для Cisco Cisco Packet Data Gateway (PDG)

 

▄  SaMOG Administration Guide, StarOS Release 16  



 

The DIAMETER AAA server sends the APN information in the APN-Configuration AVP in DEA. This AVP 

may however be absent in case the AAA server authorizes only LBO, to indicate that any APN can be used for 
LBO for the subscriber. 



 

The operator can configure "local-offload" for each APN supporting LBO under the APN profile. However, the 

authorization from the AAA server will always be given preference over the local configuration. Local 
configuration will be used to take a decision when AAA server authorizes GTP as well as LBO for a call.  

The following table indicates different scenarios where the occurance of LBO is determined: 

Both GTP and LBO 
NOT supported 

— 

— 

Always an error condition 

Only GTP Supported 

No 

— 

Error Condition 

Yes 

— 

GTP Call setup with GGSN/P-GW 

Only LBO Supported 

No 

Yes 

LBO session established with the first APN with 
“local-offload” configured in local policy. 

No 

No APN configured in local 
policy 

Error Condition 

Yes 

No 

Error Condition 

Yes 

Yes 

LBO session established with received APN. 

Both GTP and LBO 
Supported 

No 

— 

Error Condition 

Yes 

No 

GTP session established with received APN. 

Yes 

Yes 

LBO session established with received APN.