Configuring QoS Profiles
To create a QoS Profile, click Add Group in the Application Group window and then Add QoS Profile.
To edit a QoS Profile, click the content of the QoS Profile column for the selected Application Group in the Application Group window.
The following settings enable you to define the QoS objectives.
A QoS objective associated with an Application Group is used by the system
to measure and control the traffic according to the application requirements.
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Name: to identify the QoS
profile (character string) |
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Type: to identify the application
flow type: |
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Realtime: real-time flow
(VoIP, video) sensible to delay, jitter and loss, |
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Transactional: transactional
flow (SAP, Telnet), sensible to delay, |
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Background: different from
those listed above, |
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Session B/W (kbps): to
specify the bandwidth per session; the value is used by Application Control, |
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Obj (objective): nominal
bandwidth per session (mandatory parameter). |
The objective bandwidth per session is operational during congestion.
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Max (maximum): maximum
bandwidth allowed per session (not mandatory). |
If it is not defined, a value of 500 times the Objective is
applied.
Most of the time, the limit remains the WAN access so that you rarely
can experience this parameter. It can only be observed when the customer declares a low objective (e.g. 20 kbps) and the WAN access is large with low
activity (e.g. 100 Mbps available), and there are only a few sessions (based
on that QoS Profile) running at that moment.
If it is defined, it always applies when Application Control is enabled (i.e.,
even when there is no congestion and when Application Control does not control the bandwidth).
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Delay (ms), Jitter (ms), Packet Loss (%), SRT (server response time, ms), RTT (round trip time, ms), TCP Retrans (%): to specify, for each flow, the Objective and Maximum values for that
QoS profile. You enable these parameters by checking their boxes. |