User's Manual

ULP EMS Operator Guide Maintaining and Operating the ULP Network
On-Ramp Wireless Confidential and Proprietary 39 010-0045-00
3.6.1.2 AP Process Health
This type of alarm indicates that the AP and GW cannot communicate. This is due to the
following reasons:
1. The AP died. To diagnose the AP, complete these steps:
a. Log in to the AP web page:
https://<AP IP address>
b. From the AP web page, note the status of the AP.
c. From the EMS and/or AP web page, reboot Access Point.
2. The network connectivity between the AP and GW is broken. An operator should use
standard networking debugging tools to verify the availability of the backhaul connectivity
between the AP and GW. For example, the operator can ping the AP to validate that it is
available through the backhaul network. When re-establishing the backhaul connectivity,
the operator may need to contact the backhaul provider to help diagnose the issue.
3.6.1.3 AP Not Online
This type of alarm indicates that the AP is in an offline state due to an unplanned event.
NOTE:
This is not due to a backhaul outage, and the operator should not have to diagnose the
network connectivity.
This alarm can be investigated in the following ways:
1. From the EMS:
a. In the Devices->Access Point pane of any EMS screen, select the alarming AP. Explore
the state of the AP through the detailed AP listings.
b. After diagnosing the AP, the operator may need to reboot the AP from the EMS AP
detailed pages console.
2. From the AP web page:
NOTE:
In some cases, the EMS may not provide sufficient ways in which to diagnose the
problem.
a. Log in to the AP web page:
https://<AP IP address>
b. From the AP web page, determine the status of the AP.
The operator may need to reboot Access Point from the AP web page.
3.6.1.4 PPM Drift
NOTE:
The PPM drift alarm is a serious alarm that is not likely to be cleared without a service
call to On-Ramp Wireless. If this alarm has been detected, or if this alarm has been
cleared, call On-Ramp Wireless.