Cisco Cisco Packet Data Gateway (PDG) Nota Di Rilascio
MME Changes in Release 15.0
▀ MME Enhancements for September 30, 2013
▄ Cisco ASR 5x00 Release Change Reference
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performing EPS only ATTACH), or in cases where the Location Update Procedure is unsuccessful, the MME
shall send the MME configured information.
shall send the MME configured information.
See the
policy attach
and
policy tau
commands in the Modified MME Commands section of this document for
information about this setting.
The net effect of the new algorithm will be a slight delay in the delivery of the EMM information to the UE. This delay
will be almost imperceptible to the end user.
will be almost imperceptible to the end user.
This feature eliminates three negative side effects: (1) Unnecessary OTA signaling on every attach. (2) In the case
where the content of the EMM information is different (network names, timezone or Daylight Savings offset), the users
could see the change occur on the UE's display. (3) For UE's that prompt the user whether to accept network time on
their device, this will prevent multiple prompts and any undesirable side effects should a second EMM message be
received before the user took action on the first EMM message prompt.
where the content of the EMM information is different (network names, timezone or Daylight Savings offset), the users
could see the change occur on the UE's display. (3) For UE's that prompt the user whether to accept network time on
their device, this will prevent multiple prompts and any undesirable side effects should a second EMM message be
received before the user took action on the first EMM message prompt.
SGs Architecture Enhancements: Load Balancing of Outbound Messages
Previous Behavior: The SGs architecture allows multiple SCTP associations to be created from the MME toward the
VLR. This allows the VLR to send and receive messages on any of the associations. In previous releases, the MME was
able to perform load balancing at the application level across multiple SCTP associations for inbound messages.
However, on the outbound side, the MME sent all update messages on a single link.
VLR. This allows the VLR to send and receive messages on any of the associations. In previous releases, the MME was
able to perform load balancing at the application level across multiple SCTP associations for inbound messages.
However, on the outbound side, the MME sent all update messages on a single link.
New Behavior: In this release, the MME has been enhanced to ensure outbound load balancing is achieved. No
command line interface or configuration changes are required for this new functionality.
command line interface or configuration changes are required for this new functionality.
UE-AMBR Displayed in show mme-service db record
Previous Behavior: The APN-AMBR associated to each of the APN was available in the output of 'show mme-service
db record', but not the subscription AMBR
db record', but not the subscription AMBR
New Behavior: Max Req Bandwidth UL and Max Req Bandwidth DL fields have been added to display the UE AMBR
upload and download throughput. Refer to the New MME Field Outputs and Counters section for more information.
upload and download throughput. Refer to the New MME Field Outputs and Counters section for more information.
MME Command Changes as of September 30, 2013
This section provides information on MME command changes in release 15.0.
Important:
For more information regarding commands in this section, refer to the Command Line Interface
Reference for this release.
New MME Commands
This section identifies new MME commands available in release 15.0.
associate
This new command associates a pre-configured location service (LCS) with an LTE emergency profile. This enables the
associated location service to provide location information of emergency calls to the GMLC.
associated location service to provide location information of emergency calls to the GMLC.
configure
lte-policy