Azure ExpressRoute: new features, best practices, customer experiences

Azure ExpressRoute: new features, best practices, customer experiences
5/19/2018 8:07 AM BRK4023 Azure ExpressRoute: new features, best practices, customer experiences Ross Ortega Charley Wen Bala Rajagopalan Microsoft Gopala Gaddipati Principal Architect T-Mobile Joe Hielscher Dir, Strategic Technology & Alliances Arista Networks © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

ExpressRoute ✔ Private connectivity to Microsoft Cloud Services
5/19/2018 8:07 AM ExpressRoute ✔ Private connectivity to Microsoft Cloud Services ✔ Predictable performance ✔ Enterprise-grade resiliency with availability SLA ✔ Large and growing ExpressRoute partner ecosystem Customer’s Network Partner Edge Primary Connection Microsoft Edge Secondary Connection ExpressRoute Circuit Microsoft Peering for Office 365 and Dynamics 365 Azure Public Peering for Azure public IPs Azure Private Peering for Virtual Networks © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

ExpressRoute connectivity models
Microsoft AzureCon 2015 5/19/2018 8:07 AM ExpressRoute connectivity models ExpressRoute ExpressRoute ExpressRoute Partner provide LAYER 3 service to the customer WAN Partner provides LAYER 2 service to the customer Cloud exchange co-location Point-to-point Ethernet connection Any-to-any (IPVPN) connection © 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

34 ExpressRoute locations
5/19/2018 8:07 AM Dublin Montreal Seattle Newport, Wales Toronto London Amsterdam Chicago Paris Seoul Denver Quebec City Busan Silicon Valley New York City Marseille Tokyo Las Vegas Dallas Washington DC Osaka Los Angeles San Antonio Atlanta Miami Hong Kong Mumbai 34 ExpressRoute locations Chennai Singapore Johannesburg Sao Paulo Cape Town Sydney Coming soon Melbourne © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5/19/2018 8:07 AM ExpressRoute Premium provides global connectivity over Microsoft’s network © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

12 ExpressRoute locations for National Clouds
5/19/2018 8:07 AM Germany Cloud Government Cloud Berlin Frankfurt Seattle China Cloud Chicago Silicon Valley New York City Beijing Shanghai Dallas Washington DC Phoenix San Antonio 12 ExpressRoute locations for National Clouds Coming soon © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

100+ ExpressRoute partners
5/19/2018 8:07 AM © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Features update

Features released since last Ignite
Zero down time gateway upgrade ExpressRoute virtual network gateway is protected against planned maintenance, e.g. VM OS upgrade, host OS upgrade Planned maintenance notifications IP updates for Azure, Office 365, Dynamics 365 on Azure portal Router maintenance notifications to ExpressRoute partners Connection weight Optimize routing for traffic from virtual network Route filter for Microsoft Peering Select the services you want to enable Reduce the number of prefixes you and your service provider will receive

New features Monitoring Preview IPv6 support
5/19/2018 8:07 AM New features Monitoring Preview Resource Health Check (RHC) Circuit metrics in Azure Monitor Customer monitoring through Network Performance Monitor (NPM) IPv6 support Office 365 & Azure public services Merging of Microsoft Peering and Azure Public Peering Preview Azure public services on Microsoft Peering Azure regions selectable through route filters Bi-directional connections for services hosted on Azure Azure Public Peering supported in near future ExpressRoute Circuit Customer’s network Microsoft Edge Partner Edge ExpressRoute Circuit Customer’s network Microsoft Edge Partner Edge © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

