nanog mailing list archives
Re: estimating VoIP data traffic size from VoIP signaling traffic size ?
From: Bill Woodcock <woody () pch net>
Date: Sat, 22 Oct 2005 10:34:14 -0700 (PDT)
> is there any statistics on aggregated VoIP signaling > bandwidth and aggregated VoIP data bandwidth? eg. if > we monitored there is 2Mbps(average) traffic on VoIP > signaling protocol ports ( including SIP, H.323, > MGCP), how could we estimate average VoIP data > bandwidth? For any given user population, you could calculate the ratio, but that's an observation, not a predictive rule. And it would be different for every population. On the other hand, if you have access to the signaling traffic, it _contains_ the statistics about the data traffic. Byte-counts, times, loss, latency, jitter, and out-of-order delivery. All right there in each SIP-Bye message. Which, of course, you aren't guaranteed to see, but there again, you can extrapolate from knowing what portion you are seeing. -Bill
Current thread:
- estimating VoIP data traffic size from VoIP signaling traffic size ? Joe Shen (Oct 22)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? Bill Woodcock (Oct 22)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? Blaine Christian (Oct 23)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? Jared Mauch (Oct 23)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? Blaine Christian (Oct 23)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? Peter (Oct 23)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? Jared Mauch (Oct 23)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? John Todd (Oct 23)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? Bill Woodcock (Oct 23)
- Re: estimating VoIP data traffic size from VoIP signaling traffic size ? Bill Stewart (Oct 23)