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Basic question in QoS

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nurofen

Technical User
Aug 12, 2003
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Hello,
I am back with another probably silly question that is puzzling me.
I inherit a platform, I am looking the way is program and it start to create some problems with what I though I know.
In all the systems I have install in the last few years, always the QoS parameters are the same value, in this system, no one is the same or maybe I was always confuse and what I believe was true, is not.
If some one can help me, I will appreciate.
Checking the network regions for registration and DSP resources, I can see the following parameters,

802.1P/Q PARAMETERS

Call Control 802.1p Priority: 7
Audio 802.1p Priority: 6
Video 802.1p Priority: 5

If I check the branches, only phones

802.1P/Q PARAMETERS

Call Control 802.1p Priority: 6
Audio 802.1p Priority: 6
Video 802.1p Priority: 5

And finally, if I check the IPSI card

QoS Parameters

Call Control 802.1p: 5
Call Control DiffServ: 46

So, as far as I can see, the system has 3 different values for the Call Control 802.1p.
- 7 between the registration (INR) and the network regions where the Media Resources are.
- 6 in the network regions where the phones are connected
- 5 in the IPSIs.
In other systems, my value is consistent all over the 3 places.
I can understand the different values due the different use, but I can not understand why they are using different Call Control priority between the CLAN/MedPro network regions and “phones” network-regions.
I have no problem, everything works fine, but I cannot find out a reason why they made it in that way.
Thanks for the answers,

Regards
 
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