48 x Ethernet 10Base-T, Ethernet 100Base-TX, Ethernet 1000Base-T, 1 Gbps, 16.9″ x 13.8″ x 1.8″
Small businesses require cost-effective yet scalable networking solutions that can meet changing business needs. The Cisco SRW2048 48-Port Gigabit Switch brings Gigabit speeds to your users and servers, while increasing the intelligence and security of the network infrastructure. The forty-eight 10/100/1000 Mbps ports enable you to take advantage of the Gigabit Ethernet interfaces shipping in the current generation of servers, workstations, and storage devices, in addition to supporting your exi... Read more [ Report abuse or wrong photo | Share your Linksys SRW2048 photo ]
Linksys SRW2048, size: 2.9 MB
Linksys SRW2048 Product Brochure
User reviews and opinions
|Sebam||3:14pm on Sunday, October 17th, 2010|
|These switches are an excellent low cost purchase to replace the aging 10/100 switches in our IDFs.|
|ext||2:23pm on Tuesday, October 5th, 2010|
|works fine , but limited lifetime Worked well for about 11 months . Then about half the ports died Fortunately, within the warranty period|
|davec51||11:21pm on Sunday, August 29th, 2010|
|What do you expect for a $400 dollar 24-port Gig switch! If you want a managed highly reliable switch, spend $3000.|
|Gretchen_Ross||5:54pm on Tuesday, June 22nd, 2010|
|Great Price. Great Switch, as good as the ESW 540 No Pre-Standard PoE Support, so your old 7940 Cisco Phones will not work over PoE I think I will get another one of these for the new addition. For what we needed it was perfect. No setup just plug it in and off you go. This switch replaced another brand gigabit switch and provided a 2x throughput increase. Great switch with plenty of ports to accommodate even the largest networks.|
|alchemy99||5:09pm on Wednesday, May 12th, 2010|
|Solid product with quick and easy setup The Cisco SR2024T 24 port Gigabit switch is an excellent product. It was packaged well, included extra screws,... Compact design, fanless, and works very well! I use the switch to extend connection to additional ports in my office. Excellent - fanless design! I took a gamble on this (with no reviews) on name brand alone.|
|mono78||9:48am on Saturday, March 20th, 2010|
|No Comment. Much quieter then the earlier version of this model. Really fits the bill No Comment|
Comments posted on www.ps2netdrivers.net are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.
WebView Switches iii
Admin > Static Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Query. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Admin > Dynamic Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Query. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Admin > Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Admin > Port Mirroring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Admin > Cable Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Admin > Save Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Via TFTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Via HTTP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Admin > Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Admin > Reboot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Admin > Factory Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Admin > Server Logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Admin > Memory Logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Admin > Flash Logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Appendix A: About Gigabit Ethernet and Fiber Optic Cabling
Gigabit Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Fiber Optic Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Appendix B: Windows Help
TCP/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Shared Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Network Neighborhood/My Network Places. . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Appendix C: Downloading using Xmodem Appendix D: Glossary Appendix E: Specifications Appendix F: Warranty Information
Startup Menu Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Exclusions and Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Obtaining Warranty Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
miniGBIC 1 miniGBIC 2
Back Panel of the SRW2024
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 high-speed network segment or individual workstation at speeds of up to 1000Mbps. Use the Linksys MGBT1, MGBSX1, or MGBLH1 miniGBIC modules with the Switch. The MGBSX1 and the MGBLH1 require fiber cabling with LC connectors, while the MGBT1 requires a Category 5e Ethernet cable with an RJ-45 connector. NOTE: On the SRW2016, MiniGBIC ports are shared with standard ports. If a miniGBIC port is used, then the shared standard port on the Switch cannot be used. The following table provides port mapping details of the SRW2016 Switch.
SRW2016 Shared Port Mapping
Front Panel of the SRW2016
Standard Port Port 8 Port 16
POWER (Green) Lights up green to indicate that power is being supplied to the Switch. LINK/ACT (1-16) (Green) Lights up green to indicate a functional 10/100-Mbps network link through the corresponding port (1 through 16) with an attached device. It flashes to indicate that the Switch is actively sending or receiving data over that port. Gigabit (1-16) (Amber) Lights up amber to indicate a 1000-Mbps connection on the corresponding port (1 through 16) with an attached device. ETHERNET 1-16 The Switch is equipped with 16 auto-sensing, Ethernet network ports, which use RJ-45 connectors. The Fast Ethernet ports support network speeds of 10Mbps, 100Mbps, or 1000Mbps. 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 (10Mbps, 100Mbps, or 1000Mbps), and adjust its speed and duplex accordingly.
The Back Panel
Back Panel of the SRW2016
POWER The Power port is where you will connect the AC power. CONSOLE The Switch is equipped with a serial port labeled Console (located on the back of the switch) that allows you to connect to a computers serial port (for configuration purposes) using the provided serial cable. You can use HyperTerminal to manage the Switch using the console port. Refer to Chapter 4: Configuration Using the Console Interface for more information.
NOTE: If you need to reset the Switch, unplug the power cord from the back of the Switch. Wait a few seconds and then reconnect it.
