Allied Telesis AT-S99 - Manual (Page 32)

Chapter 1: AT-CV5M02 Management Card
32
instructions can be found in “Restoring the Last Saved Configuration”
on page 181.
ˆ You have to configure a remote line card for remote peer management
before you can remotely restore a previous configuration. For
instructions, refer to “Configuring the AT-CM Media Converter Line
Cards for the OAM-based Features” on page 74.
Redundant
Management
Cards
When the AT-CV5000 Chassis has two management cards, the active
card responds to specific events by automatically copying its master
configuration file to the standby card. The file is sent over the backplane of
the chassis. In this manner, the standby card always has the same master
configuration file as the active card. Thus, if the active card is removed
from the chassis or fails, the standby card, when it transitions to the active
state, will operate with the same parameter settings as its predecessor.
Here are the events that cause an active management card to share its
master configuration file with a standby card:
ˆ When you issue one of the save commands, the active card updates
its master configuration file in flash memory and then transmits the
changes to the standby card.
ˆ When the AT-CV5000 Chassis is powered on, the two management
cards initialize their AT-S99 Management Software programs and
afterwards share their slot numbers to ascertain which is the active
card. The card in the lowered numbered slot than transitions to the
active state and automatically transmits its master configuration file to
the standby card.
ˆ If you install a second management card in an operating chassis, the
active management card waits for the new card to initialize its
management software and enter the standby state. Afterwards, it
transmits its master configuration file to the new card.
If you install a second management card during a local management
session, you’ll be able to watch the process as status messages similar to
those in Figure 1 are displayed on your screen.
Figure 1. Updating the Master Configuration File on a Standby Card
===========================================================
Active Management Card (AT-CV5M02) founded in Slot [ 2]
Standby Management Card (AT-CV5M02) founded in Slot [ 5]
===========================================================
-> Waiting for Standby to be Ready ... Please Wait ....... Not Ready
-> Waiting for Standby to be Ready ... Please Wait ....... Not Ready
-> Waiting for Standby to be Ready ... Please Wait ....... Not Ready
-> Waiting for Standby to be Ready ... Please Wait ....... Ready
<- Copy Configuration to Standby .... Please Wait ..078.. Succeeded