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DGS-3100 Series Gigabit Stackable Managed Switch User Manual
Dual Image Services
The device contains two software images in its flash memory, one is for reboot and the other one is for backup. When a
software download is successfully completed, the new image automatically becomes the new reboot file, unless the user
manually configures the other file to be active. In a stacked system, the user can define the active image file for every unit in
the stack.
When the user is downloading a new image, it will always be downloaded to the location of the second image. It means that
if image1 is the currently running image, the new firmware will be always downloaded as image2, nothing else will
happened untill the next reboot.
By default, the newly downloaded image will be marked as the next image which will run after the reboot. However, the
user can identify the next image which will run after reboot by viewing the page: ‘Dual Image Services/Firmware
Information’ and change the next image that will run after reboot if user config the page: ‘Dual Image Services/Config
Firmware Image’.
This feature includes two screens:
Firmware InformationConfig Firmware Image
Firmware Information
The Firmware Information Page contains information about the image files stored for the device, or in case of a stacked
system, for all devices in the stack. To view the list of device images:
Click Configuration > Dual Image Services > Firmware Information. The Firmware Information Page opens:
Figure 2-20 Firmware Information Page
The Firmware Information Page contains the following fields:
Field Description
Unit
Displays the stacking member for which the firmware image information is displayed.
Image
Each device has two image files, one for reboot and one for backup. Upon software
upgrade download, the downloaded image file is designated for reboot, although users
can modify this in the Config Firmware Image page.
57
- User Manual 1
- Table of Contents 3
- Preface 7
- System Overview 8
- Viewing the Device 8
- Device Management Methods 9
- User Guide Overview 9
- Intended Audience 9
- Notes, Notices, and Cautions 10
- Safety Cautions 11
- GETTING STARTED 15
- Downloading Software 16
- Set Terminal Baud-Rate 16
- Defining Stacking Units 17
- Using the Tool Menu 21
- Resetting the Device 23
- Downloading the Firmware 24
- Rebooting the System 26
- Viewing Device Information 29
- Defining System Information 31
- Defining IP Addresses 32
- Managing Stacking 33
- Assigning Unit IDs 34
- Stack Startup Process 35
- Stack Resiliency 37
- Stack Management Examples 38
- Dividing Stacks 40
- Merging Stacks 42
- Stacking Cable Failure 42
- Configuring Stacking 44
- Defining Ports 45
- Viewing Port Properties 47
- ARP Settings 48
- Configuring User Accounts 49
- Managing System Logs 51
- Configuring SNTP 53
- Configuring SNMP 59
- Defining SNMP Views 60
- Defining SNMP Groups 61
- Defining SNMP Users 63
- Defining SNMP Communities 65
- Defining SNMP Host Table 66
- Defining SNMP Engine ID 68
- Enabling SNMP Traps 69
- DHCP Auto Configuration 70
- Dual Image Services 71
- Config Firmware Image 72
- Telnet Setting 73
- CONFIGURING L2 FEATURES 74
- Enabling Jumbo Frames 75
- Configuring VLANs 76
- 802.1Q VLAN Tags 78
- Port VLAN ID 79
- Tagging and Untagging 79
- Ingress Filtering 79
- Default VLANs 80
- VLAN and Trunk Groups 80
- VLAN Status 80
- Defining VLAN Properties 81
- Configuring GVRP 83
- Defining Trunking 85
- Traffic Segmentation 87
- Configuring LACP 88
- Defining IGMP Snooping 89
- Defining MLD Snooping 93
- Configuring Port Mirroring 97
- Configuring Spanning Tree 99
- Defining STP Port Settings 102
- Defining Unicast Forwarding 107
- Configuring LLDP 111
- Defining LLDP Port Settings 112
- Configuring 1p 123
- Understanding QoS 125
- Defining Bandwidth Settings 126
- Configuring Storm Control 128
- SECURITY FEATURES 133
- Configuring Trust Host 135
- Configuring Port Security 136
- Configuring Guest VLANs 138
- Defining RADIUS Settings 147
- Defining Login Methods 157
- Defining Enable Methods 159
- MONITORING THE DEVICE 162
- Viewing Stacking Information 163
- Viewing CPU Utilization 164
- Viewing Port Utilization 165
- View Table 166
- View Table 169
- Viewing ARP Table 172
- Viewing MLD Router Ports 173
- Viewing Router Ports 174
- Viewing Session Table 175
- Viewing System Log 180
- ACL Configuration Wizard 186
- Adding ACL Profiles 188
- Defining Level 2 ACL 190
- Defining Level 3 ACL 193
- Defining Access Rules Lists 201
- Finding ACL Rules 204
- Defining Time Ranges 207
- Product Registration 213
- LIMITED WARRANTY 214
- FCC Warning 217
- TECHNICAL SUPPORT 218
- Technical Support 218
- Technische Unterstützung 220
- Assistance technique 221
- Asistencia Técnica 222
- Supporto tecnico 223
- Pomoc techniczna 225
- Technická podpora 226
- Technikai Támogatás 227
- Teknisk Support 228
- Teknistä tukea asiakkaille 230
- Suomessa: 230
- Suporte Técnico 232
- Τεχνική Υποστήριξη 233
- Техническая поддержка 236
- 友訊科技 台灣分公司 239
- Dukungan Teknis 240
- International Offices 242
- ______________________ 244
- ____________ 244
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