User's Manual

16 How To Troubleshoot Using Loupe 29
7signal Ltd, Panuntie 6, FI-00620 HELSINKI, FINLAND, [phone], [e-mail], www.7signal.com
7signal Sapphire Loupe User Guide Release 3.1
16.2.2 Downlink Performance Problem
The network SLA table shows the performance situation of the selected APs.
The table presents downlink performance problems during the working days.
 Wireless or fixed network problem?
Check also these KPIs:
KPI ID / tab
Name
Description
TP/SNR
FTP DL throughput
variation as a function
of SNR
The TP/SNR KPI presents if wireless and/or wired
side conditions change repeatedly
QUAP005
VoIP MOS downlink
(listen)
The VoIP MOS KPI presents detailed information
about VoIP MOS variation in the network. With 2
or more Sonar setup the VoIP MOS performance
can be observed in wireless and wired side.
QUAP015
VoIP MOS packet loss
The VoIP packet loss KPI presents the network
packet loss situation
QURT004
Ping RTT
The round trip time presents the e2e connection
delay variation
QUAP001
FTP DL throughput
The FTP DL throughput KPI presents detailed
information about throughput variation in the
network. With 2 or more Sonar setup the
throughput problem can be limit to wireless /
wired side.
QUIP005
FTP DL packet size
The radio packet size KPI presents the possible
packet size variation in the radio interface
QURS002
AP signal level at Eye
The measured AP signal level and SNR presents
the radio environment variations
QURS003
AP SNR at Eye
The measured AP signal level and SNR presents
the radio environment variations