End-to-end connectivity monitoring using NPM
5/19/2018 8:07 AM End-to-end connectivity monitoring using NPM Bala Rajagopalan Microsoft © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Monitoring ExpressRoute
5/19/2018 8:07 AM Monitoring ExpressRoute Monitor availability & performance of the circuits Visualize topology of the circuits Keep a track of bandwidth and data utilization More Details in BRK :45 – 1:30 PM, Sept 28, OCCC W240 © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Arista Any Cloud with Cloud Tracer
5/19/2018 8:07 AM Arista Any Cloud with Cloud Tracer Joe Hielscher Arista Networks © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Introducing Arista’s Any Cloud Platform
Arista virtual EOS Router Same as on Arista Hardware Secure VPN Tunneling and High Availability Traffic Engineering Standard APIs vEOS Router Uniform operational model & standard APIs Arista CloudVision Provisioning, orchestration, telemetry & analytics Private Clouds Public Enterprise Datacenters Cloud Exchanges Any Place-In-the-Cloud Universal Cloud Network And so when we talk about those attributes, we are talking about our software strengths. And we deliver on those qualities through our software products: EOS and Cloudvision. The Arista Any Cloud platform is the combination of our EOS, in the form of our our vEOS Router, and CloudVision, which can be used with that same universal cloud network architecture across any cloud. As we consider the Hybrid Cloud use-case, there are by definition many different places-in-the-cloud in play here. Of course, the public cloud instances, which are likely the newer part of the operation. But also the private cloud, the cloud exchanges and even the enterprise data center plays into the any-cloud scope. And the any cloud solution provides a a consistent architectural and operational approach across these use-cases. The cloud networking approach will continue to transcend the other places in the network as well, as branch and campus can also make use of this solution over time.

Arista Any Cloud Platform in Azure
Private Cloud Cloud Exchanges Public Clouds Any Cloud API vEOS Router in Azure West Automation Analytics vEOS Router in Azure East Agile Work-X Here is a view of the Any Cloud platform that expresses the scope. Today, most customers are starting with a networking infrastructure footprint within the enterprise Data center and they want to expand from there. The extension would be to the public clouds, of which they have several choices. Likely AWS and Azure are the leading cloud platforms, and we’ve done the work to integrate with those cloud platforms. The network has to take into account secure connections, using IPSEC, across multiple cloud providers and across multiple availability Zones within each of those cloud providers. Also need to factor in internet exchanges, which are becoming the on-ramp to these cloud platforms. So with partners such as Equinix, we are able to provide visibility solutions even at those meet-me points. Leveraging EOS and CloudVision components, customers can continue to use those same products that they have used to a more cloud-like datacenter on-premises. With those same cloud principles of the 5A’s applying throughout. Enterprise Datacenter with Arista Universal Cloud Network Available Architecture Arista 7500R at Equinix Cloud Exchange vEOS Router in Azure Stack Consistent hybrid cloud connectivity, seamlessly extended…

Arista Any Cloud Platform Demo
Private Cloud Cloud Exchanges Public Clouds Cloud Tracer™ Telemetry vEOS Router in Azure West Probe vEOS Router in Azure East Probe Here is a view of the Any Cloud platform that expresses the scope. Today, most customers are starting with a networking infrastructure footprint within the enterprise Data center and they want to expand from there. The extension would be to the public clouds, of which they have several choices. Likely AWS and Azure are the leading cloud platforms, and we’ve done the work to integrate with those cloud platforms. The network has to take into account secure connections, using IPSEC, across multiple cloud providers and across multiple availability Zones within each of those cloud providers. Also need to factor in internet exchanges, which are becoming the on-ramp to these cloud platforms. So with partners such as Equinix, we are able to provide visibility solutions even at those meet-me points. Leveraging EOS and CloudVision components, customers can continue to use those same products that they have used to a more cloud-like datacenter on-premises. With those same cloud principles of the 5A’s applying throughout. Cloud Tracer™ Cloud Exchange Integrated with CloudVision Telemetry Analytics vEOS Router in Azure Stack Probe Instrumenting for Visibility across the Hybrid Cloud

