Well, I do the following to cycle the PoE on my SG500-28P switch:
snmpset -v2c -c serverswitch POWER-ETHERNET-MIB::pethPsePortAdminEnable.1.61 i 2
sleep 10
snmpset -v2c -c serverswitch POWER-ETHERNET-MIB::pethPsePortAdminEnable.1.61 i 1
And then call that script from a Perl routine that runs in a cron job:
[...]
my $browser = LWP::UserAgent->new;
$browser->timeout(5);
my $url = 'http://:@garagecam.compusmiths.com/jpg/image.jpg';
my $response = $browser->get( $url );
if (!$response->is_success)
{
printf("No image from GarageCam, power cycling it!\n");
`/root/reboot-garagecam`;
}
Which power cycles it whenever it fails to supply an image to an HTTP request.
You seem to want to turn the port on and off, which is probably something similar but using the administrative up and down commands, IF-MIB::ifAdminStatus.portnumber
If you unplug the network cable and plug it back in, do you get the same result, o do you really have to reboot the switch?
Dunno how much Linux you can run on that NAS box, or if you have another box that's up all the time, or if you want to plug in something like a Raspberry Pi....
