: OSPF

Level: 3

Erroneous Link State Advertisements (LSA’s) were being sent whenever the Designated Router was removed from the network. This issue has been resolved.

PCR: 03044

Module: BGP

Level: 2

During route flapping, peers were sometimes not told about routes to the same destinations as the flapping routes. This issue has been resolved.

PCR: 03059

Module: FIREWALL

Level: 3

SMTP proxy was falsely detecting third party relay under some

 

circumstances. This issue has been resolved.

 

PCR: 03062

Module: SWI

Level: 4

Previously, Get or GetNext port state information could not be obtained from the dot1dTpPortTable and the dot1dStpPortTable. This issue has been resolved.

PCR: 03067 Module: DHCP

Level: 1

When replying to a DHCP REQUEST that had passed through a DHCP relay, the broadcast bit of DHCP NAK messages was not being set. This issue has been resolved in accordance with RFC2131.

PCR: 03070

Module: BGP

Level: 2

When BGP imported other route types, it would advertise routes that had next hops of the BGP peers themselves. The BGP peers would reject these routes and close the peering session, thus preventing the exchange of routing information between BGP peers. This issue has been resolved.

PCR: 03072

Module: BGP

Level: 4

The Import parameter of the ADD, SET, DELETE and SHOW BGP commands now has an INTERFACE type. INTERFACE routes were previously grouped with STATIC routes.

PCR: 03078

Module: SWI,VLAN

Level: 3:

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

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Contents Introduction Features in SB251-13 PCR 03714 Module VLANLevel PCR 03643 Module CLNS/OSILevelPCR 03688 Module SYSRLevel PCR Module TTY, User Level PCR 03717 Module IP, Swcx LevelPCR Module SWI, STP Level PCR Module SWI LevelPCR Module Install Level PCR Module FILE, INSTALL, SCR LevelPCR Module Vrrp Level PCR 03751 Module Mlds LevelPCR 03801 Module Mlds Level PCR 03800 Module Load LevelPCR Module Firewall Level PCR Module Utility LevelPCR 03821 Module Swcx Level PCR 03819 Module Swcx LevelPCR 03823 Module Vlan Level PCR 03829 Module Swcx LevelPCR 03835 Module Vlan Level PCR 03834 Module Swcx LevelPCR Module Ospf Level PCR 03837 Module Vlan LevelPCR Module Cflash Level PCR 03857 Module Swcx LevelPCR Module SWICX, SWI Level PCR 03879 Module Dhcp LevelPCR 03887 Module Swcx Level PCR Module DHCP, Telnet LevelPCR Module IP, ARP Level PCR 03913 Module Swcx LevelPCR Module PIM Level PCR 03923 Module Core LevelPCR 03966 Module Mlds Level PCR Module SWI, Core LevelPCR Module BGP, IPG Level PCR Module SWCX, SWI LevelPCR 031003 Module QOS Level PCR 031008 Module Cflash Install LevelPCR 031005 Module Swcx Level PCR 031006 Module STP SWI LevelPCR 031033 Module Level Multicast Listener Discovery Snooping To enable MLD snooping, use the command Example output from the Show Mldsnooping command Example output from the Show Mldsnooping Counter command PCR 03744 Module IPG, Swcx Level Features in SB251-12PCR 03661 Module Swcx Level PCR 03782 Module QOS Level PCR 03777 Module QOS LevelPCR Module IPG, SWI, Vrrp Level PCR Module FIREWALL, LB LevelPCR Module LB Level PCR Module Alarm LevelPCR 03217 Module Dvmrp Level PCR Module Ping LevelPCR Module PIM, PIM6 Level PCR 03239 Module QOS Level PCR 03229 Module Load LevelPCR 032231 STP Level PCR Module SWI, IPG, PIM Level PCR Module ETH, IPG LevelPCR 03248 Module Vlan Level PCR 03256 Module MLD LevelPCR 03260 Module SWI, Snmp Level PCR 03273 Module Alarm LevelPCR Module VLAN, IPG Level PCR Module PPP LevelPCR 03316 Module Core Level PCR Module L2TP LevelPCR Module CORE, SWI Level PCR Module Level PCR Module DHCP, Q931, Telnet LevelPCR 03331 Module SWI, Vlan Level PCR Module TTY LevelFeatures in SB251-11 PCR Module SWI,VLAN Level PCR 03067 Module Dhcp LevelPCR 03095 Module Dhcp Level PCR 03078 Module SWI, Vlan LevelPCR 03126 Module Dhcp Level PCR Module Cure LevelPCR 03167 Module Dvmrp Level PCR Module Port LevelPCR Module CORE, FFS, TTY Level PCR 03185 Module Dhcp LevelPCR 03209 Module Alarm PCR 03229 Module Load Level PCR 03239 Module QOS Level PCR 03256 Module MLD Level PCR Module IPV6 Level PCR Module Firewall Level PCR 03331 Module SWI, Vlan Level PCR 03371 Module Dhcp Level PCR 03359 Module Core LevelPCR Module Ipsec Level PCR Module OSI/CLNS Level PCR 03388 Module Dhcp LevelPCR Module SSL Level PCR 03424 Module Dhcp LevelPCR 03436 Module IP, Dhcp Level PCR 03429 Module SWI, Vlan LevelPCR 03438 Module Dhcp Level PCR Module IPX LevelPCR Module PIM4 Level PCR 03443 Module Dhcp LevelPCR PCR 03469 Module Core Level PCR 03465 Module Dhcp LevelPCR Module BGP, Firewall Level PCR 03492 Module HTTP, Load LevelPCR Module Ikmp Level PCR 03515 Module Dhcp LevelPCR Module BGP, TCP Level PCR Module ALARM, Cflash LevelPCR Module HTTP, Firewall Level PCR 03547 Module Dhcp LevelPCR 03561 Module Core Level PCR 03590 Module Dhcp Level PCR Module FIREWALL, IPG LevelPCR 03584 Module MLD Level PCR 03599 Module Core Level PCR Module FW LevelPCR 03593 Module CORE, Snmp Level PCR Module STP, SWI Level PCR 03618 Module Dhcp LevelPCR Module Classifier Level PCR 03633 Module Swcx LevelPCR 03648 Module Core Level PCR 03644 Module Snmp LevelPCR 03647 Module Snmp Level PCR 03670 Module Swcx Level PCR Module File LevelPCR 03690 Module Core Level PCR 03683 Module Swcx LevelPCR 03694 Module Swcx Level PCR 03698 Module Dvmrp LevelPCR 03725 Module Swcx Level PCR 03709 Module Swcx LevelPCR Module SW Level Patch file details are listed in Table Features in SB251-08Features in SB251-07 Features in SB251-05 Features in SB251-06PCR Module SWI PCR Module SWI, Sysr LevelFeatures in SB251-04 PCR Module GUI Level2 Features in SB251-03PCR Module TCP Level3 PCR Module Core Level PCR 03071 Module Core LevelPCR Module IPG, SWI Level PCR Module Switch Network affecting No Features in SB251-02PCR 02574 Module Dvmrp Network affecting No PCR Module SWI Network affecting NoPCR Module Firewall Network affecting No PCR Module SWITCH, IPG Network affecting NoPCR Module QOS Network affecting No PCR 03047 Module Core Network affecting NoPCR 02396 Module Dhcp Network affecting No Features in SB251-01PCR 02568 Module Core Network affecting No PCR Module Ospf Network affecting No AvailabilityPCR Module SWI Classifier Network affecting No PCR Module IPG, SWI Network affecting No

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.
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