Lantronix SM24TBT2DPA User manual

SM24TBT2DPA and SM24TBT2DPB
Managed Gigabit Ethernet PoE++ Switch
(24) 10/100/1000Base-T Ports + (2) 100/1000Base-X SFP/RJ-45 Combo Ports
Web User Guide
Part Number 33738
Revision H April 2022

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Intellectual Property
© 2022 Lantronix, Inc. All rights reserved. No part of the contents of this publication may be transmitted or
reproduced in any form or by any means without the written permission of Lantronix.
Lantronix is a registered trademark of Lantronix, Inc. in the United States and other countries.
All other trademarks and trade names are the property of their respective holders.
Patented: https://www.lantronix.com/legal/patents/; additional patents pending.
Warranty
For details on the Lantronix warranty policy, go to http://www.lantronix.com/support/warranty.
Contacts
Lantronix Corporate Headquarters
7535 Irvine Center Drive
Suite100
Irvine, CA 92618, USA
Toll Free: 800-526-8766
Phone: [phone]
Fax: [phone]
Technical Support
Phone: [phone] or 1.800.260.1312
Email: https://www.lantronix.com/technical-support/
Sales Offices
For a current list of our domestic and international sales offices, go to the Lantronix web site at
www.lantronix.com/about/contact.
Disclaimer
All information contained herein is provided “AS IS.” Lantronix undertakes no obligation to update the
information in this publication. Lantronix does not make, and specifically disclaims, all warranties of any
kind (express, implied or otherwise) regarding title, non-infringement, fitness, quality, accuracy,
completeness, usefulness, suitability or performance of the information provided herein. Lantronix shall
have no liability whatsoever to any user for any damages, losses and causes of action (whether in contract
or in tort or otherwise) in connection with the user’s access or usage of any of the information or content
contained herein. The information and specifications contained in this document are subject to change
without notice.
Revision History
Rev
Date
Description
G 6/21/21
FW VB6.64.0031: add PoE Force Mode feature and add seven API commands.
Add note on the time it takes to have PoE++ power on the ports to power PDs again
after a cold restart. Add support for one VLAN interface gateway for the default
route and add two icons (Mini fridge and Shade) to identify DMS devices, add API
commands.
H 4/26/22 Initial Lantronix SM24TBT2DPB release at
FW vB6.64.0045 and
SM24TBT2DPA FW
vB6.64.0043.

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Contents
Safety Warnings and Cautions ............................................................................................................. 8
Introduction ............................................................................................................................................ 7
Chapter 1 - Web-based Management Operation ................................................................................. 9
1-1.1 Web UI Controls ....................................................................................................................... 10
1-1.2 First Time Wizard...................................................................................................................... 12
1-1.3 Web UI Modules ....................................................................................................................... 15
Chapter 2 - System Configuration...................................................................................................... 16
2-1 System ............................................................................................................................................. 16
2-1.1 Information................................................................................................................................ 16
2-1.2 IP .............................................................................................................................................. 18
2-1.3 NTP........................................................................................................................................... 23
2-1.4 Time .......................................................................................................................................... 24
2-1.5 Log............................................................................................................................................ 26
2-2 Green Ethernet ................................................................................................................................ 27
2-3 Ports Configuration .......................................................................................................................... 29
2-3.1 Ports ......................................................................................................................................... 29
2-3.2 Ports Description ...................................................................................................................... 31
2-4 DHCP ............................................................................................................................................... 32
2-4.1 Server ....................................................................................................................................... 32
2-4.1.1 Mode ................................................................................................................................. 32
2-4.1.3 Pool ................................................................................................................................... 35
2-5 Security ............................................................................................................................................ 44
2-5.1 Switch ....................................................................................................................................... 44
2-5.1.1 Users ................................................................................................................................. 44
2-5.1.2 Privilege Levels ................................................................................................................. 46
2-5.1.3 Authentication Method....................................................................................................... 48
2-5.1.4 HTTPS Configuration ........................................................................................................ 50
2-5.1.6 Access Management......................................................................................................... 52
2-5.1.8.2 History..................................................................................................................................... 67
2-5.2 Network..................................................................................................................................... 71
2-5.2.1 Limit Control ...................................................................................................................... 71
2-5.2.2 NAS ................................................................................................................................... 74
2-5.2.3 ACL.................................................................................................................................... 80
2-5.2.4 IP Source Guard................................................................................................................ 91
2-5.2.5 ARP Inspection.................................................................................................................. 94
2-5.3 AAA......................................................................................................................................... 101
2-5.3.1 RADIUS........................................................................................................................... 101
2-5.3.2 TACACS+ ........................................................................................................................ 104
2-6 Aggregation.................................................................................................................................... 106
2-6.1 Static....................................................................................................................................... 106
2-6.2 LACP ...................................................................................................................................... 108
2-7 Loop Protection.............................................................................................................................. 109
2-8 Spanning Tree.................................................................................................................................111
2-8.1 Bridge Setting ......................................................................................................................... 112
2-8.2 MSTI Mapping ........................................................................................................................ 114
2-8.3 MSTI Priorities ........................................................................................................................ 116
2-8.4 CIST Ports .............................................................................................................................. 117
2-8.5 MSTI Ports.............................................................................................................................. 119
2-9 IPMC Profile................................................................................................................................... 121
2-9.1 Profile Table ............................................................................................................................ 121
2-9.1.1 IPMC Profile Rule Settings Table .................................................................................... 123
2-9.2 Address Entry ......................................................................................................................... 124
2-10 MVR ............................................................................................................................................. 125
2-11 IPMC ............................................................................................................................................ 127

