Linksys SLM224G4S manual Replacing a Stacked Switch, Connect port G1 on Unit 2 to port G2 on Unit

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Chapter 3

Installation

10.Connect the cable’s other end to port G2 on Unit 6.

11.Connect one end of a Category 5e Ethernet network cable to port G1 on Unit 6.

12.Connect the cable’s other end to port G2 on Unit 1.

For a stack with less than 6 switches, the steps are similar except that port G1 of the last switch in the stack must be connected back to port G2 of the first switch in the stack.

The following is an example of setting up a stacked configuration using three SLM248G4S switches.

1. Connect port G1 on Unit 1 to port G2 on Unit 2.

Connect Unit 1 to Unit 2

2. Connect port G1 on Unit 2 to port G2 on Unit 3.

Connect Unit 2 to Unit 3

3. Connect port G1 on Unit 3 to port G2 on Unit 1.

Connect Unit 3 to Unit 1

For detailed information on switch stacking, refer to “Appendix B: About Switch Stacking.”

For more information on stack configuration using the Console Interface, refer to “Stack Configuration” and “System Mode” in “Chapter 4: Configuration Using the Console Interface” .

For more information on stack configuration using the Web-based Utility, refer to “Setup > Stack Management” in “Chapter 5: Configuration Using the Web-based Utility”.

Reassigning a Slave Unit as the Master Unit

You can reassign a slave unit so that it becomes the master unit. To do this, you swap their unit numbers. For example, to make slave unit 5 be the master, you change the master’s unit number from 1 to 5 and the slave’s unit number from 5 to 1. To change the unit numbers, you can use either the Web-based utility or the console interface.

The following describes the procedure for changing a slave unit into the master unit. In this example, unit 5 is made the master unit.

1.Swap the unit numbers. That is, change the unit number of the current master from 1 to 5, and change the unit number of slave unit 5 from 5 to 1. (The order in which these are performed is not significant.)

2.Power off the new unit 5 (the former master unit).

3.Power off the new master unit 1 (the former slave unit 5) briefly, then power it on again.

4.Power up the new unit 5.

NOTE: If unit 2 (the backup master) is made the master unit, steps 2 through 4 can be skipped.

Replacing a Stacked Switch

To replace one switch in a stack with another switch without having to reboot or power down the stack:

1.Run the Web-based utility.

2.Go to the Setup > Stack Configuration screen.

3.Make sure that the Stacking Ports After Reset setting matches the type of stacking ports (Copper Ports or Combo Ports) that are used to connect the switches.

4.Verify that the Unit No. After Reset settings specify the correct unit number for the switch being replaced.

5.Click Save Settings to save the stack settings.

6.Disconnect the switch being replaced, then connect the new switch using the same stacking ports (copper or combo) as before.

The stack should continue to operate as before.

24/48-Port 10/100 + 4-Port Gigabit Resilient Clustering Smart Switch with 2 Combo SFPs