ETHERNET G1-G4 The Switch is equipped with 4 auto-sensing Gigabit Ethernet network ports, which use RJ-45 connectors. The Gigabit Ethernet ports support network speeds of 10Mbps, 100Mbps, or 1000Mbps. 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 (10Mbps, 100Mbps, or 1000Mbps), 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 high-speed network segment or individual workstation at speeds of up to 1000Mbps. Use the Linksys MGBT1, MGBSX1, or MGBLH1 miniGBIC modules with the Switch. The MGBSX1 and the MGBLH1 require fiber cabling with LC connectors, while the MGBT1 requires a Category 5e Ethernet cable with an RJ-45 connector. NOTE: On the SRW248G4, MiniGBIC ports are shared with Gigabit Ethernet ports. If a miniGBIC port is used, then the shared Gigabit Ethernet port on the Switch cannot be used. The following table provides port mapping details of the SRW248G4 Switch.
Maximum Cabling Distances
Switch Hub Switch or Hub
Switch or Hub Hub Computer
100 meters (328 feet) 5 meters (16.4 feet) 100 meters (328 feet)
or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than the room ambient temperature. Therefore, consideration should be given to installing the equipment in an environment compatible with the maximum ambient temperature (Tma) specified by the manufacturer.
Reduced Air Flow Installation of the equipment
in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised.
Mechanical Loading Mounting of the equipment in
A hub refers to any type of 100-Mbps hub, including regular hubs and
stackable hubs. A 10-Mbps hub connected to another 10-Mbps hub can span up to 100 meters (328 feet).
Before You Install the Switch.
When you choose a location for the Switch, observe the following guidelines:
Make sure the Switch is accessible and that the cables
the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading.
Circuit Overloading Consideration should be given
can be easily connected.
Keep cabling away from sources of electrical noise,
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
power lines, and fluorescent lighting fixtures.
Position the Switch away from water and moisture
To ensure adequate air flow around the Switch, provide
a minimum clearance of two inches (50 mm).
Do not stack free-standing Switches more than four
equipment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuit (for example, use of power strips).
WebView Switches 8
To rack-mount the Switch in any standard 482.6-mm wide, 1U high rack, follow the instructions described below. 1. Place the Switch on a hard flat surface with the front panel facing you. 2. Attach a rackmount bracket to one side of the Switch with the supplied screws and secure the bracket tightly.
To connect network devices to the Switch, follow these instructions: 1. Make sure all the devices you will connect to the Switch are powered off. 2. For 10/100-Mbps devices, connect a Category 5 Ethernet network cable to one of the numbered ports on the Switch. For a 1000-Mbps device, connect a Category 5e Ethernet network cable to one of the numbered ports on the Switch. 3. Connect the other end to a PC or other network device. 4. Repeat steps 2 and 3 to connect additional devices. 5. If you are using the miniGBIC port, then connect the miniGBIC module to the miniGBIC port. For detailed instructions, refer to the modules documentation. 6. If you will use the Switchs console interface to configure the Switch, then connect the supplied serial cable to the Switchs Console port, and tighten the captive retaining screws. Connect the other end to your PCs serial port. (This PC must be running the VT100 terminal emulation software, such as HyperTerminal.) 7. Connect the supplied power cord to the Switchs power port, and plug the other end into an electrical outlet. WARNING: Make sure you use the power cord that is supplied with the Switch. Use of a different power cord could damage the Switch. 8. Power on the network devices connected to the Switch. Each active ports corresponding Link/Act LED will light up on the Switch. If a port has an active Gigabit connection, then its corresponding Gigabit LED will also light up. NOTE: If you need to reset the Switch, unplug the power cord from the back of the Switch. Wait a few seconds and then reconnect it.
NOTE: This setting has no effect when Management Access Rules are not defined.
The IP Configuration screen lets you configure the following options:
IP Address Settings HTTP Configuration HTTPS Configuration Network Configuration.
Use the Show Certificate screen to display the internal certificate.
IP Configuration SSL Certificate
IP Address Configuration
The IP Address Configuration screen lets you configure the Switchs IP address information.
The HTTP screen lets you configure the status and port number of the HTTP Server.
IP Address The IP Address of the Switch is displayed. (The default IP address is 192.168.1.254.) Verify that the address you enter is correct and does not conflict with another device on the network. Subnet Mask The subnet mask of the Switch is displayed. Default Gateway The IP address of your networks default gateway is displayed. Management VLAN The VLAN ID number is displayed. DHCP client The status of the DHCP client is displayed. If you want the Switch to be a DHCP client, then select ENABLE. If you want to assign an static IP address to the Switch, then enter the IP settings and select DISABLE. Select Edit to make changes. When your changes are complete, press the Esc key to return to the Action menu, and select Save to save your changes.
The HTTPS Configuration screen lets you configure the HTTPS settings. You can enable or disable the HTTPS server and configure the port on which the session is enabled.
The Network Configuration screen offers a choice of two tests: Ping and TraceRoute.
The TraceRoute screen displays the IP address of the address whose route you want to trace.
The Ping screen displays the IP address of the location you want to contact.
Select Edit to change the IP address, and select Execute to begin the traceroute test. After the traceroute test is complete, the TraceRoute screen displays the IP address, status, and statistics of the traceroute test. Select Edit and press the Enter key to make changes. When your changes are complete, press the Esc key to return to the Action menu. Select Save and press the Enter key to save your changes. To exit, select Quit and press the Enter key.
Select Edit to change the IP address, and select Execute to begin the ping test. After the ping test is complete, the Ping screen displays the IP address, status, and statistics of the ping test. Select Edit and press the Enter key to make changes. When your changes are complete, press the Esc key to return to the Action menu. Select Save and press the Enter key to save your changes. To exit, select Quit and press the Enter key.
