Configuring Subscriber Session Tracing
▀ Subscriber Session Trace Functional Description
▄ Cisco ASR 5x00 Packet Data Network Gateway Administration Guide
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(specific decoded IEs) to be traced and forwarded. The contents and definition of the medium and minimum trace can
be found in 3GPP standard 3GPP TS 32.423 V8.2.0 (2009-09).
Important:
Only Maximum Trace Depth is supported in the current release.
Trace Scope
The Trace Scope defines what NEs and what interfaces have the tracing capabilities enabled on them. This is actually a
specific list of NE types and interfaces provided in the trace session configuration by the operator (either directly via a
management interface or indirectly via a signaling interface).
Network Element Details
Trace functionality for each of the specific network elements supported by this functionality are described in this
section.
This section includes the trace monitoring points applicable to them as well as the interfaces over which they can send
and/or receive trace configuration.
MME
The MME support tracing of the following interfaces with the following trace capabilities:
Interface Name
Remote Device
Trace Signaling (De)Activation RX
Trace Signaling (De)Activation TX
S1a
eNodeB
N
Y
S3
SGSN
Y
Y
S6a
HSS
Y
N
S10
MME
Y
Y
S11
S-GW
N
Y
S-GW
The S-GW support tracing of the following interfaces with the following trace capabilities:
Interface Name
Remote Device
Trace Signaling (De)Activation RX
Trace Signaling (De)Activation TX
S1-U
eNodeB
Y
N
S4
SGSN
N
N
S5
P-GW (Intra-PLMN) Y
N
S8
P-GW (Inter-PLMN) N
N
S11
MME
Y
N
S12
RNC
Y
N
