Edge-Core ECS4620-28T Quick Start Manual page 918

Chapter 1
| Initial Switch Configuration
Setting the System Clock
Setting the System Clock
Setting the Time
Manually
subnet 192.168.255.0 netmask 255.255.255.0 {
range 192.168.255.160 192.168.255.200;
option routers 192.168.255.101;
option tftp-server-name "192.168.255.100"; #Default Option 66
option bootfile-name "bootfile";
}
class "Option66,67_1" {
two
match if option vendor-class-identifier = "ecs4620-28t.cfg";
option tftp-server-name "192.168.255.101";
option bootfile-name "test";
}
Note: Use "ecs4620-28t.cfg" for the vendor-class-identifier in the dhcpd.conf file.
Simple Network Time Protocol (SNTP) or Network Time Protocol (NTP) can be used
to set the switch's internal clock based on periodic updates from a time server.
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. If
the clock is not set manually or via SNTP or NTP, 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.
The switch also supports the following time settings:
◆
Time Zone – You can specify the offset from Coordinated Universal Time (UTC),
also known as Greenwich Mean Time (GMT).
◆
Summer Time/Daylight Saving Time (DST) – In some regions, the time shifts by
one hour in the fall and spring. The switch supports manual entry for one-time
or recurring clock shifts.
To manually set the clock to 14:11:36, April 1st, 2013, enter this command.
Console#calendar set 14 11 36 1 April 2013
Console#
To set the time zone, enter a command similar to the following.
Console(config)#clock timezone Japan hours 8 after-UTC
Console(config)#
#DHCP Option 60 Vendor class
– 88 –
#Default Option 67