Setup > Network Settings
System Name Specifies the name of the Switch. Enter the name into the text field provided. By default, a system name is not defined. System Location This field is used to enter a description of where the Switch is physically located, such as 3rd Floor. System Contact Enter the name of the administrator responsible for the system. System Object ID Displays the system object identifier. Base MAC Address Displays the physical address of the Switch.
Serial Number Displays the Switchs Serial Number. Model Name Displays the model name of the Switch. Hardware Version Displays the Switchs current hardware version. Boot Version Displays the current boot version of the Switch. Firmware Version Displays version. the Switchs software
Management VLAN This drop-down menu allows you to select the Management VLAN. IP Address Mode Specifies whether IP functionality is enabled via manual configuration (Static) or Dynamic Host Configuration Protocol (DHCP). Select Static or DHCP from the drop-down menu. Selecting Static will allow you to enter a static IP address, subnet mask and default gateway using the text field provided. The default setting is DHCP. Host Name Enter the DHCP Host Name here. IP Address If you are using a static IP address, enter the IP address here. Subnet Mask If you are using a static IP address, enter the subnet mask for the currently configured IP address. Default Gateway If you are using a static IP address, enter the IP address of the default gateway. 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.
System Location Displays the location of the system if it has been defined. This setting can be configured from the Setup tabs Network Settings screen. System Contact The name of the administrator appears here, if one has been defined. This setting can be configured from the Setup tabs Network Settings screen. System Up Time Displays the length of time that has elapsed since the Switch was last reset. Current Time Displays the current time. This setting can be configured from the Setup tabs Time screen.
The Network Settings screen allows you to assign DHCP or static IP settings to interfaces and assign default gateways.
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.
Time Set Offset For non-US and European countries, specify the amount of time for daylight savings. The default is 60 minutes. The range is (11440). From If you selected Other for the Daylight Saving setting, enter the date and time when daylight savings begins. To If you selected Other for the Daylight Saving setting, enter the date and time when daylight savings ends. Recurring If you selected Other for the Daylight Saving setting and daylight savings has the same start and end dates and times every year, select Recurring. From If you selected Recurring, enter the date and time when daylight savings begins. To If you selected Recurring, enter the date and time when daylight savings ends.
the default value.
Disable Disables Green Ethernet on the device.
Energy Saving Indicates the amount of energy conserved by enabling Green Ethernet.
PVE When a port is a Private VLAN Edge (PVE) port, it bypasses the Forwarding Database and forwards all unicast, multicast, and broadcast traffic to an uplink. Uplinks can be ports or LAGs. Detail The Detail button opens the Port Configuration Detail screen.
Current Auto Negotiation (Read-only) The ports current Auto-Negotiation status. Admin Advertisement Specifies the capabilities to be advertised by the port. Multiple options may be selected or Max Capability can be selected to cover all of the options. The available options are:
Max Capability The port advertises all speeds and
Port Settings > Port Configuration
duplex mode settings.
10 Half The port advertises 10Mbps half-duplex
10 Full The port advertises 10Mbps full-duplex
100 Half The port advertises 100Mbps half-duplex
100 Full The port advertises 100Mbps full-duplex
1000 Full (Gigabit ports only) The port advertises
Port The port number. Description User-defined port description. To modify the description, click Detail. Port Type (Read-only) The ports connection type and speed. Admin Status The ports administrative status. Select either Up or Down to enable or disable traffic forwarding through the port. Current Port Status (Read-only) The ports connection status, either Up or Down. Reactivate Suspended Port If the port has been suspended, select this checkbox to reactivate the port. Operational Status (Read-only) Displays whether the port is operational or non-operational. Admin Speed Use this to manually set the ports configured transmission rate in Mbps. You can select 10M, 100M, or 1000M (Gigabit ports only). Before you change this setting, make sure that Auto Negotiation is disabled. Current Port Speed (Read-only) The ports current rate in Mbps. Admin Duplex The ports duplex mode (Full or Half). Current Duplex Mode (Read-only) The ports current duplex mode. Auto Negotiation Select Enable (default) or Disable to enable or disable Auto-Negotiation on the port. AutoNegotiation allows a port to advertise its transmission rate, duplex mode, and flow control settings to other ports. If using a small-form-factor pluggable (SFP) module, select Disable.
1000Mbps full-duplex operation. NOTE: The SRW248G4 and SRW224G4 offer only the 1000 option on ports G1-G4.
VLAN Management > Ports to VLAN
The Ports to VLAN screen contains fields for configuring ports to a VLAN. The port default VLAN ID (PVID) is configured on the Create VLAN screen. All untagged packets arriving to the device are tagged by the ports PVID.
VLAN Management > Port Settings
Port The port number included in the VLAN. Mode Indicates the port mode. Possible values are:
General The port belongs to VLANs, and each VLAN
is user-defined as tagged or untagged (full 802.1Q mode).
Access The port belongs to a single untagged VLAN.
The Ports to VLAN screen contains a Port Table for VLAN parameters for each port. Ports are assigned VLAN membership by selecting and configuring the presented configuration options. VLAN The VLAN number. Access Indicates the port belongs to a single untagged VLAN. When a port is in Access mode, the packet types which are accepted on the port cannot be designated. Ingress filtering cannot be enabled or disabled on an access port. Trunk Indicates the port belongs to VLANs in which all ports are tagged, except for one port that can be untagged. General Indicates the port belongs to VLANs, and each VLAN is user-defined as tagged or untagged (full 802.1Q mode). Tagged Defines the interface as a tagged member of a VLAN. All packets forwarded by the interface are tagged. The packets contain VLAN information. Untagged Packets forwarded by the interface are untagged. Forbidden Forbidden ports are not included in the VLAN. Exclude Excludes the interface from the VLAN. However, the interface cannot be added to the VLAN through GVRP.
