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Introduction

Business Series Smart Gigabit Ethernet Switch

Chapter 

Chapter :  

Introduction

Thank you for choosing the Linksys Business Series Smart 

Gigabit Ethernet Switch. 
The  new  Linksys  Business  Series  Smart  Gigabit  Ethernet 

Switches  are  cost-effective  switching  solutions  ideal 

for  small  businesses,  the  network  edge,  or  workgroups 

within  larger  organizations.  These  easy-to-install,  high-

speed switches offer many of the same Quality of Service 

and Security features found in more expensive full Layer 

2  managed  switches  but  without  their  complexity.  The 

Smart Switches offer the following interfaces:

The SLM2024 and SLM2048 offer twenty four (24) or 

forty eight (48) 10/100/1000 Gigabit copper ports, with 

two (2) shared copper or optical (SFP) uplink interfaces 

for connecting the switch to the core network.
The  SLM224G,  SLM224P,    SLM248G,  and  SLM248P 

offer twenty four (24) or forty eight (48) 10/100 copper 

ports,  with  two  (2)  shared  Gigabit  copper  or  optical 

(SFP) uplink interfaces for connecting the switch to the 

core network.

The Smart Switch’s simplified user interface is an intuitive 

management  tool  enabling  you  to  quickly  utilize  the 

comprehensive  feature-set  of  the  switch,  resulting  in  a 

better optimized network.
For  Wireless  or  VoIP  deployments,  the  SLM224P  and 

SLM248P support the IEEE802.3af standard for Power over 

Ethernet  (PoE).  This  eliminates  the  need  for  additional 

power  cables  and  the  need  for  a  nearby  power  outlet, 

thereby  making  installation  simple  and  inexpensive, 

allowing  networking  devices  like  cameras  and  Wireless 

Access Points to be positioned in optimal locations like in 

ceilings and walls -- even outdoors.
The  Smart  Switch  includes  numerous  QoS  features  to 

ensure  that  traffic  is  prioritized  properly  to  deliver  the 

best  possible  user  experience  for  real  time  applications 

like  voice  and  video  or  bandwidth  intensive  graphic/

video file uploads or downloads. With its IGMP Snooping 

feature,  the  Smart  Switch  limits  IP  multicast  traffic  (real 

time  presentations,  videoconferences,  on-line  gaming) 

to only the ports that have requested it enabling the rest 

of  the  network  to  operate  at  peak  efficiency.  Additional 

QoS  capabilities  like  IEEE  802.1p  Priority Tagging,  DSCP 

(Differentiated  Services  Code  Point),  and  4  hardware 

queues also maintain quality for real-time applications like 

voice and video. Network traffic can be optimized with the 

switch’s 802.1Q VLAN (Virtual LAN) support which enables 

you  to  quickly  segregate  network  traffic  by  department 

or workgroup. VLANs also provide an additional layer of 

security by keeping sensitive data separated from other 

workgroups on the network..
Network  Security  is  an  absolute  requirement  for  any 

business  and  preventing  unauthorized  access  to  the 

company  network  is  business-critical. The  Smart  Switch   

secures the network through 802.1X port authentication 

which  prompts  end-users  to  provide  their  username 

and  password  before  they  are  permitted  to  pass  data. 

User  access  can  also  be  controlled  through  the  Smart 

Switch’s  MAC-Based  Filtering  capability  which  allows 

network access only to those devices or workstations that 

have been authorized as identified by their MAC (Media 

Access Control) address. The Many-to-One or One-to-One 

Port  Mirroring  feature  of  the  Smart  Switch  enables  you 

to  monitor  the  type  of  traffic  being  transmitted  on  the 

network. 
The Smart Switch includes features for quickly expanding 

and  growing  your  network.  To  substantially  increase 

network  throughput  speeds,  especially  useful  for 

companies  whose  employees  are  routinely  backing  up 

their hard drives to a company server or storage platform, 

the Smart Switch  supports Link Aggregation which allows 

multiple high-bandwidth trunks between switches to be 

set up. Link Aggregation also provides a level of availability 

and redundancy as traffic will continue to flow even if one 

of the network links breaks. The Smart Switch’s Spanning 

Tree  Protocol  support  (STP)  and  Storm  Control  features 

help to control planned or inadvertent cable loops when 

switches are connected to one another. These loops can 

cause broadcast or multicast storms in the network and 

severely limit its performance. With these features, you can 

confidently build a mesh of switches and quickly expand 

your network to support your growing workforce.

