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SDN Interface Bandwidth Estimates

Provides bandwidth estimate data for Skype for Business SDN Interface.

Applies to: Lync Server 2013 | Skype for Business 2015

Skype for Business SDN Interface, versions 2.2 and later, provides some estimates on the bandwidth that will be used during a call for each stream as a consequence of the codecs being used. The following table shows the raw estimates for each codec. The Bandwidth xml tag contains an exponential running weighted average based on the codecs that might be used during the call. This Bandwidth tag shows 0 bandwidth if the given stream direction is inactive.

Bandwidth Estimates

Codec Media Typical Maximum
X-MSRTA/16000 audio 49600 91000
X-MSRTA/8000 audio 33100 56600
G722/8000 audio 85400 164600
G722/8000/2 audio 108400 228600
G722/16000/2 audio 108400 228600
G7221/16000 audio 44800 81000
PCMU/8000 audio 83200 161000
PCMA/8000 audio 83200 161000
SIREN/16000 audio 39300 68600
SILK/16000 audio 47700 105000
SILKNARROW/8000 audio 31200 59000
SILKWIDE/16000 audio 47700 105000
SILK/8000 audio 31200 59000
X-ULPFECUC/90000 audio 29000 64000
AAL2-G726-32/8000 audio 38600 62000
X-RTVC1/90000 video 500000 2510000
X-H264UC/90000 video 500000 4010000
H264 video 500000 4010000
X-ULPFECUC/90000 video 29000 64000
X-DATA/90000 applicationsharing 439000 943000