Cisco Cisco Expressway Maintenance Manual
Field
Description
Reachability
Indicates the results of the 8 most recent contact attempts between the Expressway and the NTP
server, with a tick indicating success and a cross indicating failure. The result of the most recent
attempt is shown on the far right.
server, with a tick indicating success and a cross indicating failure. The result of the most recent
attempt is shown on the far right.
Each time the NTP configuration is changed, the NTP client is restarted and the Reachability field
will revert to all crosses apart from the far right indicator which will show the result of the first
connection attempt after the restart. However, the NTP server may have remained contactable
during the restart process.
will revert to all crosses apart from the far right indicator which will show the result of the first
connection attempt after the restart. However, the NTP server may have remained contactable
during the restart process.
Offset
The difference between the NTP server's time and the Expressway's time.
Delay
The network delay between the NTP server and the Expressway.
Stratum
The degree of separation between the Expressway and a reference clock.
1
indicates that the NTP
server is a reference clock.
Ref ID
A code identifying the reference clock.
Ref time
The last time that the NTP server communicated with the reference clock.
Expressway Time Display and Time Zone
Local time is used throughout the web interface. It is shown in the system information bar at the bottom of the screen
and is used to set the timestamp that appears at the start of each line in the Event Log.
and is used to set the timestamp that appears at the start of each line in the Event Log.
Note that UTC timestamps are included at the end of each entry in the Event Log.
Internally, the Expressway maintains its system time in UTC. It is based on the Expressway's operating system time,
which is synchronized using an NTP server if one is configured. If no NTP servers are configured, the Expressway
uses its own operating system time to determine the time and date.
which is synchronized using an NTP server if one is configured. If no NTP servers are configured, the Expressway
uses its own operating system time to determine the time and date.
Specifying your local Time zone lets the Expressway determine the local time where the system is located. It does this
by offsetting UTC time by the number of hours (or fractions of hours) associated with the selected time zone. It also
adjusts the local time to account for summer time (also known as daylight saving time) when appropriate.
by offsetting UTC time by the number of hours (or fractions of hours) associated with the selected time zone. It also
adjusts the local time to account for summer time (also known as daylight saving time) when appropriate.
Configuring the Login Page
The Login page configuration page (System > Login page) is used to specify a message and image to appear on the
login page.
login page.
The Welcome message title and text appears to administrators when attempting to log in using the CLI or the web
interface.
interface.
You can upload an image that will appear above the welcome message on the login page when using the web
interface.
interface.
■
Supported image file formats are JPG, GIF and PNG.
■
Images larger than 200x200 pixels will be scaled down.
Note that this feature is not configurable using the CLI.
Configuring External Manager Settings
The External manager page (System > External manager) is used to configure the Expressway's connection to an
external management system.
external management system.
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Cisco Expressway Administrator Guide
Network and System Settings