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Copy file name to clipboardExpand all lines: articles/networking/working-remotely-support.md
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# Azure network support for mitigating networking challenges with working remotely
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This article describes how you can leverage the networking services in Azure to enable working remotely. In addition, you it includes links to articles that describe how to mitigate traffic issues resulting from increased number of people working from home due to the COVID-19 crisis.
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This article describes how you can leverage Azure networking services to enable working remotely and how to mitigate traffic issues resulting from increased number of people working from home due to the COVID-19 crisis.
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The Covid-19 (Corona virus) contagion has created unprecedented global crisis, resulting in lockdown of many cities and countries across the globe. This crisis has forced most people across a wide range of industries to work from home. Yet, there is an urgency to act; and the onus to act is on all of us. We all need to do the best we can to stop the contagion spreading, to help the first-responders battle the disease and cure those who have got infected, to maintain the productivity and availability of the necessities all over the world.
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Network architects everywhere are challenged to deal with steep increases in network utilization, to provide reliable-secure connectivity to all the employees of their company and customers, and to provide connectivity to remote locations across the globe. The pre- and post- (Covid-19) lockdown Internet traffic analysis reveal, as more people are settling down to work from home on a regular basis the home broadband network usage is experiencing significant increase in utilization. The traffic patterns are also changing, the usual weekend and night-time network troughs are vanishing. For example, the in Seattle area, in the beginning of March (after several companies in area requested employees to work from home) the Internet traffic has gone up by 40% compared to the usage in the area in January of this year. The night-time network usage trough in March is greater than the average day-time usage in January. Similar analysis in Italy shows a 30% increase. The trend is similar in all the lockdown areas.
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Network architects everywhere are faced with the following challenges:
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- address the steep increase in network utilization
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- provide reliable-secure connectivity to all the employees of their company and customers,
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- provide connectivity to remote locations across the globe.
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The pre- and post- Covid-19 lockdown Internet traffic analysis reveal that as more people are settling down to work from home on a regular basis, the home broadband network usage is experiencing significant increase in utilization. The traffic patterns are also changing, the usual weekend and night-time network troughs are vanishing. For example, in the Seattle area, in the beginning of March (after several companies in area requested employees to work from home), the Internet traffic has gone up by 40% compared to the usage in the area in January of this year. The night-time network usage trough in March is greater than the average day-time usage in January. Similar analysis in Italy shows a 30% increase. The trend is similar in all the lockdown areas.
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However, not all network segments (for example, the Internet backbone), private WAN, and corporate core networks are experiencing the pinch. The bottlenecks are commonly reported in home broadband networks and more particularly in the neighborhoods served by lower cable connections, VPN gateways of on-premises networks of corporations/enterprises.
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Keeping in mind that different traffic types need different network treatment priorities and some smart load redirection/distribution, network planners can help ease the bottlenecks and alleviate the network congestion. For example, real-time tele-medicine traffic of doctor-patient interaction is of high importance and delay/jitter sensitive. Whereas replication of the same traffic between storages is not delay sensitive. The former traffic must be routed via the most optimal network path with higher quality of service; whereas it is acceptable to route the later traffic via sub-optimal route.
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Keeping in mind that different traffic types need different network treatment priorities and some smart load redirection/distribution, network planners can help ease the bottlenecks and alleviate the network congestion. For example, real-time telemedicine traffic of doctor-patient interaction is of high importance and delay/jitter sensitive. Whereas replication of the same traffic between storages is not delay sensitive. The former traffic must be routed via the most optimal network path with higher quality of service; whereas it is acceptable to route the later traffic via sub-optimal route.
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>[!NOTE]
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>Towards the end of this article, links for Covid-19 preparation articles leveraging different Azure networking features and ecosystems are listed.
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Using any of the Azure features described below leverages the traffic attraction edge behavior of the Microsoft world-wide network; thereby, off loading traffic from the critically congested first/last mile networks as soon as possible.
