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The unknown muticast traffic used by OSPF routing protocol doesn't pass the OLT

Publication Date:  2012-07-25 Views:  47 Downloads:  0
Issue Description
After upgrade in commercial network to MA5600V800R005C33B118 the unkwon unicast traffic(OSPF traffic) doesn't pass through OLT and ONT to the router connect in downstream.
Alarm Information
 No alarm appears
Handling Process
In new version of GPON MA5600V800R005C33B118 the unknown multticast traffic used by OSPF Protocol is not passed transparent in version MA5600V800R005C33B118 as in version MA5600V800R005C32B136 version.
Solution provided and implemented - configuration change(design change)
Solution:
- add QinQ attribute on the vlan(Ex. 111), that has the speciffic service-port
Ex: vlan attrib 111 q-in-q
- change the tag-transformation mode of that speciffic service(Ex: 1500) port to Transparent(Tag-transform mode  : transparent)
Ex: service-port 1500 tag-transform transparent 
After this configuration change the GPON medium will forward the unknown multicast traffic(used for OSPF protocol, for the Router in downlink - situated after ONT) using the speciffic service-port(Ex. 1500)
Root Cause
After upgrade in commercial network from MA5600V800R005C32B136 to MA5600V800R005C33B118 the unkwon unicast traffic(OSPF traffic) doesn't pass through OLT and ONT to the router connect in downstream.
Suggestions

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