Config state failed in Huawei ONT
Config state failed in Huawei ONT:
Today i will discuss how to solved Config state failed problem in Huawei ONT. When you found Config state : failed status in Huawei ONT by display ont info, then which type step taken you ? Don’t worry i will show how to solved this problem……………….

config state failed
This types of problem occur if line-profile should not configured properly, such as same GEM index is apply same PON port in different line-profile. Now show bellow step to solved that problem.
step-1: At first show all service port in that pon port & copy it.
Huawei-OLT(config)#display service-port port 0/4/2 ont 8
Now delete all service port by…………..
Huawei-OLT(config)#undo service-port 9041
Huawei-OLT(config)#undo service-port 3225
By same system undo all service-port. Here 9041 , 3225 is service port that you show in image
Step-2: Now need to delete that ONT by………..
Huawei-OLT(config-if-gpon-0/4)#ont delete 2 8
//here: 2=Port ID, 8=ONT ID
Step-3: Now delete ont-lineprofile by……………
Huawei-OLT(config)#undo ont-lineprofile gpon profile-id 500
//here: 500=line-profile ID
Now again create ont-lineprofile by fresh GEM index …………….
config
ont-lineprofile gpon profile-id 500 profile-name “Any-Name”
tcont 4 dba-profile-id 11 //11= dba profile
gem add 126 eth tcont 4 //gem=126, tcont=4
gem mapping 126 0 vlan 2816 //0=mapping index, gem index 126
commit
Step-4: Now again add ont , create native VLAN & create service port one by one…………
Finally your problem may be solved.
If any help please follow Huawei ONT register post.
how delet native vlan without delet ont profile??
you can not delete it, just modify by configure Native vlan 1 that port.