Fault Description Network topology ONU -> OLT (MA5600T) ->Siterouter S5328(2 uplink)--> DHCP server Fault description: ONU can not have the ip of DHCP server because of over limit of max ip of DHCP snooping on S5328 Alarm Information None Cause Max of DHCP snooping of siterouter huawei S5328 is 1024 ip(S5328> dis dhcp snooping | include max | Cur Dhcp max user number: 1024) So some OLT have than 700 acount, beside in 700 account have use the iptv or television is 500 account. so the ip dhcp snooping is 700( for vlan OMCI) +500=1200 ip > 1024 ip. Then, some account can not have dhcp ip snooping Procedure - We can move dhcp snooping from siterouter to OLT MA5600T, in MA5600T, we use add dhcp snooping server, so will  down the dhcp snoping of vlan OMCI for ONU.

Fault Description

Network topology ONU -> OLT (MA5600T) ->Siterouter S5328(2 uplink)--> DHCP server
Fault description: ONU can not have the ip of DHCP server because of over limit of max ip of DHCP snooping on S5328

Alarm Information

None

Cause

Max of DHCP snooping of siterouter huawei S5328 is 1024 ip(S5328> dis dhcp snooping | include max | Cur

Dhcp max user number: 1024)

So some OLT have than 700 acount, beside in 700 account have use the iptv or television is 500 account. so the ip dhcp snooping is 700( for vlan OMCI) +500=1200 ip > 1024 ip.

Then, some account can not have dhcp ip snooping

Procedure

- We can move dhcp snooping from siterouter to OLT MA5600T, in MA5600T, we use add dhcp snooping server, so will  down the dhcp snoping of vlan OMCI for ONU.

Nice things to learn!

Thank you, this is some solution i aldredy met in operator for gpon deploy.

Excellent experience! what is the process of trouble location? How to find the reason of the problem?

Yes,nice things to learn!

Good !!! If it is possible , I'd like to try.

Amazing! Detailed specification. very nice and valuable.

于晓晓 发表于 2016-09-01 15:43 Good !!! If it is possible , I'd like to try.

"So some OLT have than 700 acount," i want to know this 700 acount is for which service ,because there are 500 account is for iptv.

Good experience. Can I know how the operation is achieved? The DHCP snooping cannot be configured on MA5600T.