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2-11.1 IGMP Snooping..................................................................................................................... 127
2-11.1.1 Basic Configuration ....................................................................................................... 127
2-11.1.2 VLAN Configuration....................................................................................................... 129
2-11.1.3 Port Filtering Profile....................................................................................................... 131
2-11.2 MLD Snooping ...................................................................................................................... 133
2-11.2.1 Basic Configuration ....................................................................................................... 133
2-11.2.2 VLAN Configuration....................................................................................................... 135
2-11.2.3 Port Filtering Profile....................................................................................................... 137
2-12 LLDP ............................................................................................................................................ 138
2-12.1 LLDP Configuration .............................................................................................................. 138
2-12.2 LLDP-MED Configuration ..................................................................................................... 141
2- 13 PoE ............................................................................................................................................. 146
2- 13.3 PoE Schedule Profile........................................................................................................... 154
2- 13.4 PoE Auto Power Reset (PoE Auto Checking) ..................................................................... 155
2- 13.5 PoE Chip Reset Schedule ................................................................................................... 157
2-14 MAC Table.................................................................................................................................... 158
2-15 VLANs .......................................................................................................................................... 160
2-16 Private VLANs.............................................................................................................................. 163
2-16.1 Private VLAN Membership Configuration............................................................................. 163
2-16.2 Port Isolation......................................................................................................................... 165
2-17 VCL .............................................................................................................................................. 166
2-17.1 MAC-based VLAN ................................................................................................................ 166
Messages: ................................................................................................................................... 167
2-17.2 Protocol-based VLAN ........................................................................................................... 168
2-17.2.1 Protocol to Group .......................................................................................................... 168
2-17.2.2 Group to VLAN.............................................................................................................. 170
2-17.3 IP Subnet-based VLAN ........................................................................................................ 171
2-18.1 Configuration ........................................................................................................................ 172
2-18.2 OUI ....................................................................................................................................... 174
2-19 QoS .............................................................................................................................................. 175
2-19.1 Port Classification................................................................................................................. 175
2-19.2 Port Policing ......................................................................................................................... 177
2-19.4 Port Schedulers .................................................................................................................... 178
2-19.6 Port Tag Remarking .............................................................................................................. 184
2-19.7 Port DSCP ............................................................................................................................ 187
2-19.8 DSCP-Based QoS ................................................................................................................ 189
2-19.9 DSCP Translation ................................................................................................................. 190
2-19.10 DSCP Classification ........................................................................................................... 191
2-19.12 Storm Control ..................................................................................................................... 197
2-20 Mirroring....................................................................................................................................... 198
2-20 Mirroring....................................................................................................................................... 199
2-21 UPnP............................................................................................................................................ 200
2-22. GVRP .......................................................................................................................................... 201
2-22.1 GVRP Config ........................................................................................................................ 201
2-22.2 Port Config............................................................................................................................ 203
2-23. sFlow........................................................................................................................................... 204
2-24 Rapid Ring Configuration............................................................................................................. 207
2-25 SMTP Configuration..................................................................................................................... 208
Chapter 3 - Monitor ............................................................................................................................ 209
3-1 System ........................................................................................................................................... 209
3-1.1 Information.............................................................................................................................. 209
3-1.2 IP Status ................................................................................................................................. 211
3-1.3 Log.......................................................................................................................................... 213
3-1.4 Detailed Log ........................................................................................................................... 215
3-2 Green Ethernet .............................................................................................................................. 218
3-2.1 Port Power Savings ................................................................................................................ 218
3-3 Ports............................................................................................................................................... 219
3-3.1 Traffic Overview ...................................................................................................................... 219

