Release Note для Cisco Cisco Packet Data Gateway (PDG)
MME Changes in Release 15.0
▀ MME Enhancements for September 30, 2013
▄ Cisco ASR 5x00 Release Change Reference
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MME Enhancements for September 30, 2013
MME Feature Changes as of September 30, 2013
This section provides information on MME feature changes in release 15.0.
Important:
For more information regarding features in this section, refer to the MME Administration Guide for
this release.
New MME Features
This section identifies new MME features available in release 15.0.
Attach Rate Throttling
This feature enables operators to limit the rate at which the MME processes new connections (attaches, TAU requests,
and forward relocation requests) which in turn reduces the signaling on the external nodes.
and forward relocation requests) which in turn reduces the signaling on the external nodes.
See the
network-overload-protection mme-new-connections-per-second
command for more information.
CSFB/SGS Bulk Statistics and Counters
New Circuit-switched fallback statistics and counters have been introduced in this release. Refer to the New MME Bulk
Statistics and show mme-service statistics sections for more information.
Statistics and show mme-service statistics sections for more information.
Enhancements in Support of 3GPP 29.118 Release 10
The following enhancements have been introduced to support Release 10.9.0 of 3GPP 29.188: Visitor Location Register
(VLR) SGs interface specification:
(VLR) SGs interface specification:
Support is added for a new SGs message SGsAP-SERVICE-ABORT-REQUEST as defined in the 3GPP
specification. This SGs message is sent by MSC/VLR to MME to abort an ongoing CS service fallback for
mobile terminating CS voice call. Upon receiving this message MME is required to abort the CS service
fallback for the specified UE. No additional configuration is needed to support this functionality. Refer to the
Modified MME Bulk Statistics section and Modified MME Output Fields section of this document for more
information on the changes to the bulk statistics and show commands in support of this functionality.
mobile terminating CS voice call. Upon receiving this message MME is required to abort the CS service
fallback for the specified UE. No additional configuration is needed to support this functionality. Refer to the
Modified MME Bulk Statistics section and Modified MME Output Fields section of this document for more
information on the changes to the bulk statistics and show commands in support of this functionality.
Support is added for configuration of the Ts13 Timer under the SGs service. Refer to the Modified MME
Commands section of this document more information.
MME Support on ASR 5500 Platform
The MME service can now be deployed on the ASR5000 and ASR5500 platforms. The same set of features are
available across both platforms, giving operators flexibility in the choice of platform based on scale and not based on
function.
available across both platforms, giving operators flexibility in the choice of platform based on scale and not based on
function.
SRVCC Enhancements
The following SRVCC-related enhancements are included in this release: