CORE-2(config)# show running-config 

Running configuration:

; J9850A Configuration Editor; Created on release #KB.16.05.0007
; Ver #12:08.1d.fb.7f.bf.bb.ff.7c.59.fc.7b.ff.ff.fc.ff.ff.3f.ef:f6
hostname "CORE-2"
module A type j9987a
telnet-server listen data
web-management listen data
ip default-gateway 10.5.9.1
ip ssh listen data
ip routing
interface A3
   disable
   exit
interface A5
   disable
   exit
snmp-server community "public" unrestricted
snmp-server listen data
oobm
   disable
   no ip address
   exit
router vrrp
   virtual-ip-ping
   ipv4 enable
   exit
vlan 1
   name "DEFAULT_VLAN"
   no untagged A4
   untagged A1-A3,A5-A24
   ip address 10.5.9.14 255.255.255.0
   ipv6 enable
   exit
vlan 20
   name "VRRP_VLAN_PEER"
   untagged A4
   ip address 20.0.0.2 255.255.255.0
   vrrp vrid 1
      virtual-ip-address 20.0.0.3
      priority 1
      enable
      exit
   exit
spanning-tree
spanning-tree root secondary
tftp server listen data
password operator

CORE-2(config)# show spanning-tree 

 Multiple Spanning Tree (MST) Information

  STP Enabled   : Yes
  Force Version : MSTP-operation
  IST Mapped VLANs : 1-4094
  Switch MAC Address : 3ca82a-2a4300    
  Switch Priority    : 32768
  Max Age  : 20
  Max Hops : 20   
  Forward Delay : 15

  Topology Change Count  : 1           
  Time Since Last Change : 15 mins     

  CST Root MAC Address : 3ca82a-36e400    
  CST Root Priority    : 0           
  CST Root Path Cost   : 20000       
  CST Root Port        : A1                 

  IST Regional Root MAC Address : 3ca82a-2a4300    
  IST Regional Root Priority    : 4096        
  IST Regional Root Path Cost   : 0           
  IST Remaining Hops            : 20          

  Root Guard Ports     : 
  Loop Guard Ports     : 
  TCN Guard Ports      : 
  BPDU Protected Ports :                                         
  BPDU Filtered Ports  :                                         
  PVST Protected Ports :                                         
  PVST Filtered Ports  :                                         

  Root Inconsistent Ports  :             
  Loop Inconsistent Ports  :             

                    |           Prio              | Designated        Hello         
  Port   Type       | Cost      rity State        | Bridge            Time PtP Edge
  ------ ---------- + --------- ---- ------------ + ----------------- ---- --- ----
  A1     100/1000T  | 20000     128  Forwarding   | 3ca82a-36e400     2    Yes No  
  A2     100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A3     100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A4     100/1000T  | 20000     128  Forwarding   | 3ca82a-2a4300     2    Yes Yes 
  A5     100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A6     100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A7     100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A8     100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A9     100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A10    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A11    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A12    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A13    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A14    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A15    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A16    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A17    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A18    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A19    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A20    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A21    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A22    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A23    100/1000T  | Auto      128  Disabled     |                   2    Yes No  
  A24    100/1000T  | Auto      128  Disabled     |                   2    Yes No