I am trying to setup priority for voice on a cisco router. I have used the 'ip rtp priority' command and am unsure about the last option 'bandwidth'. I am not quite sure what to put there. Is it a calculated number or is it set to my per call bandwidth off of my phone switch or is it another number?
Setting BW = 60k (on the ip rtp priority command) means that you are reserving up to 60k for *RTP* traffic, when such traffic is present. Is has nothing to do with your CIR. This value should match the necessary BW to hold the maximum number of simultaneous calls, and it depends on the codec each call will use. For example, G.729 will take about 26k on a FR link (without cRTP). So 60k would allow for 2 concurrent calls, and there would be a little cushion (of 60 - 52 = 8k). Don't forget that RTP priority means strict priority; if you have, in this case, 2 concurrent calls, you will have too little BW for data during the time the 2 calls are active.
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Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...