When a port is in Access mode, the packet types which are accepted on the port (packet type) cannot be designated. It is also not possible to enable or disable ingress filtering on an access port.
Trunk The port belongs to VLANs in which all ports are
tagged (except for an optional single native VLAN). Acceptable Frame Type Packet type accepted on the port. Possible values are:
Admit All Indicates that both tagged and untagged
packets are accepted on the port.
Admit Tag Only Indicates that only tagged packets
are accepted on the port. PVID Assigns a VLAN ID to untagged packets. The possible values are 24094. VLAN 4095 is defined as per standard and industry practice as the discard VLAN. Packets classified to the Discard VLAN are dropped. Ingress Filtering Enables or disables Ingress filtering on the port. Ingress filtering discards packets which do not include an ingress port. LAG Indicates the LAG to which the VLAN is defined.
TRAP Indicates that an SNMP trap is generated, and
sent via the Trap mechanism. The Trap can also be saved using the Trap mechanism.
Both Indicates that both the Log and Trap mechanism
Statistics > RMON Alarm
The RMON Alarm screen contains fields for setting network alarms. Network alarms occur when a network problem, or event, is detected. Rising and falling thresholds generate events.
are used to report alarms. Falling Threshold Displays the falling counter value that triggers the falling threshold alarm. The falling threshold is graphically presented on top of the graph bars. Each monitored variable is designated a color. Falling Event Displays the mechanism in which the alarms are reported. The possible field values are:
TRAP Indicates that a SNMP trap is generated, and
are used to report alarms. Startup Alarm Displays the trigger that activates the alarm generation. Rising is defined by crossing the threshold from a low-value threshold to a higher-value threshold. Interval Defines the alarm interval time in seconds. Owner Displays the device or user that defined the alarm. Use the Add to List button to add the RMON Alarms Table entry. The Alarm Table area contains the following additional field:
Alarm Entry Indicates a specific alarm. Source Interface Displays the interface for which RMON statistics are displayed. The possible field values are:
Port Displays the RMON statistics for the selected
LAG Displays the RMON statistics for the selected
LAG. Counter Name Displays the selected MIB variable.
Counter Value Displays the current counter value for the particular alarm.
RMON Events Log
Statistics > RMON Events
The RMON Events screen contains fields for defining RMON events.
RMON Events > Events Log
Event Displays the RMON events log entry number. Log No Displays the log number. Log Time Displays the time the log entry was entered.
Description Displays the log entry description.
Event Entry Displays the event. Community Displays the community to which the event belongs. Description Displays the user-defined event description. Type Describes the event type. Possible values are:
None Indicates that no event occurred. Log Indicates that the event is a log entry. Trap Indicates that the event is a trap. Log and Trap Indicates that the event is both a log
Statistics > Port Utilization
The Port Utilization screen displays the amount of resources each interface is currently consuming. Ports in green are functioning normally, while ports in red are currently transmitting an excessive amount of network traffic.
entry and a trap. Owner Displays the device or user that defined the event. Use the Add to List button to add the configured RMON event to the Event Table at the bottom of the screen. The Event Table area contains the following additional field: Time Displays the time that the event occurred.
Login Indicates that the RADIUS server is used for
authenticating user name and passwords.
WebView Switches 36
802.1X Indicates that the RADIUS server is used for
All Indicates that the RADIUS server is used for
Status Displays the connection status between the device and the TACACS+ server. The possible field values are:
Connected There is currently a connection between
authenticating user name and passwords, and 802.1X port authentication. Use the Add to List button to add the RADIUS configuration to the RADIUS Table at the bottom of the screen.
the device and the TACACS+ server.
Not Connected There is not currently a connection
between the device and the TACACS+ server. Single Connection Maintains a single open connection between the device and the TACACS+ server when selected Use the Add to List button to add the TACACS+ configuration to the TACACS+ table at the bottom of the screen.
Security > TACACS+
The device provides Terminal Access Controller Access Control System (TACACS+) client support. TACACS+ provides centralized security for validation of users accessing the device. TACACS+ provides a centralized user management system, while still retaining consistency with RADIUS and other authentication processes. The TACACS+ protocol ensures network integrity through encrypted protocol exchanges between the device and TACACS+ server.
Security > 802.1x Settings
Port based authentication enables authenticating system users on a per-port basis via an external server. Only authenticated and approved system users can transmit and receive data. Ports are authenticated via the RADIUS server using the Extensible Authentication Protocol (EAP).
Host IP Address Displays the TACACS+ Server IP address. Priority Displays the order in which the TACACS+ servers are used. The default is 0. Source IP Address Displays the device source IP address used for the TACACS+ session between the device and the TACACS+ server. Key String Defines the authentication and encryption key for TACACS+ server. The key must match the encryption key used on the TACACS+ server. Authentication Port Displays the port number through which the TACACS+ session occurs. The default is port 49. Timeout for Reply Displays the amount of time that passes before the connection between the device and the TACACS+ server times out. The field range is 130 seconds.