Summary of Contents for SLM2024

Page 1: ...USER GUIDE BUSINESS SERIES Business Series Smart Gigabit Ethernet Switch Model SLM2048 SLM2024 SLM248G SLM248P SLM224G SLM224P ...

Page 2: ...e address or e mail address Online Resources Website addresses in this document are listed without http in front of the address because most current web browsers do not require it If you use an older web browser you may have to add http in front of the web address Resource Website Linksys www linksys com Linksys International www linksys com international Glossary www linksys com glossary Network ...

Page 3: ...anel 7 Back Panel 7 Chapter 3 Installation 8 Overview 8 Pre Installation Considerations 8 Fast Ethernet Considerations 8 Full Duplex Considerations 8 1000BASE T Cable Requirements 8 Positioning the Switch 8 Placement Options 8 Desktop Placement 9 Rack Mount Placement 9 Hardware Installation 9 Uplinking the Switch 10 Chapter 4 Configuration Using theWeb based Utility 11 Setup 11 Setup Summary 11 Se...

Page 4: ...oS Settings 25 QoS Queue Settings 26 QoS DSCP Settings 26 QoS Basic Mode 26 Spanning Tree 27 Spanning Tree STP Status 27 Spanning Tree Global STP 27 Spanning Tree STP Port Settings 28 Multicast 29 Multicast IGMP Snooping 29 Multicast Bridge Multicast 29 Multicast Bridge Multicast Forward All 30 Admin 31 Admin User Authentication 31 Admin Static Address 32 Admin Dynamic Address 32 Admin Port Mirror...

Page 5: ...2 SLM224G SLM248G SLM224P SLM248P 43 Appendix D Warranty Information 45 Appendix E Regulatory Information 46 FCC Statement 46 Safety Notices 46 Industry Canada Statement 46 Avis d Industrie Canada 46 User Information for Consumer Products Covered by EU Directive 2002 96 EC on Waste Electric and Electronic Equipment WEEE 47 Appendix E Contact Information 51 ...

Page 6: ...the ports that have requested it enabling the rest of the network to operate at peak efficiency Additional QoS capabilities like IEEE 802 1p Priority Tagging DSCP Differentiated Services Code Point and 4 hardware queues also maintain quality for real time applications like voice and video Network traffic can be optimized with the switch s 802 1QVLAN Virtual LAN support which enables you to quickly...

Page 7: ...nd full duplex modes Auto sensing technology enables each port to automatically detect the speed of the device connected to it 10 Mbps 100 Mbps or 1000 Mbps and adjust its speed and duplex accordingly miniGBIC 1 2 The miniGBIC gigabit interface converter port is a connection point for a miniGBIC expansion module so the Switch can be uplinked via fiber to another switch The MiniGBIC port provides a...

Page 8: ... modes Auto sensing technology enables each port to automatically detect the speed of the device connected to it 10 Mbps 100 Mbps or 1000 Mbps and adjust its speed and duplex accordingly miniGBIC 1 2 The miniGBIC gigabit interface converter port is a connection point for a miniGBIC expansion module so the Switch can be uplinked via fiber to another switch The MiniGBIC port provides a link to a hig...

Page 9: ...es each port to automatically detect the speed of the device connected to it 10 Mbps or 100 Mbps and adjust its speed and duplex accordingly G1 G2 The Switch is equipped with 2 auto sensing Gigabit Ethernet network ports which use RJ 45 connectors The Gigabit Ethernet ports support network speeds of 10 Mbps 100 Mbps or 1000 Mbps They can operate in half and full duplex modes Auto sensing technolog...

