Cisco Cisco Expressway Maintenance Manual
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 Expressway.
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 Expressway.
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
Expressway without having physical access to the hardware.
Expressway without having physical access to the hardware.
Caution:
do not restart, reboot or shut down the Expressway 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 Expressway application software, but not the operating system or
hardware. A restart takes approximately 3 minutes.
hardware. 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 Expressway 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.
until each peer has restarted before restarting the next peer.
Rebooting
The reboot function shuts down and restarts the Expressway application software, operating system and hardware. A
reboot takes approximately 5 minutes.
reboot 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.
Effect on active calls
Any of these restart options will cause all active calls to be terminated. (If the Expressway is part of a cluster, only
those calls for which the Expressway is taking the signaling will be terminated.)
those calls for which the Expressway is taking the signaling will be terminated.)
For this reason, the System status section displays the number of current calls 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.
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.
If Mobile and remote access is enabled, the number of currently provisioned sessions is displayed (Expressway-C
only).
only).
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Cisco Expressway Administrator Guide
Maintenance