QoS > Queue Settings
The Queue Setting screen contains fields for defining the QoS queue forwarding types. NOTE: Individual queues cannot be assigned on the SRW224G4 and SRW248G4.
The DSCP Settings screen contains the following fields: DSCP Indicates the Differentiated Services Code Point value in the incoming packet. Queue Maps the DSCP value to the selected queue.
QoS > Bandwidth
The Bandwidth screen allows network managers to define the bandwidth settings for a specified egress interface. Modifying queue scheduling affects the queue settings globally. The Bandwidth screen is not used with the Service mode, as bandwidth settings are based on services. This feature has been added to version 1.2 of the SRW2024/ SRW2016 and version 1.1 of the SRW224G4/SRW248G4.
Queue Displays the queue for which the queue settings are displayed. The range is 14. Strict Priority Indicates that traffic scheduling for the selected queue is based strictly on the queue priority. WRR Indicates that traffic scheduling for the selected queue is based strictly on weighted round-robin (WRR).
Queue shaping can be based per queue and/or per interface. Shaping is determined by the lower specified value. The queue shaping type is selected in the Bandwidth screen. Interface Indicates the interface for which the queue shaping information is displayed. The possible field values are:
Port Indicates the port for which the bandwidth
QoS > Advanced Mode
Advanced QoS mode provides rules for specifying flow classification and assigning rule actions that relate to bandwidth management. The rules are based on the ACLs (see Access Control Tab). This feature has been added to version 1.2 of the SRW2024/SRW2016 and version 1.1 of the SRW224G4/SRW248G4.
settings are displayed.
LAG Indicates the LAG for which the bandwidth
settings are displayed. Ingress Rate Limit Status Indicates if rate limiting is defined on the interface. Egress Shaping Rate on Selected Port Indicates if rate limiting is enabled on the interface. Committed Information Rate (CIR) Defines CIR as the queue shaping type. The range is 641,000,000 Kbps. Committed Burst Size (CBS) Defines CBS as the queue shaping type. The possible field value is 409616,769,020 bits. Use the Add to List button to add the Bandwidth configuration to the Bandwidth Table at the bottom of the screen.
Source File Type in the name and path of the file or
Browse to locate the upgrade file.
Proceed The Proceed button is used to backup the
configuration to the local hard drive. NOTE: When downloading a configuration file, be sure that it is a valid configuration file. If you have edited the file, ensure that only valid entries have been configured.
Admin > Reboot
The Reboot screen resets the device. The device configuration is automatically saved before the device is rebooted.
Admin > Server Logs
The Server Logs screen contains information for viewing and configuring the Remote Log Servers. New log servers can be defined, and the log severity sent to each server.
Admin > Factory Defaults
The Factory Reset screen allows network managers to reset the device to the factory defaults shipped with the switch. Restoring factory defaults results in erasing the configuration file.
Server Specifies the server to which logs can be sent. UDP Port Defines the UDP port to which the server logs are sent. The possible range is 165,535. The default value is 514. Facility Defines a user-defined application from which system logs are sent to the remote server. Only one facility can be assigned to a single server. If a second facility level is assigned, the first facility is overridden. All applications defined for a device utilize the same facility on a server. The field default is Local 7. The range is Local 0Local 7. Description Provides a user-defined server description. Minimum Severity Indicates the minimum severity from which logs are sent to the server. For example, if Notice is selected, all logs from a Notice severity and higher are sent to the remote server. Use the Add to List button to add the Server Log configuration to the Server Log Table at the bottom of the screen.
NOTE: Restoring the factory defaults will erase all configuration settings that you have made. You can save a backup of your current configuration settings from Admin > Save Configuration.
Admin > Memory Logs
The Memory Log screen contains all system logs in a chronological order that are saved in RAM (Cache).
Admin > Flash Logs
The Flash Log screen contains information about log entries saved to the Log File in FLASH, including the time the log was generated, the log severity, and a description of the log message. The Message Log is available after reboot.
Log Index Displays the log number. Log Time Displays the time at which the log was generated. Severity Displays the log severity. Description Displays the log message text.
About Gigabit Ethernet and Fiber Optic Cabling
Gigabit Ethernet runs at speeds of 1Gbps (Gigabit per second), ten times faster than 100Mbps Fast Ethernet, but it still integrates seamlessly with 100Mbps Fast Ethernet hardware. Users can connect Gigabit Ethernet hardware with either fiber optic cabling or copper Category 5e cabling, with fiber optics more suited for network backbones. As the Gigabit standard gradually integrates into existing networks, current computer applications will enjoy faster access time for network data, hardware, and Internet connections.