Page 10: ...r100 Mbps They can operate in half and full duplex modes Auto sensing technology enables each port to automatically detect the speed of the device connected to it 10 Mbps or 100 Mbps and adjust its speed and duplex accordingly G1 G2 The Switch is equipped with 2 auto sensing Gigabit Ethernet network ports which use RJ 45 connectors The Gigabit Ethernet ports support network speeds of 10 Mbps 100 M...

Page 11: ...es each port to automatically detect the speed of the device connected to it 10 Mbps or 100 Mbps and adjust its speed and duplex accordingly G1 G2 The Switch is equipped with 2 auto sensing Gigabit Ethernet network ports which use RJ 45 connectors The Gigabit Ethernet ports support network speeds of 10 Mbps 100 Mbps or 1000 Mbps They can operate in half and full duplex modes Auto sensing technolog...

Page 12: ... Mbps They can operate in half and full duplex modes Auto sensing technology enables each port to automatically detect the speed of the device connected to it 10 Mbps or 100 Mbps and adjust its speed and duplex accordingly G1 G2 The Switch is equipped with 2 auto sensing Gigabit Ethernet network ports which use RJ 45 connectors The Gigabit Ethernet ports support network speeds of 10 Mbps 100 Mbps ...

Page 13: ...ll duplex mode the maximum cable length using Category 5 cable is 328 feet 100 meters 1000BASE T Cable Requirements All Category 5 UTP cables that are used for 100BASE TX connections should also work for 1000BASE T providing that all four wire pairs are connected However it is recommended that for all critical connections or any new cable installations Category 5e enhanced Category 5 or Category 6...

Page 14: ...ircuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring Appropriate consideration of equipment nameplate ratings should be used when addressing this concern Reliable Earthing Reliable earthing of rack mounted equipment should be maintained Particu...

Page 15: ... damage the Switch Power on the devices connected to the Switch Each active port s corresponding LED will light up on the Switch Uplinking the Switch To uplink the Switch using a 1000 Mbps Ethernet port connect one end of a Cat 5e or better Ethernet network cable to one of the Gigabit ports and then connect the other end of the cable into the peripheral device s uplink port MDI MDIX will automatic...

Page 16: ...g the password refer to section Admin User Authentication Login Screen Each time you log in the web based utility first displays the Setup tab s Summary screen To access another screen you first select the appropriate category from among the 10 tabs that appear at the top of the screen Setup Port Management VLAN Management Statistics Security QoS Spanning Tree Multicast Admin and Logout Then selec...

Page 17: ...ture Jumbo Frame SLM2024 and SLM2048 only This setting enables or disables Jumbo frames on the Switch A maximum packet size of 9 KB is supported Jumbo frames allow data to be transmitted using fewer frames providing lower overhead quicker processing time and fewer interruptions Select either Enable to enable the Jumbo frames feature or Disable default to disable it Model Name Displays the model na...

Page 18: ...f the default gateway The default value is 0 0 0 0 DNS Server If you are using a static IP address enter the IP address of the DNS server A second DNS address can be specified in the additional text field provided Click Save Settings to save your changes Click Cancel Changes to cancel your changes Setup Time The Time screen allows you to configure the time settings for the Switch Setup Time LocalT...

Page 19: ... administrative status Link Status The port s operational status Speed The port s configured rate in Mbps Duplex The port s current duplex mode MDI MDIX The port s MDI MDIX type Flow Control The type of flow control currently in use Type The port type LAG The LAG to which the port belongs if the port is a LAG member Port Configuration The Port Configuration screen lets you configure a port You can...

Page 20: ...d duplex mode settings that the neighbor port the port to which the selected port is connected is advertising If the port has no neighbor port this field displays Unknown Back Pressure Select Enable or Disable default to enable or disable Back Pressure mode on the port Current Back Pressure Read only The current Back Pressure mode on the port Flow Control Select Enable or Disable to manually enabl...

Page 21: ...o advertise its transmission rate duplex mode and flow control settings to other LAGs Current Auto Negotiation Read only The LAG s current Auto Negotiation status Admin Advertisement Select the capabilities speeds and duplex modes that the LAG will advertise The available speeds are determined by the LAG port type The duplex mode must be full duplex The following capabilities are supported Max Cap...

