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New Member

Call Manager over DOCSIS - Best Practice QoS ???

I am going to be configuring a UBR10000 supporting DOCSIS 3.0 modems.  I will be using channel bonding.  At the Headend there will be a Call Manager installed.   IP Phones (SCCP) will be co-located with the Cable Modems.  The network looks like this:

Call Manager <-> Ethernet <-> CMTS UBR10000 <-> RF Plant <-> Cable Modem <-> Ethernet <-> IP Phone.

So my question is, what are the Best Practice recomendations for QoS to support the VoIP and Call Setup traffic going across the RF plant?  Specifically I'm looking for CMTS configuration suggestions and Cable Modem config file suggestions.

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4 REPLIES
Hall of Fame Super Gold

Re: Call Manager over DOCSIS - Best Practice QoS ???

Give priority ro DSCP EF and that should be enough.

I suspect you will be busy enough to be worrying about QoS first.

New Member

Re: Call Manager over DOCSIS - Best Practice QoS ???

Thanks for the response, and I agree giving DSCP EF priority is best.  But the question is how to give it priority.  There are a lot of tools available in the CMTS for doing that.  Which QoS tools and configurations are the best practices is what I am looking for.

Hall of Fame Super Gold

Re: Call Manager over DOCSIS - Best Practice QoS ???

Get it working first, don't worry aboout that now.

New Member

Re: Call Manager over DOCSIS - Best Practice QoS ???

I know how to get the basic connectivity working.  QoS is my only concern.

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