Standards Ports IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.1p, 802.1q 16 or 24 10/100/1000 RJ-45 ports and 2 shared SFP (miniGBIC) slots Cat5e or better System, Link/Activity, Gigabit Capacity 32 or 48 Gbps, nonblocking 8K 256 VLANs Built-in Web UI for easy browser-based configuration (HTTP/HTTPS) SNMP version v1, v2c, v3 with support for traps RFC1213 MIB-2, RFC2863 Interface MIB, RFC2665 Etherlike MIB, RFC1493 Bridge MIB, RFC2674 Extended Bridge MIB (P-bridge, Q-bridge), RFC2819 RMON MIB (groups 1, 2, 3, 9 only), RFC2737 Entity MIB, RFC 2618 RADIUS Client MIB Embedded Remote Monitoring (RMON) software agent supports four RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis Web Browser upgrade (HTTP) TFTP upgrade Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe
Cabling Type LEDs
Switching MAC table size Number of VLANs
Web User Interface
VLAN SNMP SNMP MIBs
HOL Blocking Jumbo frame Dynamic VLAN Standards
Device Dimensions Weight Power Certification Firmware Upgrade Port Mirroring
Operating Temperature 32 to 104F (0 to 40C) Storage Temperature Operating Humidity Storage Humidity
RFC854 Telnet (Menu-driven configuration) Secure Shell (SSH) and Telnet Management RADIUS TACACS+ Telnet Client SSL security for Web UI Switch Audit Log DHCP Client BootP SNTP Xmodem upgrade Cable Diagnostics PING Traceroute Syslog 802.1x - RADIUS Authentication. MD5 Encryption MAC based ACL Link Aggregation using IEEE 802.3ad LACP Up to 8 ports in up to 8 trunks Broadcast, Multicast, and Unknown Unicast IEEE 802.1d Spanning Tree, IEEE 802.1s Multiple Spanning Tree, IEEE 802.1w Rapid Spanning Tree, Fast Linkover IGMP (v1/v2) snooping provides for fast client joins and leaves of multicast streams and limits bandwidth-intensive video traffic to only the requestors.
Priority levels Scheduling Class of Service 4 Hardware queues Priority Queueing and Weighted Round Robin (WRR) Port-based 802.1p VLAN priority based IP TOS/DSCP based IPv4 & IPv6 Traffic Class based COS MAC Address port security* VLAN ID* MAC Address* IP Address* Subnet Mask* Service Type* Protocol* TCP/UDP Port* Ingress Policer, Egress Shaper Port-based and 802.1q based VLANs Private VLAN Edge (PVE) Management VLAN Head of line blocking prevention Supports frames up to 10K byte frames GVRP - Dynamic VLAN Registration 802.3i 10BASE-T Ethernet, 802.3u 100BASE-TX Fast Ethernet, 802.3ab 1000BASE-T Gigabit Ethernet, 802.3z Gigabit Ethernet, 802.3x Flow Control 430 x 44.5 x 350 mm 7.3 lb (3.311 kg) 100240V 0.5A FCC Part15 Class A, CE Class A, UL, cUL, CE mark, CB 4 to 158F (20 to 70C) 20% to 95% relative humidity, noncondensing 5% to 90% noncondensing
Exclusions and Limitations
This limited warranty does not apply if: (a) the product assembly seal has been removed or damaged, (b) the product has been altered or modified, except by Linksys, (c) the product damage was caused by use with nonLinksys products, (d) the product has not been installed, operated, repaired, or maintained in accordance with instructions supplied by Linksys, (e) the product has been subjected to abnormal physical or electrical stress, misuse, negligence, or accident, (f ) the serial number on the Product has been altered, defaced, or removed, or (g) the product is supplied or licensed for beta, evaluation, testing or demonstration purposes for which Linksys does not charge a purchase price or license fee. ALL SOFTWARE PROVIDED BY LINKSYS WITH THE PRODUCT, WHETHER FACTORY LOADED ON THE PRODUCT OR CONTAINED ON MEDIA ACCOMPANYING THE PRODUCT, IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND. Without limiting the foregoing, Linksys does not warrant that the operation of the product or software will be uninterrupted or error free. Also, due to the continual development of new techniques for intruding upon and attacking networks, Linksys does not warrant that the product, software or any equipment, system or network on which the product or software is used will be
Obtaining Warranty Service
If you have a question about your product or experience a problem with it, please go to www.linksys.com/support where you will find a variety of online support tools and information to assist you with your product. If the product proves defective during the Warranty Period, contact the Value Added Reseller (VAR) from whom you purchased the product or Linksys Technical Support for instructions on how to obtain warranty service. The telephone number for Linksys Technical Support in your area can be found in the product User Guide and at www.linksys.com. Have your product serial number and proof of purchase on hand when calling. A DATED PROOF OF ORIGINAL PURCHASE IS REQUIRED TO PROCESS WARRANTY CLAIMS. If you are requested to return your product, you will be given a Return Materials Authorization (RMA) number. You are responsible for properly packaging and shipping your
product to Linksys at your cost and risk. You must include the RMA number and a copy of your dated proof of original purchase when returning your product. Products received without a RMA number and dated proof of original purchase will be rejected. Do not include any other items with the product you are returning to Linksys. Defective product covered by this limited warranty will be repaired or replaced and returned to you without charge. Customers outside of the United States of America and Canada are responsible for all shipping and handling charges, custom duties, VAT and other associated taxes and charges. Repairs or replacements not covered under this limited warranty will be subject to charge at Linksys then-current rates.
Linksys Gigabit Switch SRW2048 with WebView
The affordable, reliable, secure high density and managed Gigabit switch
With 48 high-performance 10/100/1000 Gigabit Ethernet Base-T ports and 4 shared mini-GBIC ports, as well as advanced networking features, the high density Linksys WebView Managed switch SRW2048 allows growing businesses to expand the performance and functionality of their network infrastructure substantially while preserving its safety. Offering an extensive range of QoS features, the SRW2048 is ready for real-time applications like voice and video. Also, it provides link aggregation and multiple Spanning Tree protocols, enabling you to setup multiple high-bandwidth network trunks and to build a mesh of switches and so greatly increase the performance and reliability of your network core as well as reducing network overhead. With its rich, easy to use management functionality the switch can be seamlessly integrated even into complex network infrastructures. State-of-the-art security features allow for secure local as well as remote network access and management.
