Allied Telesis AT-SBx31CFC960 - Manual (Page 204)

Chapter 9: Powering On the Chassis
204
the active card does the inactive card begin to forward packets on
the backplane.
The phases of the initialization processes and their approximate times are
shown in Table 24.
Using the LEDs
to Monitor the
Initialization
Process
There are two ways to monitor the phases of the initialization process.
One way is to use the LEDs on the controller card. For phase 1, examine
the M/S LED in the System Status LEDs on the controller card. It flashes
amber while the card initializes its management software and changes to
solid green at the completion of the phase. If the chassis has two
controller cards, the M/S LED continues to flash amber on the inactive
card until the card has synchronized its database with the active controller
card.
To monitor phase 2, watch the SBx Status LEDs. There are twelve LEDs
(numbered 0 to 11), one for each slot. The LED for a slot flashes green
while the card initializes its management software and configures its
settings in accordance with the settings from the active controller card.
The LED changes to solid green when the corresponding line card
completes the initialization process and begins forwarding traffic.
If there are two controller cards, you can monitor phase 3 by viewing the
M/S LEDs on the controller cards. The LED on the active controller card
turns solid green when the card is finished initializing its management
Table 24. Switch Initialization Phases
Phase Description Config 1 Config 2 Config 3
1 The controller card initializes its
management software. 1 minute 1 minute 1 minute
2 The line cards reset, initialize their
management software, and receive their
configuration settings from the active
controller card. At the completion of this
phase, the Ethernet line cards begin to
forward traffic from their ports and the active
controller card forwards packets across the
backplane. If the chassis has two controller
cards, the inactive card does not begin to
forward traffic across the backplane until it
completes phase 3. 1 minute 1 minute 1 minute
3 The inactive controller card matches its
database and load files with the active
controller card. After completing this phase,
it joins the active card in forwarding traffic
on the backplane, increasing the backplane
bandwidth to 40Gbps for each line card slot. NA 30 seconds 30 seconds
to 3 minutes