User manual

Configuration
Downloading New Software
6-30 July 2004 Wide Bank 28 DS3 - Release 2.4
.
Figure 6-7 Downloading Code to Controller B RAM
Do you want to Program the FLASH now (Y/N)?
6. Enter Y.
Please wait until this card comes alive (approximately 1 minute).
Switching control to Standby Controller and closing Telnet session
Please re-establish Telnet session
The Wide Bank again initiates a switch of Controllers, drops the Telnet connection, then executes
the commands necessary to cause the firmware just downloaded to RAM to be programmed into
the FLASH on the board that used to be active (Controller card B). During this programming, the
traffic is carried by the primary Controller card (A), which is now active and running the new code.
After the download is completed, log in to Controller card A.
FLASH
MEM
Controller
A
Transfer
Control
FLASH
MEM
Controller
B
Load Command causes new code to
be downloaded to Controller B memory.
Controller B maintains control and still handles all traffic.