Page 22: ...r Long default Admin Key Read only A channel will only be formed between ports with the same admin key This only applies to ports located on the same switch When you are finished entering the settings above click Update to apply the settings LACP PortTable This section provides a read only display of the current LACP settings After you are finished setting the LACP parameters click Save Settings t...

Page 23: ...rt Settings The Port Settings screen allows you to configure the ports in a VLAN VLAN Management Port Settings You can configure VLAN behavior for specific ports including the accepted frame type VLAN identifier PVID and ingress filtering Port The number of the port Acceptable FrameType This specifies the type of frames that the port will accept If All default is selected the port will accept all ...

Page 24: ...the LAG to which the port belongs can be configured to belong to a VLAN JoinVLAN to Port The Join VLAN to Port screen appears when you click the JoinVLAN button for a port in the VLANtoPort screen You use this screen to configure the port s VLAN membership VLAN Management VLAN to Port Join VLAN to Port Select VLAN This contains two fields The field on the left side of the screen lists the IDs of a...

Page 25: ...mber of Broadcast packets received on the selected interface Packets with Errors Displays the number of error packets received from the selected interface Transmit Statistics Statistics on transmitted packets Total Bytes Octets Displays the number of octets transmitted from the selected interface Unicast Packets Displays the number of Unicast packets transmitted from the selected interface Multica...

Page 26: ...s section of the screen If you click More Details the settings described in the Setting Timer section are added to the table Click Save Settings to apply the changes or Cancel Changes to cancel the changes SettingTimer The Setting Timer screen appears when you click Setting Timer on the 802 1x Settings screen You use the Setting Timer screen to configure a port s 802 1x functionality Security 802 ...

Page 27: ...ed interface not locked Learning Mode Defines the locked port type This field is enabled only if Lock Interface is not selected The possible values are Classic Lock Locks the port using the classic lock mechanism The port is immediately locked regardless of how many addresses have already been learned Limited Dynamic Lock Locks the port by deleting the current dynamic MAC addresses associated with...

Page 28: ... multicast storm control Security Storm Control StormControlenableslimitingtheamountofMulticastand Broadcast frames accepted and forwarded by the Switch A Broadcast Storm results when an excessive amount of broadcast messages is simultaneously transmitted across a network by a single port Forwarded message responses are heaped onto the network straining network resources or causing the network to ...

Page 29: ... before a failure occurs The possible values are 1 to 10 The default is 3 Timeout for Reply Defines the amount of the time in seconds the device waits for an answer from the RADIUS server before retrying the query or switching to the next server The possible values are 1 to 30 The default is 3 Dead Time Defines the amount of time minutes that a RADIUS server is bypassed for service requests The ra...

Page 30: ...ents Traffic Classification Classifies each incoming packet as belonging to a given traffic class based on the packet contents and or the context Assignment to Hardware Queues Assigns incoming packets to forwarding queues Packets are sent to a particular queue for handling as a function of the traffic class to which they belong as defined by the classification mechanism Traffic Class Handling Attr...

Page 31: ...e Point DSCP values to specific queues QoS DSCP Settings DSCP Indicates the DSCP value in the incoming packet Select a DSCP value from the drop down menu to map that value to the associated queue You can select the DSCP value for the High Medium and Normal priority queues The DSCP values for the Low priority queue are selected automatically based on the other DSCP values Queue The queue 1 4 to whi...

Page 32: ...efault is 20 seconds The range is 6 to 40 seconds Root Hello Time sec The device Hello Time The Hello Timeindicatestheamountoftimeinsecondsarootbridge 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 learni...

Page 33: ... in the Forwarding state when the port link is up Fast Link optimizes the STP protocol convergence STP convergence can take 30 60 seconds in large networks The possible values are Enable Auto and Disable The default is Disable Port State Displays the current STP state of a port If enabled the port state determines what forwarding action is taken on traffic Possible port states are Disabled STP is ...