Top 5 Selling Arguments
High Gigabit port density and corresponding switching power for high capacity and high performance network infrastructures Optimized for growing, network-oriented businesses with advanced networking functionality and safety features Supports real-time applications like voice and video through extensive QoS features User-friendly management and configuration through built-in Web based user interface combined with rich management functionality Competitive pricing within reach of budget-minded organisations
Target Market The Linksys Advantage
Linksys Business Series solutions offer leading edge technologies at prices well within the reach of budget minded businesses. They reduce operational complexity and deployment costs while increasing network performance and reliability as well as employee productivity. Linksys Business Series solutions are well equipped to mitigate the threats endangering todays networks. State-of-the-art security features help block attacks originating from outside and within the organisation. Linksys Business Series solutions are based on standards. They ensure compatibility today and into the future and can easily be integrated into existing multi-vendor networks while at the same time allowing for device level management. Linksys Business Series solutions are backed by free tech support, free firmware maintenance releases, and competitive warranties and provide far-reaching investment protection through the Linksys to Cisco Trade-Up Program. Growing small-to-medium businesses looking for innovative network applications and lacking dedicated full-time technical support staff.
The Linksys to Cisco Trade-Up Program
The Linksys to Cisco Trade-Up program offers Linksys customers a far-reaching, future-proof migration path. After purchasing certain Linksys products, customers have three full years time to trade them in for a Cisco product. When they are ready to upgrade to a solution beyond the scope of the Linksys product range, they can retain up to 100 percent of their original investment. This not only provides them with full investment protection during the whole of this time span but also with continuing access to best-in-class technology by obtaining Cisco products as the need arises. For more information go to www.cisco.com/go/linksys-tradeup
Linksys A Division of Cisco Systems, Inc.
Web: www.linksys.com/uk E-mail: firstname.lastname@example.org Linksys products are available in more than 50 countries, supported by 12 Linksys Regional Offices throughout the world. For a complete list of local Linksys Sales and Technical Support contacts, visit our Worldwide Web Site at www.linksys.com.
Features and Benefits
Feature 48 - 10/100/1000 switched RJ-45 Gigabit ports 4 shared Mini GBIC slots 802.1p and 802.1q/DSCP traffic prioritisation, 4 queues, IPv4 Traffic Class based COS, IGMP Snooping 256 port based and 802.1q based VLANs, Private VLAN Edge (PVE), Management VLAN Link Aggregation using IEEE 802.3ad LACP, up to 8 ports in up to 8 trunks Spanning Tree (802.1d), Rapid Spanning Tree (802.1w) and Multiple Spanning Tree (802.1s) Built-in Web user interface WebView remote monitoring Benefit High GE port density supporting extended network infrastructures Provides option to connect fiber to the switch Real-time application ready through QoSFeatures: VoIP, Video, etc. Up to 4096 VLAN IDs for greater flexibility and improved segmentation Expandability and availability increased in multiple switch network environments as well as performance increase Allows reliable operation of complex meshed network environments, generates a logical network structure Web user interface for easy browser-based configuration and management Provides network administrators a centralized control point from which they can monitor their network. Flexible configuration options allow easy integration into existing network infrastructures Secure management of switch through data encryption Secure networking through state-of-the-art access control Reduces down times through simple trouble shooting and remote diagnostics of cable problems without additional test equipment
Customers' Objections and Answers
Objection: We dont need the high power and advanced features of the Linksys SRW2048 switch. Answer: A reliable, high performance converged network infrastructure with voice and video functionality offers high potentials for innovative applications while saving costs and enabling productivity gains. The Linksys SRW2048 provides these benefits at a competitive price level. Objection: Our existing network equipment is from other vendors which could make integration difficult and cause compatibility problems. Answer: The rich management functionality of this WebView switch allows you to integrate and manage the device in your network with great flexibility. Like all Linksys products, the SRW2028 is based on industry standards, making it compatible with all other standards-based products. Objection: Utilising the advanced switch features requires a high level of expertise. Answer: The built-in Web based user interface allows the switch to be configured and managed easily with a minimum of expertise, allowing smallto-medium businesses with limited network management resources to take full advantage of its rich functionality plus additionally providing extended management functions such as SNMP, embedded RMON and Telnet. Objection: Linksys is a consumer products company, not a vendor of professional network solutions. Answer: Linksys is a division of Cisco Systems, Inc., the worldwide leader in networking for the Internet. Powered by Ciscos award winning technology, Linksys Business Series solutions are specifically well suited for the needs of small-to-medium businesses. Objection: The switch is not part of an extended migration path that my business can follow as its networking needs develop. Answer: Through the Linksys to Cisco Trade-Up Program, Linksys solutions provide a far-reaching migration path and future-proof investment protection.
Port configuration settings for link, speed, auto MDI/MDIX, flow control, and more SSH for Telnet interface and SSL for HTTP interface + SNMP v1, v2v, and v3 support User/network security via 802.1x (with RADIUS authentication) and MAC-based filtering Integrated cable diagnostics
Internet e.g. via DSL or Cable
Server-Room with Servers and NAS
Rv082 VPN Router
SRW2048 Gigabit Backbone
Competitive Information Number of 10/100/1000 Ports Number Of GE Uplinks VLANs (port/802.1q) Number of queues QoS 802.1x (authentication) Telnet (remote management access) Cable diagnostics
Linksys SRW4 64/SP/WRR 802.1p/q Port based Yes Yes
Netgear GS748T 26/SP/WRR 802.1p/q No No No
PC 1 PC 2 to PC 12
Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright 2006 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders.
