User manual

the Flash. If TFTP fails for any reason (e.g., TFTP server is not responding, there are no

code image files available for upgrade, or checksum test fails, etc), the GXP-2000 will

stop the TFTP process and simply boot using the existing code image in the flash.

TFTP process may take as long as 1 to 2 minutes over the Internet, or just 20+ seconds if

it is performed on a LAN. Users are recommended to conduct TFTP upgrade in a

controlled LAN environment if possible. For those who do not have a local TFTP server,

Grandstream provides a NAT-friendly TFTP server on the public Internet for firmware

upgrade. Please check the Services section of Grandstream’s Web site to obtain this

TFTP server’s IP address.

NOTE:

• When GXP-2000 boots up, it will send TFTP or HTTP request to download

configuration files, there are two configuration files, one is “cfg.txt” and the

other is “cfg000b82xxxxxx”, where “000b82xxxxxx” is the MAC address of the

GXP-2000. These two files are for initial automatically provisioning purpose

only, for normal TFTP or HTTP firmware upgrade, the following error messages

in a TFTP or HTTP server log can be ignored.

TFTP Error from [IP ADRESS] requesting cfg000b82023dd4 : File

does not exist

TFTP Error from [IP ADRESS] requesting cfg.txt : File does not

exist