Page 34: ...to Learn is enabled the device automatically learns where other Multicast groups are located The default is enabled option is selected HostTimeout Indicates the amount of time host waits to receive a message before timing out The default time is 260 seconds MRouter Timeout Indicates the amount of the time the Multicast router waits to receive a message before it times out The default value is 300 ...

Page 35: ...ancel the changes Multicast Bridge Multicast Forward All The Bridge Multicast Forward All screen contains fields for attaching ports or LAGs to a device that is attached to a neighboring Multicast router or switch Multicast Bridge Multicast Forward All Once IGMP Snooping is enabled Multicast packets are forwarded to the appropriate port or VLAN The Bridge Multicast Forward All screen contains the ...

Page 36: ...u are performing When you create a new user name it becomes Add to List when you edit an existing password or user name it becomes Update For detailed information on its use refer to the Local Users Table section below Local UsersTable The Local Users Table at the bottom of the screen lists all existing user names for security purposes passwords are not displayed You use this table to edit or dele...

Page 37: ...isted above click Add to List The static address will then appear in the list of static addresses To delete a static MAC address from the list select the entry in the list then click Remove Admin Dynamic Address Admin Dynamic Address The Dynamic Address Table contains MAC addresses learned by monitoring the source address on inbound traffic When the destination address of inbound traffic is found ...

Page 38: ...iguration screen allows you to upload Switch configuration files to a TFTP server or to download saved Switch configuration files from a TFTP server or from your computer via the HTTP interface Via TFTP Select this to upload to or download from a TFTP server When you select this option the following fields are displayed UPGRADE Select this option to restore the Switch configuration from the file l...

Page 39: ...re file will be saved File Name Enter the name of the file Via HTTP Select this to download an upgrade file using the HTTP interface When you select this option the following field is displayed Source File Enter the name and path of the file or click Browse to locate the upgrade file Click Save Settings to begin the download or upload Admin Reboot The Reboot screen is used to reset the Switch The ...

Page 40: ...ical state Error A system error has occurred Warning A system warning has occurred Notice The system is functioning properly but system notice has occurred Informational Provides device information Debug Provides detailed information about the log If a Debug error occurs contact Customer Tech Support If you enable Logging use the checkboxes to set the level of event messages to be logged to RAM Me...

Page 41: ...abit Ethernet Switch Logout The Logout tab is used to terminate the login session When you select the Logout tab the following dialog box asks you to verify if you want to log out Logout Verification If you select Yes a confirmation screen appears Confirmation of Successful Logout ...

Page 42: ... the signaling hardware currently on the market can handle no more than a few gigabits of data per second Fiber cables come with two main connector types The most commonly used fiber optic cable is multi mode fiber cable MMF with a 62 5 micron fiber optic core Single mode fiber cabling is somewhat more efficient than multi mode but far more expensive due to its smaller optic core that helps retain...

Page 43: ...raffic is assigned to the lowest priority queue and packet delivery is not guaranteed Bit A binary digit Boot To start a device and cause it to start executing instructions Browser An application program that provides a way to look at and interact with all the information on the World Wide Web Bridge A device that connect two networks Bridges are hardwarespecific howevertheyareprotocolindependent ...

Page 44: ...gher speed device refraining from sending packets FTP File Transfer Protocol A protocol used to transfer files over a TCP IP network Full Duplex The ability of a networking device to receive and transmit data simultaneously GARP General Attributes Registration Protocol Registers client stations into a multicast domain Gateway A device that interconnects networks with different incompatible communi...

Page 45: ...rk 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 c...

Page 46: ...e Transmission Rate UDP User Data Protocol Communication protocol that transmits packets but does not guarantee their delivery Upgrade To replace existing software or firmware with a newer version Upload To transmit a file over a network URL Uniform Resource Locator The address of a file located on the Internet VLAN Virtual Local Area Networks Logical subgroups that constitute a Local Area Network...

