Stack Member Device Software Version Check And Automatic Upgrade; Stack System Configuration File; Stack System Active/Standby Changeover - Zte ZXR10 5900 Series User Manual

ZXR10 5900/5200 Series User Manual (Basic Configuration Volume)
from 0 to 255. The default is 255. Priority information of all stack
member devices can be viewed by show switch all-status.
The priority can be modified by nvram stack-member-priority.
It can not be valid until the device restarts.
Stack Member Device Software
Version Check and Automatic
Upgrade
The software version in each member of stack system should be
the same. When stack system starts and main device is elected,
software version number of each member device will be automat-
ically checked. If the version number of stack member is different
from that of main device , the main device will synchronize the
software to member device. After synchronizing, member device
will restart and join the stack system again.
It is recommended that the priority of the device with the high-
est software version is configured the highest. Therefore it can
be the main device and other member devices can automatically
upgrades the latest software.

Stack System Configuration File

The configuration file of stack system applies configuration file of
main device. The name of configuration file is stackcfg.dat. When
system starts, it reads configuration file from flash of main de-
vice and recovers according to the record of this configuration file.
When write is used, configuration file is not only saved in this
device but also synchronized to other devices, that is , the same
configuration file will be saved in flash of other devices. If member
device leaves it will automatically load this configuration file after
starting.
Stack System Active/Standby
Changeover
There is a main device and a standby device in stack system ( if
there is only one device, that is main device). The command can
be carried out in main device to configure the whole stack system.
Meanwhile these configure will be synchronized to standby device,
that is , the standby device will record these configuration. When
main device has running fault or leaves, standby device will be-
come main device and a new standby device will be elected from
the rest of member devices. Therefore stack system configuration
won't lost and the effect on traffic forwarding will be minimized.
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