2. IT-Pro59 Optimize your Network for Skype for Business

9. Bandwidth Planning

16. CodecRTAudio - 8Khz RTAudio - 16 Khz SirenG.711G.722G.722 Stereo Silk – 8Khz Silk – 16 Khz Typical Bandwidth – No FEC 30.9 kbps 39.8 kbps25.5 kbps64.8 kbps46.1 kbps73.1 kbps30 kbps44 kbps Upper Limit – No FEC 44.8 kbps 62 kbps52.6 kbps97 kbps 100.6 kbps 159.6 kbps 46 kbps69 kbps Upper Limit - FEC 56.6 kbps 91 kbps68.6 kbps161 kbps 164.6 kbps 223.6 kbps 59 kbps105 kbps

17. CodecRTAudio - 16 Khz Typical Bandwidth – No FEC 39.8 kbps Upper Limit – No FEC 62 kbps Upper Limit - FEC 91 kbps

18. DEMO Bandwidth Calculator

19. Planning vs. reality

22. Networking Challenges Bandwidth is not unlimited.

29. Audio Video Audio Traffic Video Traffic Web Email Total Available Bandwidth File Transfer Other Traffic Voice - Queue Video - Queue Best Effort- Queue

30. DSCP End Point GPO marks traffic from SfB Trust DSCP marking from network access layer ACL Port Based Remark based on port at network ingress point Restrict media to 40 UDP ports per workload DSCP + ACL Mark DSCP using GPO policies Restrict port range by GPO Check DSCP and Port are correct. Protocol Based Re-mark based on protocol (SRTP) at WAN Ingress Requires Network Equipment to support deep packet inspection at Line Speed. IP Based Re-Mark based on SRC or DST IP addresses Works for Centralized PSTN and Conferencing traffic (GNOC) Doesn’t work for Peer traffic scenarios Not advised

32. Client Traffic Type DSCPSource IP Destination IP Protocol s Source port range Destination port range Audio46Any TCP/UD P 50020:50039Any Video34Any TCP/UD P 58000:58019Any App Sharing24 Any TCP/UD P 42000:42019 Any File Transfer14Any TCP/UD P 42020:42039Any

36. How to ensure network connection to O365?

37. Customer’s network Microsoft Edge Partner Edge

39. Internet

40. What is it?Prerequisites Private connectivity to all Microsoft cloud services Existing circuits can be updated to connect to Office 365 Experience similar to having Office 365 deployed in a branch office Predictable performance and quality of service for Azure subscription to setup and manage ExpressRoute Relationship with a connectivity provider IP address and AS number ownership if managing routing Ability to manage routing and configure NAT if using a layer 2 connectivity provider WAN with multiple Classes of Service (CoS) to support VOIP Supported workloads Exchange Online & Exchange Online Protection SharePoint Online, OneDrive for Business, Office 365 Video, Delve Skype for Business Online Office Online Power BI and Project Online CRM Online (preview)

41. ER Circuit

46. Appendix

47. Software Defined Networking

48. https://www.opennetworking.org/images/stories/downloads/sdn-resources/white-papers/wp-sdn-newnorm.pdf

49. “Higher-layer application functions will become integrated with lower layers of the network, leading to two-way application awareness. The network will be able to adapt to changing application requirements efficiently and effectively. In other words, applications will be able to dictate what the network needs to do to support them.” – Julie Kunstler, Ovum Research March 18, 2013

50. Northbound API Southbound API

51. Network Control & Management Functions Application (ex: UC) SDN Diagnostics Network Service App NE Network Elements End-User Application Focused NB APIs Network Services Function SDN Security Network Service App Network Focused NB APIs SDN QoS Network Service App Traffic Eng Network Service App Flow Programing TopologyInventoryStatistics Path Computation SDN Controller End-User Application SB APIs (Openflow)

52. Network elements Events: Start, update, error, and end dialog Attributes: SIP URIs Call ID IP SA/DA Protocol Transport S/D ports Media type Codec & BW

53. Network elements Events: Quality update event for voice, video, or data Attributes: 5-tuple value NMOS value Delay value Jitter value Packet loss value Healer ratio value

54. Diagnostics Proactively automate the diagnostics and troubleshooting of bad calls Automated QoS Reduce the cost of deploying QoS and implementing Traffic Engineering. Orchestration IT Agility & Network Customization through real-time, policy-based config of network resources.