Configuring WLAN Service Monitoring Settings
Service Monitoring is a mechanism for
administrating external AAA server, captive portal server, access point adoption, and
DHCP server activity for WLANs. Service monitoring enables an administrator to better
notify users of a service‘s availability and make resource substitutions. Service
monitoring can be enabled and applied to log activity as needed for specific WLANs.
External services can be rendered unavailable due to any of the following
instances:
- When the RADIUS authentication server becomes unavailable. The RADIUS server
could be local or external to the controller, service platform or access
point.
- When an externally hosted captive portal is unavailable (for any reason)
- If an access point‘s connected controller or service platform becomes
unavailable.
- When a monitored DHCP server becomes unavailable.
To configure Service Monitoring settings:
-
Select to display a high-level display of the existing WLANs.
-
Click Add to create an
additional WLAN, or click Edit to modify the properties
of an existing WLAN.
-
Click Service
Monitoring.
-
Select AAA Server
monitoring to monitor a dedicated external RADIUS server and
ensure its adoption resource availability.
This setting is disabled by default.
-
Select Captive Portal External Server monitoring to
monitor externally hosted captive portal activity, and to set temporary and
restrictive user access to the controller or service platform managed network.
This setting is disabled by default.
-
Refer to the Adoption Monitoring field to set the WLAN‘s
adoption service monitoring configuration.
Enable |
Select this option to verify access points' adoption status
to their controllers or service platform. When the
connection is lost, captive portal users are automatically
migrated to the VLAN defined in the
VLAN field. This option is
disabled by default. |
VLAN |
Select the VLAN to which users are
migrated when an access point‘s connection to its adopting
controller or service platform is lost. The available range
is from 1 to 4,094. |
-
Refer to the DHCP Server Monitoring field to set the
WLAN‘s adoption service monitoring configuration.
Enable |
Select to enable monitoring of the
configured DHCP server. When the connection to the monitored
DHCP server is lost, all captive portal data users are
automatically migrated to the VLAN defined in the
VLAN field. |
VLAN |
Select the VLAN to which users are
migrated when the configured DHCP server becomes available.
The available range is from 1 to 4,094. |
CRM Name |
Enter the name of the DHCP server
to monitor for availability. When this DHCP server resource
becomes unavailable, the device falls back to the defined
VLAN. This VLAN has a DHCP server configured that provides a
pool of IP addresses and with a lease time less than the
main DHCP server. |
-
Refer to the DNS Server Monitoring field to set the
WLAN‘s adoption service monitoring configuration.
Enable |
Select to enable monitoring of the
configured DNS server. When the connection to the monitored
DNS server is lost, all captive portal data users are
automatically migrated to the VLAN defined in the
VLAN field. This option is
disabled by default. |
VLAN |
Select the VLAN to which users are
migrated when the configured DNS server becomes available.
The available range is from 1 to 4,094. |
CRM Name |
Enter the name of the DNS server
to monitor for availability. When this DNS server resource
becomes unavailable, the device falls back to the defined
VLAN. This VLAN has a DNS server configured that provides
DNS address resolution until the primary DNS server becomes
available. |
-
Click OK when completed to update this WLAN‘s service
monitor settings.
Click Reset to revert the screen to its last saved
configuration.