Cisco Cisco Packet Data Interworking Function (PDIF) Note De Mise
S-GW Changes in Release 15.0
S-GW Enhancements for February 27, 2015 ▀
Cisco ASR 5x00 Release Change Reference ▄
545
New Behavior: The Bearer Context IE in Indirect Data Forwarding Tunnel Response from the Source SGW to the
Source MME will now contain both instances 4 and 5.
Source MME will now contain both instances 4 and 5.
Important:
As per 3GPP TS 29.274 V11.12.0, Table 7.2.19-2, Note 2, for UL data forwarding if the S-GW does
not have enough information to decide which of the F-TEID instance from S1-U and S-GW to include in the message, it
may include both of them. As a result, the S-GW will send both instances 4 and 5 in the Response Message.
may include both of them. As a result, the S-GW will send both instances 4 and 5 in the Response Message.
Customer Impact: Indirect Data Forwarding Tunnel Response messages from the S-GW would carry both instances 4
and 5 from the Source S-GW to the Source MME. So, that MME supports the messages.
and 5 from the Source S-GW to the Source MME. So, that MME supports the messages.