LevelOne ProCon GSW-2692 User Manual Page 67
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Basic Configuration
3-31
3
Setting the System Clock
Simple Network Time Protocol (SNTP) allows the switch to set its internal clock
based on periodic updates from a time server (SNTP or NTP). Maintaining an
accurate time on the switch enables the system log to record meaningful dates and
times for event entries. You can also manually set the clock using the CLI. (See
“calendar set” on page 4-56.) If the clock is not set, the switch will only record the
time from the factory default set at the last bootup.
When the SNTP client is enabled, the switch periodically sends a request for a time
update to a configured time server. You can configure up to three time server IP
addresses. The switch will attempt to poll each server in the configured sequence.
Configuring SNTP
You can configure the switch to send time synchronization requests to time servers.
Command Attributes
• SNTP Client – Configures the switch to operate as an SNTP client. This requires
at least one time server to be specified in the SNTP Server field. (Default: Disabled)
• SNTP Poll Interval – Sets the interval between sending requests for a time update
from a time server. (Range: 16-16284 seconds; Default: 16 seconds)
• SNTP Server – Sets the IP address for up to three time servers. The switch
attempts to update the time from the first server, if this fails it attempts an update
from the next server in the sequence.
Web – Select SNTP, Configuration. Modify any of the required parameters, and click
Apply.
Figure 3-20 SNTP Configuration
- LevelOne 1
- Contents 14
- Chapter 1: Introduction 19
- Introduction 20
- System Defaults 23
- Connecting to the Switch 27
- Required Connections 28
- Stack Operations 29
- Basic Configuration 30
- Setting Passwords 31
- Setting an IP Address 31
- Initial Configuration 32
- Dynamic Configuration 32
- Community Strings 33
- Saving Configuration Settings 34
- Managing System Files 35
- Using the Web Interface 37
- Home Page 38
- Panel Display 39
- Main Menu 40
- Manual Configuration 49
- Using DHCP/BOOTP 50
- Managing Firmware 51
- Console Port Settings 56
- Telnet Settings 58
- Configuring Event Logging 60
- Remote Log Configuration 62
- Displaying Log Messages 63
- Resetting the System 66
- Setting the System Clock 67
- Setting the Time Zone 68
- User Authentication 71
- Configuring HTTPS 76
- Configuring the Secure Shell 78
- Generating the Host Key Pair 80
- Configuring the SSH Server 82
- Configuring Port Security 83
- Displaying 802.1X Statistics 90
- Access Control Lists 93
- Setting the ACL Name and Type 94
- Configuring a Standard IP ACL 95
- Configuring a MAC ACL 98
- Port Configuration 100
- Configuring the Switch 102
- Creating Trunk Groups 104
- Configuring LACP Parameters 109
- Displaying LACP Port Counters 111
- Configuring Port Mirroring 118
- Configuring Rate Limits 119
- Rate Limit Configuration 120
- Rate Limit Granularity 120
- Showing Port Statistics 121
- Address Table Settings 126
- Displaying the Address Table 127
- Changing the Aging Time 129
- Displaying Global Settings 130
- Configuring Global Settings 133
- Displaying Interface Settings 136
- VLAN Configuration 141
- Displaying Current VLANs 145
- Creating VLANs 147
- Private VLANs 153
- Configuring Private VLANs 155
- Associating VLANs 155
- Layer 2 Queue Settings 159
- Priority 161
- 13. CLI shows Queue ID 161
- Selecting the Queue Mode 163
- Layer 3/4 Priority Settings 164
- Mapping IP Precedence 165
- Mapping DSCP Priority 167
- Mapping IP Port Priority 168
- Mapping CoS Values to ACLs 169
- Multicast 171
- Multicast Filtering 173
- Accessing the CLI 179
- Console Connection 179
- Telnet Connection 179
- Command Line Interface 180
- Entering Commands 181
- Showing Commands 182
- Partial Keyword Lookup 183
- Using Command History 183
- Understanding Command Modes 183
- Exec Commands 184
- Configuration Commands 184
- Command Line Processing 186
- Command Groups 187
- Line Commands 188
- General Commands 197
- System Management Commands 202
- User Access Commands 203
- IP Filter Commands 206
- Web Server Commands 208
- Telnet Server Commands 211
- Secure Shell Commands 212
- Event Logging Commands 221
- SMTP Alert Commands 227
- Time Commands 231
- System Status Commands 235
- Frame Size Commands 242
- Flash/File Commands 243
- Authentication Commands 249
- RADIUS Client 251
- TACACS+ Client 254
- Port Security Commands 257
- 802.1X Port Authentication 259
- Access Control List Commands 267
- IP ACLs 268
- MAC ACLs 275
- ACL Information 280
- SNMP Commands 281
- Interface Commands 286
- Mirror Port Commands 297
- Rate Limit Commands 299
- Link Aggregation Commands 301
- Address Table Commands 311
- Spanning Tree Commands 315
- VLAN Commands 327
- Configuring VLAN Interfaces 329
- Displaying VLAN Information 334
- Priority Commands 346
- Multicast Filtering Commands 359
- IP Interface Commands 368
- Software Features 373
- Management Features 374
- Standards 374
- Management Information Bases 375
- Software Specifications 376
- Appendix B: Troubleshooting 377
- Using System Logs 378
- Glossary 379
- GSW-2692 390
- E072006-R01 390
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