Re: [dnssd] Solicit feedback on the problems of DNS for Cloud Resources described by the draft-ietf-rtgwg-net2cloud-problem-statement

David Schinazi <> Tue, 11 February 2020 20:37 UTC

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From: David Schinazi <>
Date: Tue, 11 Feb 2020 12:37:29 -0800
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To: Linda Dunbar <>
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Subject: Re: [dnssd] Solicit feedback on the problems of DNS for Cloud Resources described by the draft-ietf-rtgwg-net2cloud-problem-statement
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Hi Linda,

I think you may have the wrong IETF list.
DNSSD is about DNS Service Discovery (RFC 6763),
not general-purpose DNS. I think you want


On Tue, Feb 11, 2020 at 11:28 AM Linda Dunbar <>

> DNS experts,
> describes the problems that enterprises face today when interconnecting
> their branch offices with dynamic workloads in third party data centers
> (a..k.a. Cloud DCs).
> There can be many problems associated with network connecting to or among
> Clouds, many of which probably are out of the IETF scope. The objective of
> this document is to identify some of the problems that need additional work
> in IETF Routing area. Other problems are out of the scope of this document.
> During IETF 106, we received comments that the document should cover the
> problems associated with DNS service by different Cloud Operators for
> Enterprise to utilize Cloud Resources even though DNS is not within the
> scope of IETF routing area.  We greatly appreciate DNS experts to provide
> comments to our description.
> 3.4 DNS for Cloud Resources
> DNS name resolution is essential for on-premises and cloud-based
> resources. For customers with hybrid workloads, which include on-premises
> and cloud-based resources, extra steps are necessary to configure DNS to
> work seamlessly across both environments.
> Cloud operators have their own DNS to resolve resources within their Cloud
> DCs and to well-known public domains. Cloud’s DNS can be configured to
> forward queries to customer managed authoritative DNS servers hosted
> on-premises, and to respond to DNS queries forwarded by on-premises DNS
> servers.
> For enterprises utilizing Cloud services by different cloud operators, it
> is necessary to establish policies and rules on how/where to forward DNS
> queries to. When applications in one Cloud need to communication with
> applications hosted in another Cloud, there could be DNS queries from one
> Cloud DC being forwarded to the enterprise’s on premise DNS, which in turn
> be forwarded to the DNS service in another Cloud. Needless to say,
> configuration can be complex depending on the application communication
> patterns.
> Thank you very much.
> Linda Dunbar
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