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VIP User’s Manual
Command Line Interface
59
Chapter 7 Upgrading and resetting VIP
VIP-450 is able to have system functionality enhancement via software upgrade. This must be oper-
ated in upgrade mode. In firmware upgrade mode, limited commands allow users to read new revision
codes from a remote TFTP server and write into the built-in flash non-volatile storage.
To enter download mode, either Telnet or Console (RS-232) connection can take the job, and a TFTP
server is required by VIP to complete firmware upgrade process.
7.1 Firmware upgrade
To switch from normal operation mode to download mode, use the download CLI command.
ITG>
download
<Enter>
Note:
To be able to switch to download mode from Telnet session, TFTP loader on VIP must be ver-
sion 3.00 or higher. To upgrade to firmware version 3.03 or above, bootloader version 4.01 or
above is required.
After download command is inserted, VIP will terminate all on-going calls, reset and enter firmware
download mode. If you enter download mode from Telnet session. The Telnet session will be termi-
nated too. You need to re-connect to VIP from Telnet client to be able to access the firmware download
mode.
Before going any further, please note: NEVER, NEVER TURN OFF POWER while firmware up-
grade is working in progress!! (Please ensure power supply is stable before firmware upgrade is
executed.)
TFTP server is required to complete VIP series firmware upgrade process; there are various TFTP
server software on the market, please utilize the existing software or find a new one on the net to com-
plete upgrade process. (In this chapter, 3CDeamon TFTP server was installed for demonstration.)
TCP/IP Configuration:
Computer installed with TFTP server: 192.168.0.7
VIP: 192.168.0.1
Note: If a Telnet connection is built behind NAT environment, TCP port 69 MUST be reserved for data
communication.
Console connection
VIP
(192.168.0.1)
Computer equipped with TFTP
Server IP: 192.168.0.7