PoE devices not start after spanning tree is triggered

Hello everyone,

I have a problem with PoE / spanning tree. When I use spanning tree in flat mode, my PoE devices do not start anymore, if there was a loop and the spanning tree protocol was triggered. Currently I am forced to temporarily turn off spanning tree, which is of course not ideal.

Below here is my example script:

""" ! Chassis: system name "Switch_1" system contact "Everyname" system location "Not_Here"

password switch 123456789 123456789

! Configuration: configuration error-file-limit 2

! Capability Manager: ! Virtual Flow Control: ! Interface: ! Port_Manager: ! VLAN:

! VLAN Main: vlan 20 admin-state enable vlan 20 name "Main" vlan 20 members port 1/1/1-2 untagged vlan 20 members port 1/1/3-28 tagged

! VLAN Second: vlan 30 admin-state enable vlan 30 name "Second" vlan 30 members port 1/1/1-2 tagged vlan 30 members port 1/1/3-24 untagged vlan 30 members port 1/1/25-28 tagged

! OTHER VLAN: vlan 1 name "managment" vlan 140 name "tele" vlan 150 name "sys"

! Spanning Tree: spantree mode flat spantree protocol mstp

! DA-UNP: ! Bridging: ! Port Mirroring: ! IP: no ip interface "management" ip interface "Main" ifindex 3 ip interface "Second" address 20.20.1.211 mask 255.255.255.0 vlan 30 ifindex 4

! IPMS: ! AAA: aaa authentication console "local"

! NTP: ntp server pool.ntp.org ntp client admin-state enable

! QOS: ! Policy Manager: ! LLDP: ! Session Manager:

! Web: ! Trap Manager: ! Health Monitor: ! System Service: ip name-server 9.9.9.9 ip domain-lookup system timezone CET

! SNMP: ! IP Route Manager: ! LAN Power:

lanpower slot 1/1 service start lanpower slot 1/1 fpoe enable

! DHCP Snooping: ! OVC: ! IP DHCP RELAY: ! MGMT AGENT:

write memory copy running certified write memory flash-synchro """

Look forward to hearing from you people, Yannick

Sorry I think that is better to read!

Below here is my example script:

! Chassis: system name "Switch_1" system contact "Everyname" system location "Not_Here"

password switch 123456789 123456789

! Configuration: configuration error-file-limit 2

! Capability Manager: ! Virtual Flow Control: ! Interface: ! Port_Manager: ! VLAN:

! VLAN Main: vlan 20 admin-state enable vlan 20 name "Main" vlan 20 members port 1/1/1-2 untagged vlan 20 members port 1/1/3-28 tagged

! VLAN Second: vlan 30 admin-state enable vlan 30 name "Second" vlan 30 members port 1/1/1-2 tagged vlan 30 members port 1/1/3-24 untagged vlan 30 members port 1/1/25-28 tagged

! OTHER VLAN: vlan 1 name "managment" vlan 140 name "tele" vlan 150 name "sys"

! Spanning Tree: spantree mode flat spantree protocol mstp

! DA-UNP: ! Bridging: ! Port Mirroring: ! IP: no ip interface "management" ip interface "Main" ifindex 3 ip interface "Second" address 20.20.1.211 mask 255.255.255.0 vlan 30 ifindex 4

! IPMS: ! AAA: aaa authentication console "local"

! NTP: ntp server pool.ntp.org ntp client admin-state enable

! QOS: ! Policy Manager: ! LLDP: ! Session Manager:

! Web: ! Trap Manager: ! Health Monitor: ! System Service: ip name-server 9.9.9.9 ip domain-lookup system timezone CET

! SNMP: ! IP Route Manager: ! LAN Power:

lanpower slot 1/1 service start lanpower slot 1/1 fpoe enable

! DHCP Snooping: ! OVC: ! IP DHCP RELAY: ! MGMT AGENT:

write memory copy running certified write memory flash-synchro

Look forward to hearing from you people, Yannick