Anthony, yes makes sense. but for the sake of argu. a single phone with even with BIB how many max g711 streams it can get to. 3? if so, for a safe figure can multiply by 3. moreover, I dont really understand this statement ​police 90500 8000 exc drop - as per docs, the actual transmission is 8k but on the avg. the max is 90k ( plz correct if wrong)
On 15 April 2015 at 18:10, Anthony Holloway <[email protected] > wrote: > After reading the Medianet document, I'm certain they are just giving you > an example, not a definitive answer nor the best practice. While 128kbps > does police the port to a single g711ulaw call, it also allows for a little > wiggle room, which I like. If you are looking for the absolute minimum > bandwidth needed for a g711ulaw call, you could go lower than 128kbps, but > you wouldn't gain anything. Don't forget that the BIB of the phone could > cause more than a single call's worth of RTP to ingress the switch port, in > which case your 128kbps would not be enough and you would have issues with > things such as network recording or silent monitoring. > > On Wed, Apr 15, 2015 at 9:19 AM abbas Wali <[email protected]> wrote: > >> medianet is >> >> http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND_40/QoSCampus_40.html >> >> Vik's post >> http://www.collabcert.com/blog/qos/how-much-bandwidth-does-1-call-consume/ >> >> >> On 15 April 2015 at 13:44, Anthony Holloway < >> [email protected]> wrote: >> >>> Can you link us to the sources in question? I personally need a little >>> more context to go with your question. >>> >>> In general, policing a single g711ulaw call is around 93kbps, and >>> rounding it to 100kbps still achieves the goal of policing a single call. >>> And yes, a class based policer would police media and signaling separately. >>> >>> Also, I saw something on medianet at last year Cisco Live, but other >>> than that, I'm clueless about medianet. I can't say if and how things >>> changed once medianet came in to the picture. I'm sure Vik wasn't >>> considering that either, based on the fact that he teaches CCIE Collab boot >>> camps, and medianet is not a part of the blueprint. >>> On Wed, Apr 15, 2015 at 4:22 AM abbas Wali <[email protected]> wrote: >>> >>>> hi all, >>>> >>>> Vik Malhi posted that for a successful g711 call >>>> >>>> HQSW(config-pmap-c)#police 90500 8000 exc drop ! 0 packet loss >>>> >>>> now, as per Ciso medianet 4 >>>> >>>> The VoIP and signaling traffic from the VVLAN can be policed to drop at >>>> 128 kbps and 32 kbps, respectively (as any excessive traffic matching this >>>> criteria would be indicative of network abuse) >>>> >>>> Question is 128 kbps supports 1 single voice stream of g711 OR if you go >>>> with Vik, you need to multiply 90500 with the number of calls you need on >>>> that port. I will assume that the sig is classified differently and >>>> handled by diff policer on that port. >>>> >>>> >>>> many thanks >>>> >>>> >>>> -- >>>> *Abbas Wali* >>>> _______________________________________________ >>>> cisco-voip mailing list >>>> [email protected] >>>> https://puck.nether.net/mailman/listinfo/cisco-voip >>>> >>> >> >> >> -- >> *Abbas Wali* >> > -- *Abbas Wali*
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