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In the QoS docs they give an example of the following rules:


Upstream Priority

Nickname: VoIP_Upstream
Priority: 1 (Highest)
Protocol: TCP
Destination Port: 5060

Downstream Priority

Nickname: VoIP_Downstream
Priority: 1 (Highest)
Protocol: TCP
Destination Port: 5060


On the Downstream Priority, why is the Destination Port set to 5060 instead of the Source Port? I'd have expected Upstream to prioritize by Destination Port as shown, and Downstream to Prioritize the Source Port instead of Destination.


When prioritizing by IP address, the example rules make sense:


Upstream Priority

Nickname: SIP_Upstream
Priority: 1 (Highest)
Destination Address: 1.2.3.4

Downstream Priority

Nickname: SIP_Downstream
Priority: 1 (Highest)
Source Address: 1.2.3.4


How can both examples be correct? Which one is the typo?
Thursday, November 19 2015, 05:41 PM
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    matthieu
    matthieu
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    Saturday, January 23 2016, 01:07 PM - #Permalink
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    I think you're right; port 5060 is server side so downstream the source port should be specified.

    I'd like to add that this example is utterly wrong since in the SIP protocol the port 5060 is for the signalling, which does not need to be prioritised. It is the RTP flow that needs to be prioretizied. The RTP ports are dynamics and depends on the client side configuration (and not server side, which is is a common mistake found on the web).
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