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3-3.2 QoS Statistics ......................................................................................................................... 220
3-3.3 QCL Status ............................................................................................................................. 221
3-3.4 Detailed Statistics ................................................................................................................... 223
3-3.5 SFP Port Info .......................................................................................................................... 225
3-4 DHCP ............................................................................................................................................. 227
3-4.1 Server ..................................................................................................................................... 227
3-4.1.1 Statistics .......................................................................................................................... 227
3-4.1.2 Binding ............................................................................................................................ 229
3-5 Security .......................................................................................................................................... 237
3-5.2 Network................................................................................................................................... 238
3-5.2.1 Port Security.................................................................................................................... 238
3-5.2.2 NAS ................................................................................................................................. 241
3-5.2.3 ACL Status ...................................................................................................................... 248
3-5.2.4 ARP Inspection................................................................................................................ 250
3-5.2.5 IP Source Guard.............................................................................................................. 251
3-5.3 AAA......................................................................................................................................... 252
3-5.3.1 RADIUS Overview........................................................................................................... 252
3-5.4 Switch ..................................................................................................................................... 258
3-5.4.1 RMON ............................................................................................................................. 258
3-6 Aggregation.................................................................................................................................... 265
3-6.1 Aggregation Status ................................................................................................................. 265
3-6.2 LACP System Status .............................................................................................................. 266
3-6.3 LACP Port Status ................................................................................................................... 267
3-6.3 LACP Port Statistics ............................................................................................................... 268
3-7 Loop Protection.............................................................................................................................. 269
3-8 Spanning Tree................................................................................................................................ 270
3-8.1 Bridge Status .......................................................................................................................... 270
3-8.2 Port Status .............................................................................................................................. 273
3-8.3 Port Statistics.......................................................................................................................... 274
3-9 MVR ............................................................................................................................................... 275
3-9.1 Statistics ................................................................................................................................. 275
3-9.2 MVR Channels Groups........................................................................................................... 276
3-10 IPMC ............................................................................................................................................ 279
3-10.1 IGMP Snooping .................................................................................................................... 279
3-10.1.1 Status ............................................................................................................................ 279
3-10.1.2 Group Information ......................................................................................................... 281
3-10.1.3 IPv4 SFM Information ................................................................................................... 282
3-10.2 MLD Snooping...................................................................................................................... 283
3-10.2.1 Status ............................................................................................................................ 283
3-10.2.2 Group Information ......................................................................................................... 285
3-10.2.3 IPv6 SFM Information ................................................................................................... 286
3-11 LLDP ............................................................................................................................................ 288
3-11.1 Neighbors.............................................................................................................................. 288
3-11.2 LLDP-MED Neighbor ............................................................................................................ 290
3-11.3 PoE ....................................................................................................................................... 293
3-11.4 EEE....................................................................................................................................... 294
3-11.5 Port Statistics ........................................................................................................................ 295
3-12 PoE .............................................................................................................................................. 297
3-13 MAC Table.................................................................................................................................... 299
3-14 VLANs .......................................................................................................................................... 301
3-14.1 VLAN Membership ............................................................................................................... 301
3-13.2 VLAN Port............................................................................................................................. 303
3-15 VCL .............................................................................................................................................. 305
3-15.1 MAC-based VLAN ................................................................................................................ 305
3-15.2 Protocol-based VLAN ........................................................................................................... 306
3-15.2.1 Protocol to Group .......................................................................................................... 306
3-15.2.2 Group to VLAN.............................................................................................................. 308
3-15.3 IP Subnet-based VLAN ........................................................................................................ 309
3-16 sFlow............................................................................................................................................ 310

