MOE IP Phone not working

Publication Date:  2016-07-17 Views:  375 Downloads:  0
Issue Description

Face problem in MOE Cisco phone model (7960,7940) cant get the power from Huawei access switch S5700
 

The exist configuration:

#

interface GigabitEthernet1/0/0
description Access_port_Data-Voice_PP4
port link-type trunk
voice-vlan 464 enable
voice-vlan legacy enable
port trunk pvid vlan 364
port trunk allow-pass vlan 364 464
stp edged-port enable
#


 

Handling Process
  • We try to connect the IP phone direct to the access switch but still not work.
  • Try different device in same model, and still not working.
  • The switch S5700 PoE, support all PoE device as written in datasheet.


Root Cause

The commend poe legacy it will help to backwards compatiblity with 802.3af power standerd using by old Cisco IP phone. The port in the switch connect to the Cisco IP phone model (7960,7940) need to configure with to get the power:

#

poe legacy enable

#

Solution

Config all ports in access switch with the poe legacy enable in the accwss switch:

#

poe legacy enable

#

 

It will look like:

#

interface GigabitEthernet1/0/0
description Access_port_Data-Voice_PP4
port link-type trunk
voice-vlan 464 enable
voice-vlan legacy enable
port trunk pvid vlan 364
port trunk allow-pass vlan 364 464
stp edged-port enable
poe legacy enable
#

END