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Configuring and managing IP interfaces and services 139
Nortel WLAN—Security Switch 2300 Series Configuration Guide
Configuring and managing time parameters
You can configure the system time and date statically or by using Network Time Protocol (NTP) servers. In
each case, you can specify the offset from Coordinated Universal Time (UTC) by setting the time zone. You
also can configure WSS Software to offset the time by an additional hour for daylight savings time or similar
summertime period.
To statically set the time and date:
• Set the time zone (set timezone command)
• Set the summertime period (set summertime command)
• Set the time and date (set timedate command)
To use NTP servers to set the time and date:
• Set the time zone (set timezone command)
• Set the summertime period (set summertime command)
• Configure NTP server information (set ntp commands)
Setting the time zone
The time zone parameter adjusts the system date, and optionally the time, by applying an offset to UTC.
Note. Nortel recommends that you set the time and date parameters before you install
certificates on the WSS. If the switch’s time and date are incorrect, the certificate might not
be valid.
Generally, CA-generated certificates are valid for one year beginning with the system time
and date that are in effect when you generate the certificate request. Self-signed
certificates generated when running WSS Software Version 4.2.3 or later are valid for three
years, beginning one week before the time and date on the switch when the certificate is
generated.
If you do not install certificates, the switch automatically generates them the first time you
boot the switch with WSS Software Version 5.0 or later. The automatically generated
certificates are dated based on the time and date information present on the switch when it
was first booted with WSS Software Version 5.0.
Note. Configure summertime before you set the time and date. Otherwise,
summertime’s adjustment of the time will make the time incorrect, if the date is within the
summertime period.