Grandstream Networks GXP-2000 - Manual (Page 41)

GXP-2000 User Manual
Grandstream Networks, Inc.
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TFTP checking is only performed during the initial power up. If the configured TFTP
server is found and a new code image is available, the GXP-2000 will attempt to
retrieve the new image files by downloading them into the GXP-2000’s SRAM. During
this stage, the GXP-2000’s LEDs will blink until the checking/downloading process is
completed. Upon verification of checksum, the new code image will then be saved into
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.