Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Results
A new section will appear showing the results of all of the queries. If successful, it will display the following
information:
information:
Query
type
type
The type of query that was sent by the VCS.
Name
The hostname contained in the response to the query.
TTL
The length of time (in seconds) that the results of this query will be cached by the VCS.
Class
IN
(internet) indicates that the response was a DNS record involving an internet hostname, server or IP
address.
Type
The record type contained in the response to the query.
Response
The content of the record received in response to the query for this Name and Type.
Restarting, Rebooting and Shutting Down
The Restart options page (Maintenance > Restart options) allows you to restart, reboot or shut down the VCS
without having physical access to the hardware.
without having physical access to the hardware.
Caution:
do not restart, reboot or shut down the VCS while the red ALM LED on the front of the unit is on. This
indicates a hardware fault. Contact your Cisco customer support representative.
Restarting
The restart function shuts down and restarts the VCS application software, but not the operating system or hardware.
A restart takes approximately 3 minutes.
A restart takes approximately 3 minutes.
A restart is typically required in order for some configuration changes to take effect, or when the system is being
added to, or removed from, a cluster. In these cases a system alarm is raised and will remain in place until the system
is restarted.
added to, or removed from, a cluster. In these cases a system alarm is raised and will remain in place until the system
is restarted.
If the VCS is part of a cluster and other peers in the cluster also require a restart, we recommend that you wait until
each peer has restarted before restarting the next peer.
each peer has restarted before restarting the next peer.
Rebooting
The reboot function shuts down and restarts the VCS application software, operating system and hardware. A reboot
takes approximately 5 minutes.
takes approximately 5 minutes.
Reboots are normally only required after software upgrades and are performed as part of the upgrade process. A
reboot may also be required when you are trying to resolve unexpected system errors.
reboot may also be required when you are trying to resolve unexpected system errors.
Shutting down
A shutdown is typically required if you want to unplug your unit, prior to maintenance or relocation for example. The
system must be shut down before it is unplugged. Avoid uncontrolled shutdowns, in particular the removal of power
to the system during normal operation.
system must be shut down before it is unplugged. Avoid uncontrolled shutdowns, in particular the removal of power
to the system during normal operation.
After the system has been shut down, the only way it can be restarted (unless it is a virtual appliance) is by pressing
the soft power button on the unit itself. You must therefore have physical access to the unit if you want to restart it
after it has been shut down.
the soft power button on the unit itself. You must therefore have physical access to the unit if you want to restart it
after it has been shut down.
Effect on active calls and registrations
Any of these restart options will cause all active calls and registrations to be terminated. (If the VCS is part of a
cluster, only those calls for which the VCS is taking the signaling will be terminated.)
cluster, only those calls for which the VCS is taking the signaling will be terminated.)
For this reason, the System status section displays the number of current calls and registrations, so you can check
these before you restart the system. If you do not restart the system immediately, you should refresh this page before
restarting to check the current status of calls and registrations.
these before you restart the system. If you do not restart the system immediately, you should refresh this page before
restarting to check the current status of calls and registrations.
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Cisco TelePresence Video Communication Server Administrator Guide
Maintenance