Trace Depth; Trace Scope; Network Element Details; Mme - Cisco ASR 5000 Series Administration Manual

▀ Subscriber Session Trace Functional Description

Trace Depth

The Trace Depth defines what data is to be traced. There are six depths defined: Maximum, Minimum, and Medium all
having with and without vendor extension flavors. The maximum level of detail results in the entire control message
getting traced and forwarded to the TCE. The medium and minimum define varying subsets of the control messages
(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).
Note: 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
S1a
S3
S6a
S10
S11

S-GW

The S-GW support tracing of the following interfaces with the following trace capabilities:
Interface Name
▄ Cisco ASR 5000 Series Serving Gateway Administration Guide
Remote Device Trace Signaling (De)Activation RX
eNodeB N
SGSN Y
HSS Y
MME Y
S-GW N
Remote Device Trace Signaling (De)Activation RX
Configuring Subscriber Session Tracing
Trace Signaling (De)Activation TX
Y
Y
N
Y
Y
Trace Signaling (De)Activation TX
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