Diffserv configuration for VoIP on Netgear FS728TPv2

I want to configure diffserv QoS for my Netgear FS728TPv2 to prioritize traffic to my IP PBX. Can anyone provide me an example of how this works?
medium_gradeAsked:
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Alex BaharCommented:
Hi,

Each port in the switch can be configured to trust one of the packet fields (802.1p or IP DSCP), or to not trust any packet's priority designation (untrusted mode). If the port is set to a trusted mode, it uses a mapping table appropriate for the trusted field being used.

Make sure you enable TRUST IP DSCP for all ports that connect to VoIP devices. That includes the PBX, gateways, phones, and *all* uplinks/trunks that connect the switches and routers to each other.

Set all notebook/PC ports to UNTRUSTED.

If a switch services the VoIP devices only, then you can set the global mode to trust IP DSCP.

The switch will take care of the rest, if your IPPBX is using the industry default DSCP settings.

I hope this helps.
Regards,
Alex

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