Sc Redundancy; Clock Control Application; Technical Overview; Figure 12-7: Ems Media Gateway Status Screen Showing Popup Menu - Nortel Media Gateway 3500 Installation, Operation And Maintenance Manual

IN the EMS, in addition to the status display of the Ethernet Switch boards, the user is
notified by the "operational info" alarm trap issued from the Active SC announcing the
message, "Network port 0 failed, start using network port 1". In addition, the Ethernet
Switch board is displayed as yellow indicating the appropriate "suspect" severity. To switch
the boards to their default positions via the EMS, right-click on the now Redundant (but
initially Active) Ethernet Switch board and from the popup menu, select the Align all
Boards To Me option. A Ethernet Switch board's yellow severity status can be cleared
from the popup menu, by selecting the Clear Severity option. Refer to the figure below.

Figure 12-7: EMS Media Gateway Status Screen Showing Popup Menu

12.4.3

SC Redundancy

The two SC boards operate as an Active/Standby pair. The background color of the active
board is dark and the Redundant is blue. To switchover between the two SCs, right-click on
the Active SC board and from the popup menu, select the Switch Over option.
12.5

Clock Control Application

12.5.1

Technical Overview

Installation, Operation, Maintenance Manual 114
Media Gateway 3500
Document # LTRT-90704