User's Manual

11 Command-line tool for database management 76
7signal Ltd, Panuntie 6, FI-00620 HELSINKI, FINLAND, [phone], [e-mail], www.7signal.com
7signal Sapphire Deployment Guide Release 3.1
The data transferred in only test parameters and in most cases results of analysis, sometimes
raw measurements.
Naturally the number of Eyes is directionally proportional the traffic load as each Eye
connection are independent and concurrent. One single Eye typically executes a test in one
minute in the average. However, there are tests that finish in 10 seconds (practical minimum)
and few tests run few minutes.
The communication protocol is both minimal and binary so the traffic from Carat to Eye is very
economic. The measurement result minimum is around 100 bytes in one message and the top
range is the spectrum measurement (not available in all configurations) that returns
approximately 300 times a 50 byte result unit.
In data communications sense the traffic for single Eye is minimal.
Test type and test distribution depend on the test profile used in the Carat server. The test
profile content and test parameters (incl. test duration and size of file transfers) are freely
modifiable by Carat system administrator.
11.6.3 Carat server – Carat GUI
From
To
Medium
Traffic
motivator
Volume
estimate
Major factor
Carat
GUI
Ethernet
User
Very low.
User activity, expected low.
GUI
Carat
Ethernet
Responses to
client.
300 kB/minute
Spectrum Analysis and
MOS test results may
contain significant amount
of data.
There is no continuous interaction, all activities are initiated by the user. The amount of traffic
depends completely on user-decisions. Typically the traffic is binary communication.
In 7signal Solution the IP cloud between the client and the server may be complex and contain
VPNs, wireless links etc. that affect the communications.
11.6.4 Loupe server – Loupe client (browser)
From
To
Medium
Traffic
motivator
Volume
estimate
Major factor
Loupe
host
Clients
in
WWW
Ethernet,
general
networking
User
actions
Volatile. Like
one HTTP
client.
User activity. Per any
request the amount of
requested KPIs is the
driving factor.
There is no continuous machine-to-machine interaction, all activities are initiated by the user.
The amount of traffic depends completely on user-decisions. Server output typically contains
graphics. Medium duty cycle.
11.6.5 DB2 and Loupe server, DB2 and Carat server
In current implementation all three processes are running in the same host so there is no
network burden whatsoever outside the host.