Tsclockserver - Brocade Communications Systems A7533A - Brocade 4Gb SAN Switch Base Command Reference Manual

tsClockServer

Displays or sets the Network Time Protocol (NTP) Server addresses.
Synopsis tsclockserver [ipaddr [; ipaddr ...]]
Description Use this command to synchronize the local time of the Principal or Primary FCS switch to one or
more external NTP servers.
This command accepts a list of NTP server addresses. The NTP server addresses can be passed in
either IPV4 or IPV6 address format or as a DNS server name. When multiple NTP server addresses
are specified, tsClockServer sets the first reachable address for the active NTP server. The
remaining addresses are stored as backup servers, which can take over if the active NTP server
fails.
The time server daemon synchronizes fabric time by sending updates of the Principal or Primary
FCS local switch time periodically to every switch in the fabric. The time server daemon runs on all
switches in the fabric, but only the Principal switch (when FCS policy is not enabled) or the Primary
FCS switch (when FCS policy is enabled) connect to the NTP server (if specified) and broadcasts
time service updates.
All switches in the fabric maintain the current clock server IP address in nonvolatile memory. By
default, this value is LOCL., that is, the local clock of the Principal or the Primary FCS switch is the
default clock server. Changes to the clock server IP addresses on the Principal or Primary FCS
switch are propagated to all switches in the fabric.
Use this command without parameters to display the active NTP server and the configured NTP
server list. Specify the ipaddr operands to set the clock server IP addresses and enable fabric-wide
clock synchronization with the specified clock server. A value of LOCL may be specified as operand
to set the clock server back to default.
Each ipaddr specified should be the IP address of an NTP server and should be accessible from the
switch. The NTP server must support a full NTP client. When a clock server IP address other than
LOCL is specified but is not used by the fabric, a warning is displayed and logged. When a clock
server IP address other than LOCL is specified, the date command is restricted to display only.
Refer to the date command help for details.
Notes When FCS policy is enabled, this command can be run on all switches to view the clock server
value. However, you can only modify the clock server value from the Primary FCS switch.
The execution of this command is subject to Admin Domain restrictions that may be in place. Refer
to chapter 1, "Understanding Admin Domain Restrictions" and Appendix A, "Command Availability"
for details.
Operands This command has the following operand:
ipaddr
Examples To display the default clock server:
Fabric OS Command Reference
53-1000599-02
Specify the IP address of the NTP server or LOCL to use the local clock of the
Principal or Primary FCS switch as the clock server. If more than one IP
address is specified, separate the IP addresses by semicolons and enclose
the list in double quotation marks. This operand is optional; if omitted, the
current NTP server configuration is displayed. The default NTP server is LOCL.
tsclockserver
switch:admin>
LOCL
2
tsClockServer
677