Insights & best practices
5/19/2018 8:07 AM Insights & best practices © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Insights from customer support cases
Single flow performance Customers expect to saturate a 10G circuit with a single TCP flow Distance decides latency; latency has a major effect on throughput UDP fragmentation Datagrams larger than 1350bytes get fragmented ExpressRoute circuit deletion workflow Circuit must be de-provisioned by provider before it is deleted Circuit is billed until it’s deleted Troubleshooting during initial setup EtherType and VLAN ID mismatch between customer and service provider L2 and L3 connectivity can be validated using MAC table and route table

Route filters for Microsoft Peering
5/19/2018 8:07 AM Route filters for Microsoft Peering Select services, reduce routes No effect on existing circuits with Microsoft Peering Customer continue to receive all Office 365 and Dynamics 365 routes New Microsoft Peering Any subscription can create No routes are advertised by default Still need approval to receive Office 365 prefixes Steps to create a route filter Opt-in for current customers © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

IPv6 for Office 365 Supported on Azure commercial cloud and Government Cloud Dual stack and BGP sessions on Microsoft Peering IPv4 must always be enabled Route filters can be applied independently for IPv4 and IPv6

ExpressRoute VPN coexistence
5/19/2018 8:07 AM ExpressRoute VPN coexistence Two scenarios “headquarters & branch office” High availability (failover) VPN faster gateways New VPN gateways delivers up to 1.25Gbps, support BGP and active-active IPsec tunnels Limitations ExpressRoute must be configured before Site-to-Site VPN Only “route-based” VPN gateway is supported Transit routing is not supported “branch office” Site-to-Site VPN Site-to-Site VPN Azure VNET ExpressRoute “headquarters” © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Manage routing for coexistence
5/19/2018 8:07 AM Manage routing for coexistence Run BGP on Site-to-Site VPN connections Longest Prefix Match rules! Even in the “headquarters” scenario, if a longer prefix is received on VPN traffic will be sent on VPN If there is a tie, ExpressRoute is preferred. “Force-tunneling” Use BGP to advertise default route, /0, on both connections Do NOT use UDR to point traffic to the gateway “branch office” Site-to-Site VPN Site-to-Site VPN Azure VNET ExpressRoute “headquarters” © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Solve a “force-tunneling” problem
5/19/2018 8:07 AM Solve a “force-tunneling” problem Force traffic to on-premises network for security, compliance enforcement Break Azure services in VNet Apply UDR to subnet Route /0 Nexthop Internet But this could be too general Narrow down to specific IPs Route <service management IP> Nexthop Internet Azure App Service Azure Batch Azure HDInsight Service Management Service management opens a connection to manage the instance ExpressRoute Return traffic Public IP Customer VNET BGP: /0 GW subnet HDInsight subnet Customer’s premises © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Optimize routing using BGP attributes
5/19/2018 8:07 AM Optimize routing using BGP attributes Microsoft Network US West US East Use “local preference” to select the path for traffic from you to Microsoft Use “AS-Path prepending” to select the path for traffic from Microsoft to you ExpressRoute ExpressRoute Customer’s Network Office in Los Angeles Office in New York © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Optimize routing using connection weight
Sub-optimal routing between VNets ECMP based on 5-tuple hashing is enforced by default Connection can be hair-pinned at a remote ExpressRoute site Set weight on the VNet-to-ER connection Assign a higher weight to a connection to a closer ExpressRoute circuit Connection with highest weight will be chosen for egress traffic from VNet Setting and effect are unidirectional US West US West 2 US East US Eest 2 W = 100 San Jose Washington DC

