Linksys SLM224G4S manual Packet a unit of data sent over a network, Mail protocol on the Internet

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Appendix C

Glossary

MAC (Media Access Control) Address  The unique address that a manufacturer assigns to each networking device.

Mask  A filter that includes or excludes certain values, for example parts of an IP address.

Mbps (MegaBits Per Second)  One million bits per second; a unit of measurement for data transmission.

MD5 (Message Digest 5)  An algorithm that produces a 128-bit hash. MD5 is a variation of MD4, and increases MD4 security. MD5 verifies the integrity of the communication and authenticates the origin of the communication.

MDI (Media Dependent Interface)  A cable used for end stations.

MDIX (Media Dependent Interface with Crossover)  A cable used for hubs and switches.

MIB (Management Information Base)  MIBs contain information describing specific aspects of network components.

Multicast  Transmits copies of a single packet to multiple ports.

Network  A series of computers or devices connected for the purpose of data sharing, storage, and/or transmission between users.

NMS (Network Management System)  An interface that provides a method of managing a system.

OID (Object Identifier)  Used by SNMP to identify managed objects. In the SNMP Manager/Agent network management paradigm, each managed object must have an OID to identify it.

Packet  A unit of data sent over a network.

Ping (Packet INternet Groper)  An Internet utility used to determine whether a particular IP address is online.

Policing  Determines if traffic levels are within a specified profile. Policing manages the maximum traffic rate used to send or receive packets on an interface.

Port  The connection point on a computer or networking device used for plugging in cables or adapters.

Port Mirroring  Monitors and mirrors network traffic by forwarding copies of incoming and outgoing packets from one port to a monitoring port.

Power over Ethernet (PoE)  A technology enabling an Ethernet network cable to deliver both data and power.

QoS (Quality of Service)  Provides policies that contain sets of filters (rules). QoS allows network managers to decide how and what network traffic is forwarded according to priorities, application types, and source and destination addresses.

RADIUS (Remote Authentication Dial-In User Service)   A protocol that uses an authentication server to control network access.

RJ-45 (Registered Jack-45)  An Ethernet connector that holds up to eight wires.

RMON (Remote Monitoring)  Provides network information to be collected from a single workstation.

Router  A networking device that connects multiple networks together.

RSTP (Rapid Spanning Tree Protocol)  Detects and uses network topologies that allow a faster convergence of the spanning tree, without creating forwarding loops.

Server  Any computer whose function in a network is to provide user access to files, printing, communications, and other services.

SMTP (Simple Mail Transfer Protocol)  The standard e-

mail protocol on the Internet.

SNMP (Simple Network Management Protocol)  A

widely used network monitoring and control protocol.

SSH  Secure Shell. A utility that uses strong authentication and secure communications to log in to another computer over a network.

SSL (Secure Socket Layer)  Encryption technology for the Internet used to provide secure transactions, such as the transmission of credit card numbers for e-commerce.

Static IP Address  A fixed address assigned to a computer or device that is connected to a network.

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

Subnet (Sub-network) Subnets are portions of a network that share a common address component. In TCP/IP networks, devices that share a prefix are part of the same subnet. For example, all devices with a prefix of 157.100.100.100 are part of the same subnet.

Subnet Mask  An address code that determines the size of the network.

Switch  Filters and forwards packets between LAN segments. Switches support any packet protocol type.

TACACS+ (Terminal Access Controller Access Control System Plus)  Proprietary Cisco enhancement to Terminal AccessControllerAccessControlSystem(TACACS).Provides additional support for authentication, authorization, and accounting.