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## Enabling employees to work remotely
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## Enable employees to work remotely
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Azure scalable VPN gateway support both Point-to-Site (P2S) and Site-to-Site (S2S) VPN connections. Using Azure VPN gateway you can scale your employee's connections to securely access both your Azure deployed resources and your on-premises resources. See the article [How to enable users to work remotely][VPN] for further details.
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Azure scalable VPN gateway support both Point-to-Site (P2S) and Site-to-Site (S2S) VPN connections. Using Azure VPN gateway you can scale your employee's connections to securely access both your Azure deployed resources and your on-premises resources. For more information, see [How to enable users to work remotely](https://go.microsoft.com/fwlink/?linkid=2123770).
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If you are using SSTP, the number of concurrent connections would be limited to 128. To overcome this limitation we suggest transitioning to OpenVPN or IKEv2. See [Transition to OpenVPN protocol or IKEv2 from SSTP][OpenVPN].
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If you are using SSTP, the number of concurrent connections would be limited to 128. To overcome this limitation we suggest transitioning to OpenVPN or IKEv2. For more information, see [Transition to OpenVPN protocol or IKEv2 from SSTP](https://go.microsoft.com/fwlink/?linkid=2124112).
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To access your resources deployed in Azure, remote employees could use Azure Bastion solution, instead of VPN connection. See [Azure Bastion COVID-19 update][Bastion] for further details.
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To access your resources deployed in Azure, remote employees could use Azure Bastion solution, instead of VPN connection. For more information, see [Azure Bastion COVID-19 update](https://go.microsoft.com/fwlink/?linkid=2123939) for further details.
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For aggregating large-scale VPN connection, to support any-to-any connections between resources in different on-prem global locations, in different regional hub and spoke virtual networks, and to optimize utilization of multiple home broadband networks you can use Azure Virtual WAN. See [Struggling to cater to work from home needs? Here is where Azure Virtual WAN can help][VWAN] for further details.
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For aggregating large-scale VPN connection, to support any-to-any connections between resources in different on-prem global locations, in different regional hub and spoke virtual networks, and to optimize utilization of multiple home broadband networks you can use Azure Virtual WAN. For more information, see [Struggling to cater to work from home needs? Here is where Azure Virtual WAN can help](https://go.microsoft.com/fwlink/?linkid=2123769).
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Azure also has a rich set of eco system partners. Our partners Network Virtual Appliances on Azure can also help scale VPN connectivity. See [Network Virtual Appliance (NVA) Considerations during COVID-19][NVA] for further details.
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Azure also has a rich set of eco system partners. Our partners Network Virtual Appliances on Azure can also help scale VPN connectivity. For more information, see [Network Virtual Appliance (NVA) Considerations during COVID-19](https://go.microsoft.com/fwlink/?linkid=2123771).
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## Enabling employees to access globally distributed on-premises resources
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## Enable employees to access globally distributed on-premises resources
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Using ExpressRoute Global Reach, Azure VPN gateway, or Azure Virtual WAN services, you can establish connectivity between your different on-premises network across globe.
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Use ExpressRoute Global Reach, Azure VPN gateway, or Azure Virtual WAN services to establish connectivity between your different on-premises network across globe.
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## Scaling customer connectivity to frontend resources
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## Scale customer connectivity to frontend resources
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Lockdown is forcing people to go online. Even those who are not used to online transactions are now forced to do so. This results in increased customer traffic to many corporate websites Azure Application Gateway can help managing this increased frontend workload. See [Application Gateway COVID-19 Update] for further details.
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Lockdown is forcing people to go online. Even those who are not used to online transactions are now forced to do so. This results in increased customer traffic to many corporate websites Azure Application Gateway can help managing this increased frontend workload. For more information, see[Application Gateway COVID-19 Update](https://go.microsoft.com/fwlink/?linkid=2123940).
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## Microsoft support for multi-cloud traffic
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## Next steps
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Following are the Covid-19 preparation articles leveraging different Azure networking features.
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Following are the Covid-19 preparation articles leveraging different Azure networking features:
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