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тАО09-19-2005 06:58 PM
тАО09-19-2005 06:58 PM
Is it only way to upgrade network devices firmware by TFTP?
Why does many network devices support firmware upgraded by TFTP file transfer protocol through the Ethernet network?
2 REPLIES 2
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тАО09-19-2005 07:06 PM
тАО09-19-2005 07:06 PM
Re: Is it only way to upgrade network devices firmware by TFTP?
Newer firmware do support SFTP and FTP.
Not sure why it all started with TFTP though, could be an interesting historical story!
Not sure why it all started with TFTP though, could be an interesting historical story!
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тАО09-19-2005 07:53 PM
тАО09-19-2005 07:53 PM
Re: Is it only way to upgrade network devices firmware by TFTP?
Most network devices started using TFTP (Trivial File Transfer Protocol) a long time ago because it is so simple to implement and can easily fit into the boot loader.
This was back when memory was still expensive and you couldn't afford to put multiple software images in the box. Since TFTP can reside in the boot loader, this allows upgrading, even if main image is bad.
Nowaday's it has become standard expectation.
Note: TFTP is UDP based and therefore does not require a full TCP/IP stack.
ProCurve Switches also support software upgrade with SFTP and SCP, or over an RS-232 cable with Xmodem.
This was back when memory was still expensive and you couldn't afford to put multiple software images in the box. Since TFTP can reside in the boot loader, this allows upgrading, even if main image is bad.
Nowaday's it has become standard expectation.
Note: TFTP is UDP based and therefore does not require a full TCP/IP stack.
ProCurve Switches also support software upgrade with SFTP and SCP, or over an RS-232 cable with Xmodem.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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