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Page 31 / 140 Scroll up to view Page 26 - 30
GS108T Smart Switch Software Administration Manual
Managing System Settings
3-3
v1.0, December 2007
•
IP Address
. Shows the IP address of the switch.
•
Subnet mask
. Shows the subnet mask of the IP address.
•
Default gateway
. Shows the IP address of the gateway for the remote manager.
•
MAC address
. Shows the MAC address of the switch.
•
System UpTime
. Shows the switch up time after bootup.
3.
Click
Apply
if you have made any change to the System Name, System Location, or Idle
Timeout setting.
4.
View the system hardware and software version information under the Versions heading:
•
Model Name
.
Shows the switch model name.
•
Hardware Version
. Shows the switch hardware version.
•
Boot Version
. Shows the boot code version of the switch.
•
Software Version
. Shows the software version of the switch.
IP Configuration
The IP Configuration screen lets you set the system IP address source and optional management
VLAN:
1.
Select System > Management > IP Configuration. A screen similar to the following displays.
Figure 3-2
Page 32 / 140
GS108T Smart Switch Software Administration Manual
3-4
Managing System Settings
v1.0, December 2007
2.
Select the appropriate radio button for your IP configuration:
•
Get Dynamic IP from DHCP Server
. Specifies that the switch must obtain the IP address
through a DHCP server.
•
Get Dynamic IP from BootP Server
. Specifies that the switch must obtain the IP address
through a BootP server.
•
Static IP Address
. Specifies that the IP address, subnet mask, and default gateway must
be manually configured. Enter this information in the fields below this radio button.
3.
Select the management VLAN ID (the default is 0 for all VLANs).
The management VLAN is used to establish an IP connection to the switch from a workstation
that is connected to a port in the VLAN. If not specified, the active management VLAN ID is
0 (default), which allows an IP connection to be established through any port.
When the management VLAN is configured, an IP connection can be made only through a
port that is part of the management VLAN. It is also mandatory that the port VLAN ID (PVID)
of the port to be connected in that management VLAN be the same as the management
VLAN ID.
•
Only one management VLAN can be active at a time.
•
When a new management VLAN is configured, connectivity through the existing
management VLAN is lost.
•
The management station should be reconnected to the port in the new management
VLAN.
4.
Click
Apply
to confirm any settings changes.
Time
Simple Network Time Protocol (SNTP) synchronizes time across the network.
•
The time interval at which the switch polls for time is called the
polling time
and is set to
30 minutes. As long as the NTP/SNTP server is reachable, the switch polls for time every
30 minutes and updates the system time.
Note:
Make sure that the VLAN to be configured as the management VLAN exists.
And make sure that the PVID of at least one port that is a port of the VLAN is
the same as the management VLAN ID.
Page 33 / 140
GS108T Smart Switch Software Administration Manual
Managing System Settings
3-5
v1.0, December 2007
•
The time-out period is the time duration for which the switch waits for a reply from the server.
Time-out is set to 15 seconds. If two NTP/SNTP servers are specified and neither one is
available, then the total time-out is 30 seconds.
You can specify whether to set the system time manually or with an SNTP server:
1.
Select System > Management > Time. A screen similar to the following displays.
.
2.
Select a Clock Source:
•
Local
. Date and time are calculated through a local clock source that is based on CPU
cycles. Go to
step 3
.
•
SNTP
. Date and time are selected through an SNTP server. Go to
step 5
3.
When setting the date and time through a local clock source, enter the following:
a.
Date
. Specify the date to which the switch is set in the DD/MM/YYYY format.
b.
Local Time
. Specify the switch time in the HH:MM:SS format.
4.
Time Zone
. Select the local time zone in which the switch is operating.
5.
When setting the date and time through an SNTP server, enter the following settings:
a.
In the
NTP Server IP - 1
field, specify the IP address of the primary NTP/SNTP server
for the switch to use when synchronizing time.
b.
In the
NTP Server IP - 2
field, specify the IP address of alternate NTP/SNTP server for
the switch to use when synchronizing time.
6.
Click
Apply
to confirm any settings changes.
Figure 3-3
Page 34 / 140
GS108T Smart Switch Software Administration Manual
3-6
Managing System Settings
v1.0, December 2007
SNMP
The SNMP screen lets you specify a Simple Network Management Protocol (SNMP) management
station and related SNMP settings, and set an authentication fail trap.
SNMP V1/V2
The SNMP V1/V2 screen lets you limit the IP addresses that can access the management
information base (MIB) of the switch and to which the switch sends the traps. The switch responds
only to requests from management stations that have their IP address in the management station
list. You can also select the traps that the switch sends to the management station after a trap event.
The setting of a management station is not active until you set the
Status
field to
Enable
. To
configure management stations:
1.
Select System > SNMP > SNMP V1/V2. A screen similar to the following displays.
.
2.
Under Community Configuration & Trap Flags, view or specify the SNMP settings for up to
four management stations:
•
Management Station
. Sets the community's management station IP address.
•
Community String
. Sets the community string. The community string provides an
authentication mechanism to the SNMP protocol. The switch processes requests from the
management station only if the community string in the request packet matches the
community string that is specified in the
Community String
field.
•
Access Mode
. Sets the access privilege (Read Only or Read Write) state of the
management station.
•
Trap (T2)
. Enables the switch to generate an SNMP trap when it reboots.
Figure 3-4
Page 35 / 140
GS108T Smart Switch Software Administration Manual
Managing System Settings
3-7
v1.0, December 2007
•
Trap (T3)
. Enables the switch to generate an SNMP trap when one of its ports changes its
link status.
•
Status
. Enables or disables the management station.
3.
If you have added a management station, click
Add
. If you have selected one or more
management stations for removal, click
Remove
. If you have made any changes to an existing
management station, click
Apply
.
4.
Under Authentication Fail Trap, select the
Enable Authentication Fail Trap
check box to
enable the switch to generate an SNMP trap for all management stations when a computer
attempts to gain access to the switch through SNMP but the computer’s IP address is not in the
SNMP management station table.
5.
If you have made changes to the
Enable Authentication Fail Trap
check box, click
Apply
.
LLDP
Link Layer Discovery Protocol (LLDP) is a one-way protocol that provides the following
capabilities:
•
An LLDP agent can transmit information about the capabilities and current status of the switch
associated with its MAC Service Access Point (MSAP) identifier.
•
An LLDP agent can also receive information about the capabilities and current status of the
switch associated with a remote MSAP identifier.
LLDP agents do not solicit information from other LLDP agents using LLDP.
Basic—LLDP Configuration
The Basic LLDP Configuration screen lets you to enable or disable LLDP and configure the basic
LLDP settings:
1.
Select System > LLDP > Basic > LLDP Configuration. A screen similar to the following
displays.

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