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 + Icon Descriptions About This GuideAbout This Guide Online ResourcesTable of Contents Snmp Appendix B About Switch Stacking Appendix C GlossaryGigabit Ethernet Fiber Optic Cabling Appendix D Specifications Appendix G Contact InformationChapter IntroductionFront Panel Chapter Product OverviewProduct Overview Back PanelSLM248G4S Pre-Installation Considerations Chapter InstallationInstallation Placement OptionsHardware Installation Desktop PlacementRack-Mount Placement Uplinking the Switch Configuring Stacking ModeReplacing a Stacked Switch Connect port G1 on Unit 2 to port G2 on UnitConnect port G1 on Unit 3 to port G2 on Unit Using telnet Chapter Configuration Using Console InterfaceUsing the HyperTerminal Application Login screen appears. Proceed to the Login section belowSwitch Main Menu How to Use the Console InterfaceLogin System Configuration MenuManagement Settings User & Password SettingsSystem Information Security Settings IP ConfigurationNetwork Configuration File ManagementRestore System Default Settings Reboot SystemStack Configuration Port Status Port ConfigurationSystem Mode HelpSetup Summary Chapter Configuration Using Web-based UtilitySetup Device InformationDefault Gateway The IP address default 0.0.0.0 Setup ZoomSetup Network Settings DNS Server The IP address of your ISP’s server thatLocal Time Setup TimeIdentification Daylight SavingPort Management Setup Stack ManagementPort Management Port Settings Sntp ServersPort Configuration LAG Configuration Port Management Link AggregationGlobal Parameter Lacp screen contains fields for configuring Lacp LAGsPort Management Lacp Port PriorityVlan Management Create Vlan Vlan Management Port SettingsVlan Management Lacp Port TableVlan Management Port to Vlan Vlan Management Vlan to PortJoin Vlan to Port Statistics Statistics Rmon StatisticsLog Table Statistics Rmon HistoryRmon History Rmon History TableStatistics Rmon Alarms Add AlarmStatistics Port Utilization Statistics Rmon EventsStatistics Interface Statistics Interface Security 802.1x SettingsSecurity Ethernet-likeSetting Timer Security Port SecuritySecurity Management Access List Web IP FilteringSecurity Storm Control Security RadiusBroadcast Only Counts only Broadcast traffic CoS Default QoS CoS SettingsCoS Settings CoS Settings screen is used to enable or disable CoSQoS Queue Settings QoS Dscp SettingsQoS Bandwidth QoS Basic Mode Spanning TreeSpanning Tree STP Status Bridge Settings Spanning Tree STP Port SettingsGlobal Setting Spanning Tree Global STPMulticast Igmp Snooping Vlan Igmp SettingsMulticast Igmp GlobalMulticast Bridge Multicast Multicast Bridge Multicast Forward AllSnmp Global Parameters Snmp ViewsSnmp Group Profile Snmp Group MembershipUser Name Provides a user-defined local user list Snmp Communities Base Table Snmp Notification FilterSnmp Notification Recipient Advanced TableUser Authentication AdminAdmin User Authentication Local User EditSecure The entry is defined for locked ports Admin Static AddressAdmin Dynamic Address Clear Table If selected, this clears the MAC Address tableAdmin Port Mirroring Admin Cable TestQuery Admin Save Configuration Admin Firmware Upgrade Admin RebootAdmin Factory Default Admin Logging Admin Server LogsAdmin Memory Logs Admin Flash Logs LogoutGigabit Ethernet Appendix aAppendix a About Gigabit Ethernet Fiber Optic Cabling Fiber Optic CablingAppendix B Appendix B About Switch StackingAbout Switch Stacking Stack Building Quick StartUnit IDs Advanced StackingStack Resiliency Unit ID AllocationStack Units Startup Process Master DiscoveryMaster Election Stacking Examples Unit and Port ConfigurationUser Controls 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 Appendix C GlossaryGlossary Glossary Packet a unit of data sent over a network Mail protocol on the InternetAppendix C Appendix D Specifications SpecificationsAppendix D Supports up to 9K byte frames DimensionsHOL Blocking Head of line blocking prevention 802.3 10BASE-T EthernetObtaining Warranty Service Warranty InformationLimited Warranty 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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