Cisco Cisco Packet Data Interworking Function (PDIF)
MME Changes in Release 16
MME Enhancements for 16.0 ▀
Release Change Reference, StarOS Release 16 ▄
287
The MME provides a mechanism to define the number of authentication vectors (AVs) that can be requested from the
HSS/HLR in an Authentication Info Request (AIR) message. New vectors are fetched when no more vectors are
available.
HSS/HLR in an Authentication Info Request (AIR) message. New vectors are fetched when no more vectors are
available.
Previous Behavior: Prior to Release 16, the maximum configurable number of authentication vectors to be retrieved
from HSS/HLR was 3.
from HSS/HLR was 3.
New Behavior: The new maximum configurable number of authentication vectors to be retrieved from the HSS/HLR
is 5.
is 5.
Command Changes
auth-request
The value range for the
num-auth-vectors
keyword of this command has been extended from 3 to 5.
configure
context context_name
hss-peer-service service_name
auth-request num-auth-vectors num
default auth-request num-auth-vectors
end
Notes:
num
must be an integer from 1 to 5.
default
returns the AV configuration to 1.
CSCuh35890 - MME Optimization of S1 reset handling in MME
Feature Changes
Optimization of S1 Partial Reset Handling
Previous Behavior: When the MME recieved a Partial Reset message from the eNodeB which contained more than
one UE Id, the MME Manager process would initiate a vector call with the Partial Reset message to all Session Manager
processes. If the message had only 1 UE Id, the message was sent to only the Session Manager that handled that UE.
one UE Id, the MME Manager process would initiate a vector call with the Partial Reset message to all Session Manager
processes. If the message had only 1 UE Id, the message was sent to only the Session Manager that handled that UE.
New Behavior: The MME Manager now sends the Partial Reset message to only those Session Managers which are
handling those specific UEs mentioned in the Reset. Reset messages containing multiple UEs are now bundled together
in a single message to the appropriate Session Manager.
handling those specific UEs mentioned in the Reset. Reset messages containing multiple UEs are now bundled together
in a single message to the appropriate Session Manager.
Customer Impact: Prevents the over-utilization of the messenger path when large numbers of Partial Requests are
received from the eNodeBs.
received from the eNodeBs.