Network Instruments GigaStor User Manual page 43

Figure 8: Basic LTE infrastructure
A GigaStor probe can capture and track all of a device's network traffic in your LTE environment after the device
connects to an eNodeB. You can get comprehensive subscriber analysis as well as have a logical workflow for
problem resolution. By analyzing the LTE traffic from a GigaStor probe, you can see a summary of all devices or
filter to a specific device. Observer can:
Show you detailed subscriber session use and error reporting including those associated with
authentication, rejection, connectivity, handover, or application
Filter subscribers by IMSI
Provide real-time and post-event analysis of individual subscriber activities and session irregularities as
well as bandwidth utilization for each interface
Obtain metrics and visibility for all important interfaces within your LTE environment (eNodeB, X2, S1-
U, S1-MME, S5-U, S6a, and S11), logically broken out by UE device, eNodeBs, MMEs, SGWs, PGWs and
application tabs
Provide subscriber and session level summaries by duration, throughput, handovers, errors ,
applications, and user (S1-U)/control (S1-MME, S11) planes
Show multi-protocol support from the eNodeB access point through the EPC and beyond the PGW
provides outstanding service knowledge related to all major applications such as authentication/
authorization, web browsing, or any other customer facing apps including over-the-top (OTT)
Show complete VoLTE analytics including, call setup and tear-down, replay capabilities, MOS, jitter, and
packet loss metric
Analyzing 4G LTE traffic | 43