http://gponsolution.com/root-password-recovery-huawei-olt.html?fb_comment_id=1384546378250168_2804350612936397

  * 
  * OLT EPON:
  * service password-encryption
  * username admin password 0 first282220
  * username support password 0 support#@!
  * !
  * enable password 0 first282220 level 15
  * 
  * interface TGigaEthernet0/2
  *  description OLT_2-8PORT
  *  no spanning-tree
  *  spanning-tree bpdufilter enable
  *  switchport trunk vlan-allowed 10-499
  *  switchport mode trunk
  *  switchport pvid 4094
  *  loopback-detection enable
  *  loopback-detection control shutdown
  * 
  * 
  * 
  * interface EPON0/16
  *  description Komlapur-Area
  *  epon bind-onu mac 9404.9c6d.44c4 1
  *  epon bind-onu mac 74a0.6367.567b 2
  *  switchport trunk vlan-allowed 950-999
  *  switchport mode trunk
  *  switchport pvid 4094
  *  switchport protected 1
  * !
  * ip route default 10.255.150.9 
  * ip exf
  * !
  * ipv6 exf
  * !
  * !
  * ip http server
  * !
  * !
  * !
  * snmp-server community 0 c@#!CDRW&3 RW 
  * !
  * !
  * time-zone tz 6 0
  * 
  * OLT: GPON: 8 PORT
  * 
  * 
  * gpon profile onu-vlan 2551 id 3
  *  gpon-profile vlan mode tag
  *  gpon-profile vlan pvid 2551 0
  * !
  * gpon profile onu-vlan 2552 id 4
  *  gpon-profile vlan mode tag
  *  gpon-profile vlan pvid 2552 0
  * !
  * gpon profile onu-vlan 2501 id 5
  *  gpon-profile vlan mode tag
  *  gpon-profile vlan pvid 2501 0
  * 
  * interface TGigaEthernet0/4
  *  description TRUNK-100G-P3
  *  no spanning-tree
  *  spanning-tree bpdufilter enable
  *  switchport mode dot1q-tunnel-uplink
  *  no storm-control broadcast threshold
  *  no storm-control multicast threshold
  *  no storm-control unicast threshold
  * 
  * interface GPON0/1
  *  description GPON1
  *  gpon bind-onutype onutype-default-hgu precedence 127
  *  gpon bind-onutype onutype-default precedence 128
  *  gpon bind-onu sn HWTC:ABE4BE24 1
  *  gpon bind-onu sn HWTC:7B0F0D2B 85
  *  switchport mode trunk
  *  switchport pvid 2501
  *  switchport protected 1
  *  storm-control broadcast threshold 500
  *  storm-control multicast threshold 500
  *  storm-control unicast threshold 500
  *  gpon qos-mode virtual-port egress
  *  gpon transceiver Any-Reset-Preamble
  * 
  * 
  * !
  * ip route default 10.255.150.1 
  * ip exf    
  * !
  * ipv6 exf
  * !
  * ip telnet attack-defense
  * !
  * ip http server
  * !
  * !
  * snmp-server community 0 mtnglobal** RO 
  * snmp-server contact rajshahionline.com
  * snmp-server location Kushtia-MTN.com
  * !