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Chapter 4 - Diagnostics ..................................................................................................................... 312
4-1 Ping ................................................................................................................................................ 312
4-2 Ping6 .............................................................................................................................................. 313
4-3 Cable Diagnostics .......................................................................................................................... 314
4-4 Traceroute...................................................................................................................................... 316
Chapter 5 - Maintenance.................................................................................................................... 318
5-1 Restart Device ............................................................................................................................... 318
5-2 Reboot Schedule ........................................................................................................................... 319
5-3 Factory Defaults............................................................................................................................. 320
5-4 Firmware ........................................................................................................................................ 321
5-4.1 Firmware Upgrade.................................................................................................................. 321
5-3.2 Firmware Selection................................................................................................................. 324
5-4 Configuration.................................................................................................................................. 325
5-4.1 Save startup-config................................................................................................................. 325
5-4.3 Download................................................................................................................................ 326
5-4.2 Upload .................................................................................................................................... 327
5-4.4 Activate ................................................................................................................................... 328
5-4.5 Delete ..................................................................................................................................... 329
5-5 Server Report................................................................................................................................. 330
Chapter 6 - DMS (Device Management System) ............................................................................. 331
6-1 The DMS Tab ................................................................................................................................. 331
6-2 DMS Overview ............................................................................................................................... 331
6-2.1 DMS > DMS Mode > Information ........................................................................................... 332
6-4 Graphical Monitoring...................................................................................................................... 335
PoE Auto Checking “AutoFill” Feature......................................................................................... 340
Chapter 7 - Troubleshooting ............................................................................................................. 369
Appendix A – DHCP Per Port ............................................................................................................ 371
Appendix B – Service, Warranty, and Tech Support....................................................................... 375
Appendix C –Compliance Information............................................................................................. 375

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Introduction
Product Description
Lantronix SM24TBT2DPA is a high performance Layer 2 managed switch with 52 Gbps switching
capacity. It provides (24) 10/100/1000 copper ports with IEEE 802.3bt PoE++ capability and (2) additional
100/1000 dual speed SFP/RJ-45 Combo ports. The SM24TBTDPA complies with the latest IEEE 802.3bt
PoE++ standard and supplies up to 90 Watts per port. It can provide up to 1560 Watts PoE output when
equipped with dual hot-swappable power supplies.
The Lantronix SM24TBT2DPB is a high performance Layer 2 managed switch with 52 Gbps switching
capacity. It provides (24) 10/100/1000 copper ports with IEEE 802.3bt PoE++ capability and (2) additional
100/1000 dual speed SFP/RJ-45 combo ports. The SM24TBT2DPA complies with the latest IEEE
802.3bt PoE++ standard and supplies up to 90 Watts per port. It can provide up to 2160 Watts PoE
output (90W on all 24 ports) with the dual hot-swappable power supplies equipped.
Model differences are noted where they apply.
Overview of this Manual
•Chapter 1 Operation of Web-based Management
•Chapter 2 System Configuration
•Chapter 3 Configuration
•Chapter 4 Monitor
•Chapter 5 Maintenance
•Chapter 6 DMS (Diagnostic Management System)
•Chapter 7 Troubleshooting
•Appendix A DHCP Per Port
•Appendix B Service, Warranty & Tech Support
•Appendix C Compliance Information
About This Manual
Purpose: This manual gives specific information on how to use the management functions of the
SM24TBT2DPx.
Audience: The manual is intended for use by network administrators who are responsible for operating
and maintaining network equipment; consequently, it assumes a basic working knowledge of general
switch functions, the Internet Protocol (IP), and Simple Network Management Protocol (SNMP).
Disclaimer: Lantronix does not warrant that the hardware will work properly in all environments and
applications, and marks no warranty and representation, either implied or expressed, with respect to the
quality, performance, merchantability, or fitness for a particular purpose. Lantronix disclaims liability for
any inaccuracies or omissions that may have occurred. Information in this User Guide is subject to change
without notice and does not represent a commitment on the part of Lantronix. Lantronix assumes no
responsibility for any inaccuracies that may be contained in this User Guide. Lantronix makes no
commitment to update or keep current the information in this User Guide and reserves the right to make
improvements to this User Guide and /or to the products described in this User Guide, at any time without
notice.