Page 47: ...k analyzer Other Management DHCP BootP Client System Log Configuration upload and backup via HTTP or TFTP Security 802 1X RADIUS Authentication MD5 Encryption Port Security MAC based Filtering Management Access Control Availability Link Aggregation Link Aggregation using IEEE 802 3ad LACP Up to 4 groups with up to 8 ports per group Storm Control Broadcast and Multicast Spanning Tree IEEE 802 1D Sp...

Page 48: ...VLAN Port based and 802 1Q Tag based VLANs Management VLAN HOL Blocking Head of line blocking prevention Management Web User Interface Built in Web UI for easy browser based configuration HTTP Firmware Upgrade Web Browser upgrade HTTP and TFTP upgrade Port Mirroring Traffic on a port can be mirrored to another port for analysis with a network analyzer Other Management DHCP BootP Client System Log ...

Page 49: ...32 x 1 70 x 13 58 440 x 43 x 345 mm Unit Weight SLM224G 6 39 lb 2 9 kg SLM248G 6 83 lb 3 1 kg SLM224P 7 28 lb 3 3 kg SLM248P 10 14 lb 4 6 kg Power Internal Power 100 240V Certification FCC Part15 Class A CE Class A UL cUL CE mark CB Operating Temp 32 to 122ºF 0 to 50ºC Storage Temp 32 to 158ºF 0 to 70ºC Operating Humidity 10 to 90 Noncondensing Storage Humidity 10 to 90 Noncondensing ...

Page 50: ...MENT AREDISCLAIMED Somejurisdictions do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to You This warranty gives You specific legal rights and You may also have other rights which vary by jurisdiction This warranty does not apply if the Product a has been altered except by Linksys b has not been installed operated repaired or maintained in accord...

Page 51: ...fications not expressly approved by the party responsible for compliance could void your authority to operate the equipment Safety Notices Caution To reduce the risk of fire use only No 26 AWG or larger telecommunication line cord Do not use this product near water for example in a wet basement or near a swimming pool Avoid using this product during an electrical storm There may be a remote risk o...

Page 52: ...opská směrnice 2002 96 ES zakazuje aby zařízení označené tímto symbolem na produktu anebo na obalu bylo likvidováno s netříděným komunálním odpadem Tento symbol udává že daný produkt musí být likvidován odděleně od běžného komunálního odpadu Odpovídáte za likvidaci tohoto produktu a dalších elektrických a elektronických zařízení prostřednictvím určených sběrných míst stanovených vládou nebo místní...

Page 53: ...από το οποίο αγοράσατε το προϊόν Français French Informations environnementales pour les clients de l Union européenne La directive européenne 2002 96 CE exige que l équipement sur lequel est apposé ce symbole sur le produit et ou son emballage ne soit pas jeté avec les autres ordures ménagères Ce symbole indique que le produit doit être éliminé dans un circuit distinct de celui pour les déchets d...

Page 54: ...lavult berendezéseinek felszámolásához további részletes információra van szüksége kérjük lépjen kapcsolatba a helyi hatóságokkal a hulladékfeldolgozási szolgálattal vagy azzal üzlettel ahol a terméket vásárolta Nederlands Dutch Milieu informatie voor klanten in de Europese Unie DeEuropeseRichtlijn2002 96 ECschrijftvoordatapparatuurdie is voorzien van dit symbool op het product of de verpakking ni...

Page 55: ...ácia pomôže zabrániť prípadným negatívnym dopadom na životné prostredie a zdravie ľudí Ak máte záujem o podrobnejšie informácie o likvidácii starého zariadenia obráťte sa prosím na miestne orgány organizácie zaoberajúce sa likvidáciou odpadov alebo obchod v ktorom ste si produkt zakúpili Slovenčina Slovene Okoljske informacije za stranke v Evropski uniji Evropska direktiva 2002 96 EC prepoveduje o...

Page 56: ...ntact Information Website http www linksys com FTP Site ftp linksys com Advice Line 800 546 5797 LINKSYS Support 800 326 7114 RMA Return Merchandise Authorization 949 823 3000 Fax 949 823 3002 NOTE Details on warranty and RMA issues can be found in the Warranty and Regulatory Information section of this Guide 7100910B AI ...

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