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Contents Port or 48-Port 10/100 + About This Guide About This GuideIcon Descriptions Online ResourcesTable of Contents Snmp Appendix C Glossary Appendix B About Switch StackingGigabit Ethernet Fiber Optic Cabling Appendix G Contact Information Appendix D SpecificationsIntroduction ChapterProduct Overview Chapter Product OverviewFront Panel Back PanelSLM248G4S Installation Chapter InstallationPre-Installation Considerations Placement OptionsDesktop Placement Hardware InstallationRack-Mount Placement Configuring Stacking Mode Uplinking the SwitchConnect port G1 on Unit 2 to port G2 on Unit Replacing a Stacked SwitchConnect port G1 on Unit 3 to port G2 on Unit Using the HyperTerminal Application Chapter Configuration Using Console InterfaceUsing telnet Login screen appears. Proceed to the Login section belowLogin How to Use the Console InterfaceSwitch Main Menu System Configuration MenuUser & Password Settings Management SettingsSystem Information IP Configuration Security SettingsFile Management Network ConfigurationReboot System Restore System Default SettingsStack Configuration System Mode Port ConfigurationPort Status HelpSetup Chapter Configuration Using Web-based UtilitySetup Summary Device InformationSetup Network Settings Setup ZoomDefault Gateway The IP address default 0.0.0.0 DNS Server The IP address of your ISP’s server thatIdentification Setup TimeLocal Time Daylight SavingPort Management Port Settings Setup Stack ManagementPort Management Sntp ServersPort Configuration Port Management Link Aggregation LAG ConfigurationPort Management Lacp Lacp screen contains fields for configuring Lacp LAGsGlobal Parameter Port PriorityVlan Management Vlan Management Port SettingsVlan Management Create Vlan Lacp Port TableVlan Management Vlan to Port Vlan Management Port to VlanJoin Vlan to Port Statistics Rmon Statistics StatisticsRmon History Statistics Rmon HistoryLog Table Rmon History TableAdd Alarm Statistics Rmon AlarmsStatistics Rmon Events Statistics Port UtilizationStatistics Interface Statistics Security Security 802.1x SettingsInterface Ethernet-likeSecurity Port Security Setting TimerWeb IP Filtering Security Management Access ListSecurity Radius Security Storm ControlBroadcast Only Counts only Broadcast traffic CoS Settings QoS CoS SettingsCoS Default CoS Settings screen is used to enable or disable CoSQoS Dscp Settings QoS Queue SettingsQoS Bandwidth Spanning Tree QoS Basic ModeSpanning Tree STP Status Global Setting Spanning Tree STP Port SettingsBridge Settings Spanning Tree Global STPMulticast Vlan Igmp SettingsMulticast Igmp Snooping Igmp GlobalMulticast Bridge Multicast Forward All Multicast Bridge MulticastSnmp Views Snmp Global ParametersSnmp Group Membership Snmp Group ProfileUser Name Provides a user-defined local user list Snmp Communities Snmp Notification Recipient Snmp Notification FilterBase Table Advanced TableAdmin User Authentication AdminUser Authentication Local User EditAdmin Dynamic Address Admin Static AddressSecure The entry is defined for locked ports Clear Table If selected, this clears the MAC Address tableAdmin Cable Test Admin Port MirroringQuery Admin Save Configuration Admin Reboot Admin Firmware UpgradeAdmin Factory Default Admin Server Logs Admin LoggingAdmin Memory Logs Logout Admin Flash LogsAppendix a About Gigabit Ethernet Fiber Optic Cabling Appendix aGigabit Ethernet Fiber Optic CablingAbout Switch Stacking Appendix B About Switch StackingAppendix B Stack Building Quick StartStack Resiliency Advanced StackingUnit IDs Unit ID AllocationMaster Discovery Stack Units Startup ProcessMaster Election User Controls Unit and Port ConfigurationStacking Examples Replacing a Failed Stack Member in a Running StackStack Master Failure and Replacement Splitting a Stack Subgroup Contains Both Master Unit and Backup Master UnitBoth Stacks Kept Running During Insertion Merging Two StacksInserting Too Many Units Stacking Cable FailureAppendix C Glossary Appendix CGlossary Glossary Mail protocol on the Internet Packet a unit of data sent over a networkAppendix C Specifications Appendix D SpecificationsAppendix D HOL Blocking Head of line blocking prevention DimensionsSupports up to 9K byte frames 802.3 10BASE-T EthernetLimited Warranty Warranty InformationObtaining Warranty Service Appendix ETechnical Support Warranty InformationRegulatory Information Appendix FRegulatory Information Appendix F Norsk Norwegian Miljøinformasjon for kunder i EU Appendix F Contact Information Appendix G

SLM224G4S specifications

The Linksys SLM224G4S is a sophisticated Layer 2 managed switch designed for businesses and institutions that demand high performance, reliability, and advanced networking features. This model stands out due to its blend of robustness and manageability, making it ideal for expanding networks.

One of the primary features of the SLM224G4S is its 24 Gigabit Ethernet ports, allowing for high-speed data transfers essential for bandwidth-intensive applications. Supporting auto-negotiation, these ports can detect the capabilities of connected devices and configure themselves accordingly, ensuring optimal performance without manual intervention. With four additional shared Gigabit SFP (Small Form-factor Pluggable) ports, this switch provides flexibility in network design and enhances scalability.

The SLM224G4S supports VLAN (Virtual Local Area Network) capabilities, which can segment network traffic to improve security and performance. This is particularly useful in environments where different departments or teams require distinct network segments for operational efficiency. By implementing VLANs, organizations can enhance their network management while isolating sensitive information from potential threats.

Quality of Service (QoS) is another critical technology integrated into the SLM224G4S. It prioritizes network traffic, ensuring that critical applications receive the bandwidth they need for optimal performance. This is particularly important for VoIP and video conferencing applications, where latency and jitter can significantly impact user experience.

The switch also features advanced Layer 2 management functionalities, including SNMP (Simple Network Management Protocol), allowing IT administrators to monitor network performance and quickly troubleshoot issues. The embedded web-based management interface makes configuration straightforward, enabling quick adjustments to settings without deep networking knowledge.

Security is a paramount consideration in today’s networking landscape. The SLM224G4S provides robust security features, including port security that limits the number of MAC addresses allowed on a port, reducing the risk of unauthorized access. Moreover, it supports802.1X port-based authentication, ensuring that only authenticated devices can connect to the network.

In summary, the Linksys SLM224G4S managed switch boasts features such as 24 Gigabit Ethernet ports, VLAN support, QoS, SNMP management, and advanced security protocols. These characteristics make it an excellent choice for businesses looking to enhance their network's performance, safety, and reliability, paving the way for seamless connectivity in today’s digital age.
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