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Related Manuals
These manuals give specific information on how to operate the web-based switch management functions:
 SM24TBT2DPA Quick Start Guide, 33736
 SM24TBT2DPA Install Guide, 33737
 SM24TBT2DPB Quick Start Guide, 33844
 SM24TBT2DPB Install Guide, 33845
 SM24TBT2DPA and DPB Web User Guide, 33738 (this manual)
 SM24TBT2DPA and DPB CLI Reference, 33739
 SM24TBT2DPA API User Guide, 33822
 Release Notes (version specific)
Go to the Lantronix Resource Center for Lantronix Firmware, Manuals, Tech Support, Knowledge Base,
FAQs, etc. Note that this manual provides links to third part web sites for which Lantronix is not
responsible.
Safety Warnings and Cautions
These products are not intended for use in life support products where failure of a product could reasonably be
expected to result in death or personal injury. Anyone using this product in such an application without express
written consent of an officer of Lantronix does so at their own risk and agrees to fully indemnify Lantronix for any
damages that may result from such use or sale.
Attention: this product, like all electronic products, uses semiconductors that can be damaged by ESD
(electrostatic discharge). Always observe appropriate precautions when handling.
NOTE: Emphasizes important information or calls your attention to related features or instructions.
WARNING: Alerts you to a potential hazard that could cause personal injury.
CAUTION: Alerts you to a potential hazard that could cause loss of data or damage the system or
equipment.

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Chapter 1 - Web-based Management Operation
1-1 Initial Configuration
This chapter describes how to configure and manage the SM24TBT2DPx via the web user interface.
The Web UI lets you easily configure and monitor switch functions from any switch port, including port
activity, Spanning tree status, port aggregation status, multicast traffic, VLAN status, etc.
The default values are listed below:
IP Address 192.168.1.77
Subnet Mask 255.255.255.0
Default Gateway 192.168.1.254
Username admin
Password admin
After the SM24TBT2DPx interface configuration is finished, you can browse it. For instance, type
http://192.168.1.77 in the address row in a browser; the Login screen displays prompting you to enter a
username and password in order to login and access authentication.
The default username is “admin” and password is “admin”. For first time use, enter the default username
and password, and then click the <Login> button. The login process now is completed. In this login menu,
you must enter the complete username and password respectively; the SM24TBT2DPx will not give you a
shortcut to the username automatically.
The SM24TBT2DPx allows two or more admin users to manage this switch; the last configuration settings
will be the configuration used by the system.
Note: When you login to manage the switch via Web/CLI, you must first type the Username of admin and
Password admin, and then press Enter to access the Management page. When you log in to Web UI
management, you can use either IPv4 or IPv6.
Note: The DHCP function is disabled by default, so if you do not have a DHCP server to provide IP
addresses to the switch, the switch uses default IP address 192.168.1.77. The Login page is shown below:

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The SM24TBT2DPx startup page (Switch > Monitor > System > Information) is shown below:
1-1.1 Web UI Controls
You can click the logo in the Web UI top left corner to come back to this page from anywhere in the menu
system.
The Web UI top left corner displays an icon ( ) that alternately hides and displays the left hand menus.
The Web UI top left corner also displays a switch icon that lets you hover the cursor over a front panel
component to display the status / description for that component (shown below). You can also click on a
port to display that port’s Detailed Port Statistics.

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The Web UI top right corner displays a set of three icons ( ) that let you Save
Configuration, display online Help, and Logout. You can hover the cursor over any icon to display its
function ( ).
The Web UI top right corner also displays the currently displayed page’s menu path (e.g., Home > Monitor
> System > Information) as shown below:
Auto-logout: The Auto-logout dropdown lets you set the amount of time after a successful login before an
automatic log out occurs. The selections are OFF, 1, 2, 3, 4, 5, 10, 20, 30, 40, and 60 minutes (added at
FW vB6.54.3494). The default is 10 minutes. When set to OFF, no Auto-logout occurs.
Auto-Logout Timeout: After you change the Auto-Logout timeout and then log out and log
back in, the Auto-Logout timeout setting will be the setting saved to the start-up config file.
When the Auto-Logout timeout setting is changed, it directly writes to running-config.
To save the timeout change to start-up config, you must execute a save to startup-config.
To examine the running-config, you can run the CLI command “showing running-config” or
in the Web UI just log out and log back in again.
To save the timeout change into startup-config, you must do a save to startup-config and
then reboot the switch.
In summary:
•When you power on the switch, it will get the settings from startup-config.
•When you logout and login (without switch reboot), the switch will get the timeout settings from
startup-config.
•When you reload defaults, the switch will get the timeout settings default-config.
For the “Save to start-up config” behavior, if you don’t save the config, when you change the timeout
setting but logout, at the next login the timeout setting remains unchanged as the setting in start-up config.
If you save timeout setting to start-up config:
If you don’t save timeout setting to start-up
config:
When you change the timeout setting and save
to startup-config (click the disc icon), the
changed timeout setting will be applied to
running-config and start-up config immediately.
When you change the timeout setting (without save
to startup-config), the timeout change will be
applied to running-config immediately.
After Logout and login, the timeout setting will be
the setting saved in start-up config.
After Logout and login, the timeout setting will be
the setting saved in start-up configure.
After a switch reboot, the timeout setting will be
the setting saved in start-up config.
After you reboot the switch, the timeout setting will
be the setting saved in start-up config.

