25 Extensible Provisioning Protocol (EPP)

Prototypical answer:

25 EXTENSIBLE PROVISIONING PROTOCOL (EPP)


1 COMPLETE KNOWLEDGE AND UNDERSTANDING OF THIS ASPECT OF REGISTRY TECHNICAL REQUIREMENTS

Verisign, IG Group’s selected backend registry services provider, has used Extensible Provisioning Protocol (EPP) since its inception and possesses complete knowledge and understanding of EPP registry systems. Its first EPP implementation— for a thick registry for the .name generic top-level domain (gTLD)—was in 2002. Since then Verisign has continued its RFC-compliant use of EPP in multiple TLDs, as detailed in Figure 25-1.

Verisign’s understanding of EPP and its ability to implement code that complies with the applicable RFCs is unparalleled. Mr. Scott Hollenbeck, Verisign’s director of software development, authored the Extensible Provisioning Protocol and continues to be fully engaged in its refinement and enhancement (U.S. Patent Number 7299299 – Shared registration system for registering domain names). Verisign has also developed numerous new object mappings and object extensions following the guidelines in RFC 3735 (Guidelines for Extending the Extensible Provisioning Protocol). Mr. James Gould, a principal engineer at Verisign, led and co-authored the most recent EPP Domain Name System Security Extensions (DNSSEC) RFC effort (RFC 5910).

All registry systems for which Verisign is the registry operator or provides backend registry services use EPP. Upon approval of this application, Verisign will use EPP to provide the backend registry services for this gTLD. The .com, .net, and .name registries for which Verisign is the registry operator use an SRS design and approach comparable to the one proposed for this gTLD. Approximately 915 registrars use the Verisign EPP service, and the registry system performs more than 140 million EPP transactions daily without performance issues or restrictive maintenance windows. The processing time service level agreement (SLA) requirements for the Verisign-operated .net gTLD are the strictest of the current Verisign managed gTLDs. All processing times for Verisign-operated gTLDs can be found in ICANN’s Registry Operator’s Monthly Reports at http:⁄⁄www.icann.org⁄en⁄tlds⁄monthly-reports⁄.

Verisign has also been active on the Internet Engineering Task Force (IETF) Provisioning Registry Protocol (provreg) working group and mailing list since work started on the EPP protocol in 2000. This working group provided a forum for members of the Internet community to comment on Mr. Scott Hollenbeck’s initial EPP drafts, which Mr. Hollenbeck refined based on input and discussions with representatives from registries, registrars, and other interested parties. The working group has since concluded, but the mailing list is still active to enable discussion of different aspects of EPP.



1.1 EPP INTERFACE WITH REGISTRARS

Verisign, IG Group’s selected backend registry services provider, fully supports the features defined in the EPP specifications and provides a set of software development kits (SDK) and tools to help registrars build secure and stable interfaces. Verisign’s SDKs give registrars the option of either fully writing their own EPP client software to integrate with the Shared Registration System (SRS), or using the Verisign-provided SDKs to aid them in the integration effort. Registrars can download the Verisign EPP SDKs and tools from the registrar website (http:⁄⁄www.Verisign.com⁄domain-name-services⁄current-registrars⁄epp-sdk⁄index.html).

The EPP SDKs provide a host of features including connection pooling, Secure Sockets Layer (SSL), and a test server (stub server) to run EPP tests against. One tool—the EPP tool—provides a web interface for creating EPP Extensible Markup Language (XML) commands and sending them to a configurable set of target servers. This helps registrars in creating the template XML and testing a variety of test cases against the EPP servers. An Operational Test and Evaluation (OT&E) environment, which runs the same software as the production system so approved registrars can integrate and test their software before moving into a live production environment, is also available.



2 TECHNICAL PLAN SCOPE⁄SCALE CONSISTENT WITH THE OVERALL BUSINESS APPROACH AND PLANNED SIZE OF THE REGISTRY

Verisign, IG Group’s selected backend registry services provider, is an experienced backend registry provider that has developed and uses proprietary system scaling models to guide the growth of its TLD supporting infrastructure. These models direct Verisign’s infrastructure scaling to include, but not be limited to, server capacity, data storage volume, and network throughput that are aligned to projected demand and usage patterns. Verisign periodically updates these models to account for the adoption of more capable and cost-effective technologies.

Verisign’s scaling models are proven predictors of needed capacity and related cost. As such, they provide the means to link the projected infrastructure needs of the .trading gTLD with necessary implementation and sustainment cost. Using the projected usage volume for the most likely scenario (defined in Question 46, Template 1 – Financial Projections: Most Likely) as an input to its scaling models, Verisign derived the necessary infrastructure required to implement and sustain this gTLD. Verisign’s pricing for the backend registry services it provides to IG Group fully accounts for cost related to this infrastructure, which is provided as “Total Critical Registry Function Cash Outflows” (Template 1, Line IIb.G) within the Question 46 financial projections response.