Connection weight and BGP attributes
5/19/2018 8:07 AM Connection weight and BGP attributes Microsoft Network US West US East W=100 W=100 Use connection weight to select the path from Microsoft to you If both connection weight and AS-path prepending are applied, path is selected based on the former ExpressRoute ExpressRoute Customer’s Network Office in Los Angeles Office in New York © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Asymmetric routing and solution
5/19/2018 8:07 AM Asymmetric routing and solution SaaS on Azure can initiate connection For example, on-premises SharePoint, Active Directory Customer has Azure Public Peering only Customer receives Azure public IPs on ER, but can’t advertise their on-premises public IPs Asymmetric routing could happen Use NAT to enforce symmetry Internet SaaS Public IP NAT NAT Azure public peering Customer’s premises Microsoft Azure © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5/19/2018 8:07 AM Asymmetric routing and solution Customer has both Microsoft Peering and Azure Public Peering On-premises IPs advertised to Microsoft via Microsoft Peering SaaS Azure IPs are not advertised to customer via Microsoft Peering Asymmetric routing happens Two solutions Advertise the on-prem IP to Internet Enable Azure public services on Microsoft Peering Internet SaaS Public IP NAT NAT Azure public peering Microsoft peering Customer’s premises Microsoft Azure © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5/19/2018 8:07 AM Asymmetric routing and solution Microsoft Azure ExpressRoute ExpressRoute ExpressRoute Prefix X Prefix Y Prefix Z NAT NAT NAT DMZ DMZ DMZ WAN Customer’s premises Advertise unique (NAT) IPs for connections from you to Microsoft © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5/19/2018 8:07 AM Asymmetric routing and solution Microsoft Azure SaaS ExpressRoute ExpressRoute ExpressRoute Prefix X Prefix X Prefix X Stateless extranet Firewall Firewall Firewall NAT DMZ DMZ NAT DMZ NAT Customer’s premises Apply NAT to connections from Microsoft to you © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Routing with VNet Peering
5/19/2018 8:07 AM Routing with VNet Peering Use VNet Peering for VNet-to-VNet communication Reduce latency, increase throughput VNet Peering is preferred even if VNets are linked to ER Enable “Hub & Spoke” Centralize IT policies in the Hub Spokes can’t talk to each other Spokes can talk to on-premises using the ExpressRoute gateway on the Hub Peering Peering © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Routing with VNet Peering at multiple sites
5/19/2018 8:07 AM Routing with VNet Peering at multiple sites “Hub and Spoke” at each site for performance and scale Use global VNet Peering for Hub to Hub communication Use ExpressRoute connections for on-premises communication Reachability summary 1 can reach 2, 3, 4. 5 can reach 1, 4. 5 can’t reach 2, 3, 6 directly, but can via an NVA in 1 Peering US West Peering US East 5 6 Global VNet peering 1 2 4 3 © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Routing with VNet Service Endpoints
5/19/2018 8:07 AM Routing with VNet Service Endpoints VNet Service Endpoints extends VNet to multitenant Azure services Block access from Internet Allow access only from VNet (or a subnet) or specific IPs ExpressRoute provides on-premises access Service IPs advertised on Azure Public Peering or Microsoft Peering Lock the access by IP-based ACL VNet-to-service traffic always stays on Microsoft network Even when “force-tunneling” is enabled Microsoft Azure Internet Azure Storage Azure SQL Private access Microsoft peering Azure public peering Customer VNET GW subnet App subnet © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Encrypting traffic over ExpressRoute
“Bring your own VPN” IPsec tunnels on Azure Private Peering Two instances for redundancy and performance Set up an internal LB instance with “HA port” Set up a UDR to route VM traffic to the internal LB Use Azure VPN gateway (after merging of Microsoft Peering and Azure Public Peering) IPsec tunnels on Microsoft Peering Advertise the on-prem VPN gateway IP on Microsoft Peering Set up BGP between the on-prem VPN and Azure VPN gateway Customer VNET 3rd party VPN Azure Private peering GW subnet ILB App subnet Customer VNET Microsoft peering GW subnet App subnet

IP whitelisting at customer’s premises
Whitelist Azure public IPs Change frequently Use PowerShell to retrieve the list Whitelist Microsoft public IPs Have larger blocks of IPs Apply URL-based filtering For example: outlook.office365.com, *.outlook.com, <storage-account>.blob.core.windows.net Internet SaaS Firewall Azure public peering Microsoft peering Customer’s premise Microsoft Azure