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1-1.2 First Time Wizard
The first time you use this device you must configure some basic settings such as password, IP address,
date and time, and system information. Use the following procedure:
Step 1: Change default password
Enter a new password and then enter it again. The Password must contain at least 8 characters, at least 1
upper case letter, 1 lower case letter and one numeric character. The new password cannot be blank or
the default value. Click the Next button.
Figure 2-1: Change default password
Step 2: Set IP address
Select “Obtain IP address via DHCP” or “Set IP address manually” to set the IP address.
If setting manually, enter IP address, Subnet mask, and Default router.
If obtaining via DNS, enter a DNS server IP address. See “Messages” below.
If obtaining via DHCP, enter a DHCP server IP address.
Click the Next button.
Figure 2-2a: Set IP address

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Figure 2-2b: Set IP address
The value of 'DNS' must be a valid IP address in dotted decimal notation ('x.y.z.w'). The following
restrictions apply: 1) x, y, z, and w must be decimal numbers between 0 and 255, 2) x must not be 0
unless also y, z, and w are 0, 3) x must not be 127, and 4) x must not be greater than 223.
Step 3: Set date and time
Enable “Automatic data and time” or select “Manually” to set or select the desired date and time.
If you enable “Automatic data and time” then you must enter a “Server Address” and select a “Time zone”.
Click the Next button when done.
Figure 2-3: Set date and time

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Step 4: Set system information
You can set some system information to this device, such as “System contact”, “System name”, and
“System location”. Click the Apply button when done.
Figure 2-4: Set system information
Message: Password format error.
Message: The value of 'DNS' must be a valid IP address in dotted decimal notation ('x.y.z.w').
The following restrictions apply: 1) x, y, z, and w must be decimal numbers between 0 and 255, 2) x must
not be 0 unless also y, z, and w are 0, 3) x must not be 127, and 4) x must not be greater than 223.

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1-1.3 Web UI Modules
The SM24TBT2DPx Web UI management modules include:
Switch: Configuration, Monitor, Diagnostics, and Maintenance.
DMS: DMS Mode, Management, Graphical Monitoring, and
Maintenance.
At startup, the Monitor > System > Information page displays.
The SM24TBT2DPxWeb UI management modules are described in the following chapters.

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Chapter 2 - System Configuration
This chapter describes basic configuration tasks including the System Information and other switch
management (e.g., Power, IP, Time, Account, Syslog, NTP.)
2-1 System
You can identify the switch by configuring the contact information, name, and location.
2-1.1 Information
Switch system contact information is provided here. To configure System Information in the web UI:
1. Click Configuration, System, Information.
2. Enter System Contact, System Name, and System Location information as desired.
3. Click Apply. The switch system information is displayed.
Figure 2-1.1: System Information Configuration page
Parameter descriptions:
System Contact: The textual identification of the contact person for this managed node, together with
information on how to contact this person. The allowed string length is 0 – 128 characters.
System Name: An administratively assigned name for this managed node. By convention, the system
name may be the node's fully-qualified domain name. The allowed string length is 0 – 128 characters.
System Location: The physical location of this node (e.g., telephone closet, 3rd floor). The allowed string
length is 0 – 128 characters.
Buttons
Apply: Click to save changes.
Reset: Click to undo any changes made locally and revert to previously saved values.