3 TECHNICAL PLAN THAT IS ADEQUATELY RESOURCED IN THE PLANNED COSTS DETAILED IN THE FINANCIAL SECTION

Verisign, IG Group’s selected backend registry services provider, is an experienced backend registry provider that has developed a set of proprietary resourcing models to project the number and type of personnel resources necessary to operate a TLD. Verisign routinely adjusts these staffing models to account for new tools and process innovations. These models enable Verisign to continually right-size its staff to accommodate projected demand and meet service level agreements as well as Internet security and stability requirements. Using the projected usage volume for the most likely scenario (defined in Question 46, Template 1 – Financial Projections: Most Likely) as an input to its staffing models, Verisign derived the necessary personnel levels required for this gTLD’s initial implementation and ongoing maintenance. Verisign’s pricing for the backend registry services it provides to IG Group fully accounts for cost related to this infrastructure, which is provided as “Total Critical Registry Function Cash Outflows” (Template 1, Line IIb.G) within the Question 46 financial projections response.

Verisign employs more than 1,040 individuals of which more than 775 comprise its technical work force. (Current statistics are publicly available in Verisign’s quarterly filings.) Drawing from this pool of on-hand and fully committed technical resources, Verisign has maintained DNS operational accuracy and stability 100 percent of the time for more than 13 years for .com, proving Verisign’s ability to align personnel resource growth to the scale increases of Verisign’s TLD service offerings.

Verisign projects it will use the following personnel roles, which are described in Section 5 of the response to Question 31, Technical Overview of Proposed Registry, to support the provisioning of EPP services:

- Application Engineers: 19

- Database Engineers: 3

- Quality Assurance Engineers: 11

To implement and manage the .trading gTLD as described in this application, Verisign, IG Group’s selected backend registry services provider, scales, as needed, the size of each technical area now supporting its portfolio of TLDs. Consistent with its resource modeling, Verisign periodically reviews the level of work to be performed and adjusts staff levels for each technical area.

When usage projections indicate a need for additional staff, Verisign’s internal staffing group uses an in-place staffing process to identify qualified candidates. These candidates are then interviewed by the lead of the relevant technical area. By scaling one common team across all its TLDs instead of creating a new entity to manage only this proposed gTLD, Verisign realizes significant economies of scale and ensures its TLD best practices are followed consistently. This consistent application of best practices helps ensure the security and stability of both the Internet and this proposed TLD, as Verisign holds all contributing staff members accountable to the same procedures that guide its execution of the Internet’s largest TLDs (i.e., .com and .net). Moreover, by augmenting existing teams, Verisign affords new employees the opportunity to be mentored by existing senior staff. This mentoring minimizes start-up learning curves and helps ensure that new staff members properly execute their duties.



4 ABILITY TO COMPLY WITH RELEVANT RFCS

Verisign, IG Group’s selected backend registry services provider, incorporates design reviews, code reviews, and peer reviews into its software development lifecycle (SDLC) to ensure compliance with the relevant RFCs. Verisign’s dedicated QA team creates extensive test plans and issues internal certifications when it has confirmed the accuracy of the code in relation to the RFC requirements. Verisign’s QA organization is independent from the development team within engineering. This separation helps Verisign ensure adopted processes and procedures are followed, further ensuring that all software releases fully consider the security and stability of the TLD.

For the .trading gTLD, the Shared Registration System (SRS) complies with the following IETF EPP specifications, where the XML templates and XML schemas are defined in the following specifications:

- EPP RGP 3915 (http:⁄⁄www.apps.ietf.org⁄rfc⁄rfc3915.html): EPP Redemption Grace Period (RGP) Mapping specification for support of RGP statuses and support of Restore Request and Restore Report (authored by Verisign’s Scott Hollenbeck)

- EPP 5730 (http:⁄⁄tools.ietf.org⁄html⁄rfc5730): Base EPP specification (authored by Verisign’s Scott Hollenbeck)

- EPP Domain 5731 (http:⁄⁄tools.ietf.org⁄html⁄rfc5731): EPP Domain Name Mapping specification (authored by Verisign’s Scott Hollenbeck)

- EPP Host 5732 (http:⁄⁄tools.ietf.org⁄html⁄rfc5732): EPP Host Mapping specification (authored by Verisign’s Scott Hollenbeck)

- EPP Contact 5733 (http:⁄⁄tools.ietf.org⁄html⁄rfc5733): EPP Contact Mapping specification (authored by Verisign’s Scott Hollenbeck)

- EPP TCP 5734 (http:⁄⁄tools.ietf.org⁄html⁄rfc5734): EPP Transport over Transmission Control Protocol (TCP) specification (authored by Verisign’s Scott Hollenbeck)