Small businesses require cost-effective yet scalable networking solutions that can meet changing business needs. The Cisco SRW2048 48-Port Gigabit Switch brings Gigabit speeds to your users and servers, while increasing the intelligence and security of the network infrastructure. The forty-eight 10/100/1000 Mbps ports enable you to take advantage of the Gigabit Ethernet interfaces shipping in the current generation of servers, workstations, and storage devices, in addition to supporting your existing 10/100 Mbps clients. Network security is a top priority in any size business. Most business data networks, large and small, are unsecure. Unauthorized access to the network and mission-critical data is a constant concern. The Cisco SRW2048 helps secure the network by using 802.1X port authentication, access control lists (ACLs), and MAC addresses port locking. The 802.1X standard requires clients to authenticate themselves before the port will pass data for them. Businesses are recognizing the benefits of voice over IP (VoIP) and are quickly migrating their voice services to IP-based platforms, requiring their local area networks to support both voice and data applications. In unmanaged IP networks, bursty data sessions can disrupt voice packet delivery, causing poor voice quality. With the enhanced QoS and traffic management features in the Cisco SRW2048, voice data can be prioritized, helping ensure clear and reliable voice communications. Taking advantage of the advanced features of the Cisco SRW2048 can further secure the integrity of your network. The WebView interface provides an intuitive, highly secure management interface, enabling you to better utilize the comprehensive feature set of the switch for a better-optimized, more secure network.
|Device Type||Switch - managed|
|Enclosure Type||Rack-mountable - 1U|
|Ports Qty||48 x Ethernet 10Base-T, Ethernet 100Base-TX, Ethernet 1000Base-T|
|Data Transfer Rate||1 Gbps|
|Data Link Protocol||Ethernet, Fast Ethernet, Gigabit Ethernet|
|Remote Management Protocol||SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, SSH|
|Communication Mode||Half-duplex, full-duplex|
|MAC Address Table Size||8K entries|
|Status Indicators||Link activity, port transmission speed, power, link OK|
|Features||Flow control, layer 2 switching, DHCP support, BOOTP support, trunking, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, Syslog support, port mirroring, DiffServ support, Weighted Round Robin (WRR) queuing, store and forward, MAC address filtering, Broadcast Storm Control, IPv6 support, Multicast Storm Control, Unicast Storm Control, firmware upgradable, SNTP support, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, Trivial File Transfer Protocol (TFTP) support, Access Control List (ACL) support, Quality of Service (QoS), Jumbo Frames support|
|Compliant Standards||IEEE 802.3u, IEEE 802.3i, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.1ab (LLDP)|
|Expansion / Connectivity|
|Expansion Slots Total (Free)||4 ( 4 ) x SFP (mini-GBIC)|
|Interfaces||48 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45 1 x management - console|
|Cables Included||1 x network cable 1 x serial cable|
|Rack Mounting Kit||Included|
|Encryption Algorithm||MD5, SSL|
|Authentication Method||Secure Shell (SSH), RADIUS|
|Compliant Standards||UL, cUL, CB, FCC Part 15 A, CE Class A|
|Power Device||Power supply - internal|
|Software / System Requirements|
|Software Included||Cisco WebView|
|Service & Support||5 years warranty|
|Service & Support Details||Limited warranty - replacement - 5 years New releases update - 90 days Technical support - phone consulting - 1 year|
|Min Operating Temperature||32 °F|
|Max Operating Temperature||104 °F|
|Humidity Range Operating||10 - 90%|
|Universal Product Identifiers|
LE40A559 Console Settings CLP-320N TVA 2046 DCR-DVD110 PSB240 42LH4900 Z PEN JX 200 Galeo 5250 DSC-W80 W Ericsson K550 Lenovo V560 Force 3D UP-CR10L KDL-32V4720 DJ-175 E LE22A451c1 PCG-Z600LEK Competence 824B Series HD 25 SGH-P180 Link Aggregation Nakamichi LX5 RE-44NZ21RB Frontman 15B APA2102 Lifebook C DVP-S7700 Console RL34egps1 Default Ip Photosmart 715 DLC-10S DSC-T300 R Serie 1 CQ-DRX900N CDP-CX260 Cu-vd40 Polo RX-150 Fireworks 37LF65-ZC AEC 33csptn01 Blazer 1996 CDE-9846R SF-830 DSP-A1 NV-GS120K MCD11E3B PCG-GRS515M DW341K Indesit BA13 LG XC62 Holder LN26R71BD Motorola VE66 Wbr-6002 Evolution SPD-20 Password Aspire-T310 E-520 Firmware Nikkormat EL Perfection V700 FM-8500 Sports Siemens A56I C905A 2036MU FAX-JX200 CSH-5L Dvdr610-00 E-PC 40 ATC-2K Default Password Gz-mg37 X-press Mini TH-D7E Datasheet W2228H Fishfinders LF-D7150 KX-TD1232 HDR-UX7 KX-TD816 Glide Tenere AV220 RAM 784 Firmware Update SGH-E710 Verve 410 IBM T22 Caplio R1 LE32A431t2 WS-7016U R380S TX-20LA80FS ITI V3 Stratoliner-2006 VK2000 Avxd 129 Dreamweaver Deskjet 350C ANT24D18
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