T-Mobile

Azure Networking @ T-Mobile
GOPALA GADDIPATTI Principal Architect T-Mobile Confidential

About T-Mobile As America's Un-carrier, T-Mobile US, Inc. is redefining the way consumers and businesses buy wireless services through leading product and service innovation. NASDAQ traded public company – TMUS Operating two flagship brands: T-Mobile and MetroPCS Based in Bellevue, Washington

Q2 2017 HIGHLIGHTS 1.3 315 14 69.6 1.10% Million Million Quarters
Phone Churn Net Adds 17th consecutive quarter of over 1 million Americans covered by T-Mobile LTE today In a row with the fastest download speeds Total Customers Record-Low Targeting 321 million by the end of 2017

T-Mobile Digital Strategy
Unified User Experience Web Transformation Application Transformation Self Service Simple to Deploy Automation No Capacity challenges Agile Platforms Dev & Ops A & B - Deployment CI/CD Everything as Code Immutable Infra DevOps

Customer Security is Important to T-Mobile
Network Security Secure Connectivity Network Segregation Intrusion Detection & Prevention Access Control Application Security Security throughout SDLC Data Security Http Vulnerabilities, DoS/DDoS protection Authentication and Authorization Audit + Compliance External Audits Security Monitoring Vulnerability Management SIEM Management

1 2 3 4 5 ExpressRoute – Azure Connectivity with T-Mobile
Azure West Azure Central 1 Physical Circuit redundancy —Two 10G circuits 2 Geo Redundancy — Azure West and Central 3 Port redundancy — Two physical ports 4 Segregation — Virtual circuits based on Inf. Security 5 Monitoring — ARP Records, Route Table

T-Mobile Azure Network
Separate Subscriptions for PCI and CPNI applications 1 Dedicated Resource Group for Network (Vnet’s, Express route etc) 2 RBAC’s to limit network management 3 Default Deny policy 4 Dedicated Virtual Circuits 5 6 Each Vnet connected with two express route circuits

Expand and Contract Vnet’s
We Love Azure Networking Features DevOps Friendly Expand and Contract Vnet’s Network Monitoring Cost Effective

Most Popular T-Mobile Application On Azure
Every Tuesday Users receive Free gifts T-Mobile Tuesday Customer appreciation application Chance to win a big prizes Every day exclusives

T-Mobile Confidential

Office 365 & Dynamics 365

ExpressRoute and Office 365
ExpressRoute for Office 365 is only recommended in specific scenarios Regulatory requirements that mandate a private connection Network assessment for Skype for Business that shows network deficiencies that ExpressRoute can address Enabling Office 365 requires review and approval from Microsoft You will fail to create route filters for Office 365 if your subscription is not whitelisted More info on

ExpressRoute and Dynamics 365
Dynamics 365 on ExpressRoute is self-service Dynamics 365 Customer Engagement applications (i.e. CRM Online) is available on Microsoft Peering Dynamics 365 for Sales Dynamics 365 for Customer Service Dynamics 365 for Field Service Dynamics 365 for Project Service Dynamics 365 for Finance and Operations (i.e. Dynamics AX Online) is available on Azure Public Peering or new Microsoft Peering © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Summary Growing ExpressRoute sites and partners
5/19/2018 8:07 AM Summary Growing ExpressRoute sites and partners New features to improve reliability and monitoring, simplify route and peering management More circuits and more features mean more sophisticated deployment, which demands careful network design and planning © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Please evaluate this session
Tech Ready 15 5/19/2018 Please evaluate this session From your Please expand notes window at bottom of slide and read. Then Delete this text box. PC or tablet: visit MyIgnite Phone: download and use the Microsoft Ignite mobile app Your input is important! © 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Azure ExpressRoute: new features, best practices, customer experiences

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