Linksys SLM224G4S manual QoS Basic Mode, Spanning Tree STP Status

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Chapter 5

Configuration Using the Web-based Utility

Committed Information Rate (CIR)  Defines CIR as the queue shaping type. The allowed values are 64 to 62500 Kbps for the 10/100 ports and 64 to 1000000 Kbps for the Gigabit ports.

Committed Burst Size (CBS)  Defines CBS as the queue shaping type. The possible field value is 4096 to 15,769,020 bits. Commited Burst Size cannot be configured on FE ports.

Click Add to List to add the Bandwidth configuration to the Bandwidth Table at the bottom of the screen.:

QoS > Basic Mode

QoS > Basic Mode

The Basic Mode screen contains the following fields:

Trust Mode  Displays the trust mode. If a packet’s CoS tag and DSCP tag are mapped to different queues, the Trust Mode determines the queue to which the packet is assigned. Possible values are:

•CoS  Sets trust mode to CoS on the device. The CoS mapping determines the packet queue

•DSCP  Sets trust mode to DSCP on the device. The DSCP mapping determines the packet queue.

Click Save Settings to save the changes, or Cancel Changes to cancel the changes.

Spanning Tree

Spanning Tree Protocol (STP) provides tree topography for any arrangement of bridges. STP also provides one path between end stations on a network, eliminating loops.

Loops occur when alternate routes exist between hosts. Loops in an extended network can cause bridges to forward traffic indefinitely, resulting in increased traffic and reducing network efficiency.

The Switch supports the Classic STP version of STP, which provides a single path between end stations, avoiding and eliminating loops.

Spanning Tree > STP Status

The STP Status screen displays the STP status on the Switch. This information is read-only and cannot be modified.

Spanning Tree > STP Status

Spanning Tree State  Indicates whether STP is enabled on the device.

Spanning Tree Mode  The STP mode by which STP is enabled on the device.

Bridge ID  The Bridge priority and MAC address.

Designated Root  Identifies the bridge priority and MAC address of the root bridge.

Root Port  The port number that offers the lowest cost path from this bridge to the Root Bridge. It is significant when the Bridge is not the Root. The default is 0.

Root Path Cost  The cost of the path from this bridge to the root.

Root Maximum Age (sec)  The device Maximum Age Time, which indicates the amount of time in seconds a bridge waits before sending configuration messages. The default is 20 seconds. The range is 6 to 40 seconds.

Root Hello Time (sec)  The device Hello Time. The Hello Time indicates the amount of time in seconds a root bridge waits between configuration messages. The default is 2 seconds. The range is 1 to 10 seconds.

Root Forward delay (sec)  The device forward delay time. The Forward Delay Time indicates the amount of time in seconds a bridge remains in a listening and learning state before forwarding packets. The default is 15 seconds. The range is 4 to 30 seconds.

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 D Specifications Appendix G Contact InformationChapter IntroductionChapter Product Overview Product OverviewFront Panel Back PanelSLM248G4S Chapter Installation InstallationPre-Installation Considerations Placement OptionsDesktop Placement Hardware InstallationRack-Mount Placement Uplinking the Switch Configuring Stacking ModeConnect port G1 on Unit 2 to port G2 on Unit Replacing a Stacked SwitchConnect port G1 on Unit 3 to port G2 on Unit Chapter Configuration Using Console Interface Using the HyperTerminal ApplicationUsing telnet Login screen appears. Proceed to the Login section belowHow to Use the Console Interface LoginSwitch Main Menu System Configuration MenuUser & Password Settings Management SettingsSystem Information Security Settings IP ConfigurationNetwork Configuration File ManagementReboot System Restore System Default SettingsStack Configuration Port Configuration System ModePort Status HelpChapter Configuration Using Web-based Utility SetupSetup Summary Device InformationSetup Zoom Setup Network SettingsDefault Gateway The IP address default 0.0.0.0 DNS Server The IP address of your ISP’s server thatSetup Time IdentificationLocal Time Daylight SavingSetup Stack Management Port Management Port SettingsPort Management Sntp ServersPort Configuration LAG Configuration Port Management Link AggregationLacp screen contains fields for configuring Lacp LAGs Port Management LacpGlobal Parameter Port PriorityVlan Management Port Settings Vlan ManagementVlan Management Create Vlan Lacp Port TableVlan Management Vlan to Port Vlan Management Port to VlanJoin Vlan to Port Statistics Statistics Rmon StatisticsStatistics Rmon History Rmon HistoryLog Table Rmon History TableStatistics Rmon Alarms Add AlarmStatistics Rmon Events Statistics Port UtilizationStatistics Interface Statistics Security 802.1x Settings SecurityInterface Ethernet-likeSetting Timer Security Port SecuritySecurity Management Access List Web IP FilteringSecurity Radius Security Storm ControlBroadcast Only Counts only Broadcast traffic QoS CoS Settings 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 Spanning Tree STP Port Settings Global SettingBridge Settings Spanning Tree Global STPVlan Igmp Settings MulticastMulticast Igmp Snooping Igmp GlobalMulticast Bridge Multicast Multicast Bridge Multicast Forward AllSnmp Global Parameters Snmp ViewsSnmp Group Membership Snmp Group ProfileUser Name Provides a user-defined local user list Snmp Communities Snmp Notification Filter Snmp Notification RecipientBase Table Advanced TableAdmin Admin User AuthenticationUser Authentication Local User EditAdmin Static Address Admin Dynamic 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 Admin Flash Logs LogoutAppendix a Appendix a About Gigabit Ethernet Fiber Optic CablingGigabit Ethernet Fiber Optic CablingAppendix B About Switch Stacking About Switch StackingAppendix B Stack Building Quick StartAdvanced Stacking Stack ResiliencyUnit IDs Unit ID AllocationMaster Discovery Stack Units Startup ProcessMaster Election Unit and Port Configuration User ControlsStacking Examples Replacing a Failed Stack Member in a Running StackStack Master Failure and Replacement Subgroup Contains Both Master Unit and Backup Master Unit Splitting a StackMerging Two Stacks Both Stacks Kept Running During InsertionStacking Cable Failure Inserting Too Many UnitsAppendix C Glossary Appendix CGlossary Glossary Packet a unit of data sent over a network Mail protocol on the InternetAppendix C Specifications Appendix D SpecificationsAppendix D Dimensions HOL Blocking Head of line blocking preventionSupports up to 9K byte frames 802.3 10BASE-T EthernetWarranty Information Limited WarrantyObtaining Warranty Service Appendix EWarranty Information Technical SupportAppendix F Regulatory InformationRegulatory Information Appendix F Norsk Norwegian Miljøinformasjon for kunder i EU Appendix F Appendix G Contact Information

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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