Cisco Cisco ASR 5000
InTracer Support for SGSN
▀ Feature Description
▄ SGSN Administration Guide, StarOS Release 18
Feature Description
The IPMS (Intelligent Packet Monitoring System) solution provides a framework for operators to analyze and
investigate call related events for various platforms. The signaling messages related to 2G calls on SGSN are traced
through the IPMS. These include the message exchanges between SGSN and other peer entities like GGSN, HLR, EIR
and BSC.
investigate call related events for various platforms. The signaling messages related to 2G calls on SGSN are traced
through the IPMS. These include the message exchanges between SGSN and other peer entities like GGSN, HLR, EIR
and BSC.
A client server mechanism is implemented, where the IPMS client runs on the SGSN and copies the signaling packets
related to a 2G subscriber and then ships them to the IPMS server. This data can be used by operators in numerous ways
including debugging. Some identities like the IMSI, MSISDN, IMEI, APN, PDP addresses that are sent to the IPMS
server as and when they are learnt by the SGSN as standalone messages (TLVs) without any PDU. For example, during
a PTMSI attach procedure after the identity response from MS, the SGSN learns about the subscriber's IMSI and
communicates this identity with the IPMS server in the form a standalone IPMS message with IMSI TLV in it. The
different identities of MS are learned by SGSN during a call in several signaling message.
related to a 2G subscriber and then ships them to the IPMS server. This data can be used by operators in numerous ways
including debugging. Some identities like the IMSI, MSISDN, IMEI, APN, PDP addresses that are sent to the IPMS
server as and when they are learnt by the SGSN as standalone messages (TLVs) without any PDU. For example, during
a PTMSI attach procedure after the identity response from MS, the SGSN learns about the subscriber's IMSI and
communicates this identity with the IPMS server in the form a standalone IPMS message with IMSI TLV in it. The
different identities of MS are learned by SGSN during a call in several signaling message.