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2-1.2 Power Information (SM24TBT2DPA)
The SM24TBT2DPA Power Information page displays power related information for Power Supplies A and
B. Note that the Configuration > PoE > Power Information page also has power supply settings. The
screen below shows the SM24TBT2DPA with two PSU-820 power supplies installed:
Parameter descriptions:
Detected PSU: Displays the power sourcing unit that was detected (e.g., PSU-820 or None).
Power Good: Displays the power status (e.g., Good or Fail).
FAN Speed (RPM): Displays the fan speed in revolutions per minute (e.g., 2938 or 0).
Temperature (Degree C): Displays the current switch temperature in degrees Celsius.
Operating Mode: At the dropdown select Redundant or Boost, where:
Redundant: Only provide Primary Power Supply up to 820W when two PSU-820 power supply
modules are installed in the SM24TBT2DPA. If one power supply crashes, it can still provide enough
power for system operation and also PD’s operation. This is the default.
Boost: Power Supply up to 1640W when two PSU-820 power supply modules are installed in the
SM24TBT2DPA. When the application total PDs’ power use is over 820W, if one power supply
crashes, system will be automatically rebooted due to power loading influence. After the switch
finishes rebooting, it will only provide 820W to PDs.
Note that the Operating Mode setting also affects the Total PoE Available.
Buttons:
Apply: Click to save the changes.
Reset: Click to undo any changes made locally and revert to previously saved values.
Auto-refresh: Check this box to refresh the page automatically every 3 seconds.
Refresh: Click to refresh the page immediately.

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2-1.2 Power Information (SM24TBT2DPB or DPB-2X)
The SM24TBT2DPB Power Information page displays power related information for Power Supplies A and
B. Note that the Configuration > PoE > Power Information page also has power supply settings.
The SM24TBT2DPB ships with one PS-ACDC-1200 power supply, which lets it supply up to 90 Watts per
port. The SM24TBT2DPB-2XPS, or SM24TBT2DPB with a second power supply added, can provide full
PoE++ output on all 24-ports with its two hot-swappable PS-ACDC-1200 power supplies.
See the SM24TBT2DPB Install Guide for more Power Supply Operating Mode Settings information.
When SM24TBT2DPB Power Supply Operating Mode = Redundant Mode:
With Power Supply Operating Mode configured as “Redundant” Mode, the two power supplies are
mutually redundant. If one of the power supplies fails, the other power supply can keep the system
working normally.
The PoE maximum output power of the two power supplies cannot be aggregated. The PoE maximum
output Power Budget in “Redundant” Mode is equal to the PoE Budget of a single power supply.
WithPower Supply Operating Mode set to Boost Mode:
a. When Power Supply Operating Mode is set to “Boost” mode, the power supply redundancy function will
be disabled. If one of the power supplies fails, and the PoE power consumption is over the other power
supply’s Max. PoE output power capability, the power supply will overload and shutdown this PoE switch.
b. The PoE maximum output power of the two power supplies can be aggregated. The PoE Max. PoE
output Power Budget in Boost Mode is equal to the Power Supply A + Power Supply B.
SM24TBT2DPB-2XPS Power Supply Operating Mode = Redundant Mode (default):

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SM24TBT2DPB-2XPS Power Supply Operating Mode = Boost Mode Information:
Buttons:
Apply: Click to save the changes.
Reset: Click to undo any changes made locally and revert to previously saved values.
Auto-refresh: Check this box to refresh the page automatically every 3 seconds.
Refresh: Click to refresh the page immediately.

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2-1.4 IP
The IPv4 address for the switch can be obtained via DHCP Server for VLAN 1. To manually configure an
address, you must change the switch's default settings to values compatible with your network.
You may also need to establish a default gateway between the switch and management station(s) that
exist on another network segment.
Configure the switch-managed IP information on this page (IP basic settings, control IP interfaces and
IP routes). The maximum number of interfaces supported is 8 and the maximum number of routes is 32.
See Appendix A – DHCP Per Port on page 371 for more DHCP Per Port information.
Web Interface
To configure IP address parameters in the web UI:
1. Click Configuration, System, IP.
2. Click Add Interface then you can create a new Interface on the switch.
3. Click Add Route then you can create a new Route on the switch.
4. Click Apply.
Figure 2-1.2: IP Configuration page