Network Performance requirements

Network Performance requirements from a Skype for Business client to Microsoft network Edge

For optimal Skype for Business media quality, the following network performance metrics targets or thresholds are required for a connection from your company’s network to the Microsoft network Edge. This segment of the network includes your internal network, this includes all WiFi and Ethernet connections, any company site-to-site traffic over a WAN connection, for example Multiprotocol Label Switching (MPLS), as well as the Internet or ExpressRoute partner connections to the Microsoft network Edge.

Caution: Connectivity between a Skype for Business client on your company network to Office 365 services must meet these following network performance requirements and thresholds.

Metric Target
Latency (one way) < 50ms
Latency (RTT or Round-trip Time) < 100ms
Burst packet loss <10% during any 200ms interval
Packet loss <1% during any 15s interval
Packet inter-arrival Jitter <30ms during any 15s interval
Packet reorder <0.05% out-of-order packets

Other performance target requirements:

  • The Microsoft network has over 160 Edge locations worldwide. We work with major Internet Service Providers (ISPs) worldwide through those Edge sites. The latency metric target assumes your company site or sites and the Microsoft Edges are on the same continent.
  • Your company site or sites to the Microsoft network Edge connection include first hop network access, which can be WiFi or another wireless technology.
  • The network performance target assumes proper bandwidth and/or quality of service planning. In other words, This applies directly to Skype for Business Real-Time media traffic when the network connection is under a peak load.

Network performance requirements from your network Edge to Microsoft network Edge

The following are the network performance targets or thresholds that are required for the connection between your network Edge and the Microsoft network Edge. This segment of the network excludes the customer’s internal network or WAN, and is intended as guidance when testing your network traffic that is sent over the Internet, or through an ExpressRoute partner network and can also be used when negotiating a performance Service Level Agreement (SLA) with your ExpressRoute provider.

Caution: Connectivity between your company network Edge to the Microsoft network edge must meet these following network performance requirements and thresholds.

Metric Target
Latency (one way) < 30ms
Latency (RTT) < 60ms
Burst packet loss <1% during any 200 ms interval
Packet loss <0.1% during any 15s interval
Packet inter-arrival Jitter <15ms during any 15s interval
Packet reorder <0.01% out-of-order packets

Other performance target requirements:

  • The performance target requires connection between any of your company’s network Edge and its nearest Microsoft network Edge, to be on the same continent.
  • The network performance target assumes proper bandwidth and/or quality of service planning. This also applies to Skype for Business Real-Time media traffic when the network connection is under a peak load. For proper bandwidth and QoS planning, please refer to ExpressRoute and QoS in Skype for Business Online.

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