05-30-2013 12:07 PM - edited 03-07-2019 01:39 PM
I just installed a refurb'd 3560 48 port POE switch and configured all ports on VLAN100. All Polycom IP 430 phones (with power adapter and without power adapter) constantly reboot every couple minutes. Any Cisco 7960 phone does not constantly reboot and works correctly. When I plug a small unmanaged switch into a 3560 port and then plug the Polycom phone into the unmanaged switch powering the phone with a power adapter, the phone works correctly. So it seems that the 3560 is causing the Polycom to reboot. Any ideas on how to fix??
05-30-2013 12:17 PM
Hi Tim, try setting the port manual instead of auto.
-Tom
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05-30-2013 12:47 PM
This is what I did:
switch#config terminal
switch(config)#interface fastethernet0/18
switch(config)#power inline static max 7000
switch(config)#end
I ran show inline power and saw that port 18 was set to static at 7W. I plugged in the phone and it continued it's reboot cycle.
Any other suggestions?
05-30-2013 02:42 PM
int fa0/18
speed 100
duplex full
Also try to 10 half
speed 10
duplex half
-Tom
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