PC cant reach or ping another pc on same vlan with different ont

Hello, friend!

Please note that your attachments were not uploaded successfully, so I can't see your attachments.

Also, can you provide the model of your equipment?

You need to check whether the IP address and gateway IP address of the two ONTs and PCs are correctly configured and are in the same network segment.

Since I don't know the exact configuration of the device, according to your problem description, the possible causes are as follows:

1. The IP addresses are not in the same network segment.

2. The gateway configuration is incorrect.

3. The interface configuration on the OLT is incorrect.

4. Layer 2 isolation may exist.

Thanks!

sorry for attachments as you can see in pic and I checked
IP address and correct

Gate not need becasue they are in same network

how can I check layer 2 isolation ?

Hello, friend!

You can run the display vlan isolation command to query the global Layer 2 communication status.

huawei#display vlan-isolate                                              
      VLAN isolate is disable

In global config mode, run the vlan-isolate disable command to disable Layer 2 isolation.

Assume that the control board of the MA5680T/MA5683T/MA5608T is SCU, the service board is GPBC, and the global Layer 2 interworking function is enabled. To enable the global Layer 2 interworking function, do as follows:

huawei(config)#vlan-isolate disable     
Command:           
          vlan-isolate disable      
  It will take several minutes, and console may be timeout, please use command  
idle-timeout to set time limit          
  Are you sure to switch the VLAN isolate? (y/n)[n]:y

Thanks!

well thanks for answer but when I ran the commands "display vlan-isolate,vlan-isolate disable " is not work when I try to do it and after I check the vlan smart is isolate by default so need to disable to isolation of vlan smart
my config for two ont is :

vlan 925 smart
port vlan 925 0/3 3

interface gpon 0/0
ont add 1 0 sn-auth "4857544357xxxxx" omci ont-lineprofile-id 0 ont-srvprofile-id 0 desc "ONT A"
ont add 3 0 sn-auth "485754435DDxxxxx" omci ont-lineprofile-id 0 ont-srvprofile-id 0 desc "ONTB"

service-port 1 vlan 925 port 0/0/1 ont 0 multi-service user-vlan 925  tag-transform translate
service-port 2 vlan 925 port 0/0/3 ont 0 multi-service user-vlan 925  tag-transform translate

so is there anyway to remove isolation and make connectivity work in same vlan ?

Hello. friend!

Create service flows for Layer 2 interworking on the OLT so that data packets on different ONUs can be forwarded at Layer 2 based on the same VLAN on the OLT. You may also need to configure the protocol transparent transmission attribute based on the configuration information provided by you.

Create a VLAN service profile, enable the VLAN Layer 2 interworking function, configure the protocol transparent transmission attributes related to the Layer 2 interworking service, and bind the profile to VLAN 925.

huawei(config)#vlan service-profile profile-id 1

huawei(config-vlan-srvprof-1)#user-bridging enable   //mandatory

huawei(config-vlan-srvprof-1)#bpdu tunnel enable

huawei(config-vlan-srvprof-1)#ospf tunnel enable

huawei(config-vlan-srvprof-1)#rip tunnel enable

huawei(config-vlan-srvprof-1)#vtp-cdp tunnel enable

huawei(config-vlan-srvprof-1)#commit

huawei(config-vlan-srvprof-1)#quit

huawei(config)#multicast-unknown policy service-port 1 transparent

huawei(config)#multicast-unknown policy service-port 2 transparent

huawei(config)#vlan bind service-profile 925 profile-id 1

Note, however, that the preceding configuration has two prerequisites:

1. The SCUN control board is used.

2. Run the arp proxy disable command to disable the ARP proxy function because Layer 2 interworking is mutually exclusive with the ARP proxy function.

Thanks!