- EPP DNSSEC 5910 (http:⁄⁄tools.ietf.org⁄html⁄rfc5910): EPP Domain Name System Security Extensions (DNSSEC) Mapping specification (authored by Verisign’s James Gould and Scott Hollenbeck)



5 PROPRIETARY EPP EXTENSIONS

Verisign, IG Group’s selected backend registry services provider, uses its SRS to provide registry services. The SRS supports the following EPP specifications, which Verisign developed following the guidelines in RFC 3735, where the XML templates and XML schemas are defined in the specifications:

- IDN Language Tag (http:⁄⁄www.verisigninc.com⁄assets⁄idn-language-tag.pdf): EPP internationalized domain names (IDN) language tag extension used for IDN domain name registrations

- RGP Poll Mapping (http:⁄⁄www.verisigninc.com⁄assets⁄whois-info-extension.pdf): EPP mapping for an EPP poll message in support of Restore Request and Restore Report

- Whois Info Extension (http:⁄⁄www.verisigninc.com⁄assets⁄whois-info-extension.pdf): EPP extension for returning additional information needed for transfers

- EPP ConsoliDate Mapping (http:⁄⁄www.verisigninc.com⁄assets⁄consolidate-mapping.txt): EPP mapping to support a Domain Sync operation for synchronizing domain name expiration dates

- NameStore Extension (http:⁄⁄www.verisigninc.com⁄assets⁄namestore-extension.pdf): EPP extension for routing with an EPP intelligent gateway to a pluggable set of backend products and services

- Low Balance Mapping (http:⁄⁄www.verisigninc.com⁄assets⁄low-balance-mapping.pdf): EPP mapping to support low balance poll messages that proactively notify registrars of a low balance (available credit) condition

As part of the 2006 implementation report to bring the EPP RFC documents from Proposed Standard status to Draft Standard status, an implementation test matrix was completed. Two independently developed EPP client implementations based on the RFCs were tested against the Verisign EPP server for the domain, host, and contact transactions. No compliance-related issues were identified during this test, providing evidence that these extensions comply with RFC 3735 guidelines and further demonstrating Verisign’s ability to design, test, and deploy an RFC-compliant EPP implementation.



5.1 EPP TEMPLATES AND SCHEMAS

The EPP XML schemas are formal descriptions of the EPP XML templates. They are used to express the set of rules to which the EPP templates must conform in order to be considered valid by the schema. The EPP schemas define the building blocks of the EPP templates, describing the format of the data and the different EPP commands’ request and response formats. The current EPP implementations managed by Verisign, IG Group’s selected backend registry services provider, use these EPP templates and schemas, as will the proposed TLD. For each proprietary XML template⁄schema Verisign provides a reference to the applicable template and includes the schema.




XML TEMPLATES⁄SCHEMA FOR IDNLANG-1.0

- Template: The templates for idnLang-1.0 can be found in Chapter 3, EPP Command Mapping of the relevant EPP documentation, http:⁄⁄www.verisigninc.com⁄assets⁄idn-language-tag.pdf.

- Schema is set out in Figure 25-2
This schema describes the extension mapping for the IDN language tag. The mapping extends the EPP domain name mapping to provide additional features required for the provisioning of IDN domain name registrations.




XML TEMPLATES⁄SCHEMA FOR RGP-POLL-1.0

- Template: The templates for rgp-poll-1.0 can be found in Chapter 3, EPP Command Mapping of the relevant EPP documentation, http:⁄⁄www.verisigninc.com⁄assets⁄rgp-poll-mapping.pdf.

- Schema is set out in Figure 25-3:
This schema describes the extension mapping for poll notifications. The mapping extends the EPP base mapping to provide additional features for registry grace period (RGP) poll notifications.




XML TEMPLATES⁄SCHEMA FOR WHOISINF-1.0

- Template: The templates for whoisInf-1.0 can be found in Chapter 3, EPP Command Mapping of the relevant EPP documentation, http:⁄⁄www.verisigninc.com⁄assets⁄whois-info-extension.pdf.

- Schema is set out in Figure 25-4:
This schema describes the extension mapping for the Whois Info extension. The mapping extends the EPP domain name mapping to provide additional features for returning additional information needed for transfers.




XML TEMPLATES⁄SCHEMA FOR SYNC-1.0 (CONSOLIDATE)

- Template: The templates for sync-1.0 can be found in Chapter 3, EPP Command Mapping of the relevant EPP documentation, http:⁄⁄www.verisigninc.com⁄assets⁄consolidate-mapping.txt.

- Schema is set out in Figure 25-5:
This schema describes the extension mapping for the synchronization of domain name registration period expiration dates. This service is known as ʺConsoliDate.ʺ The mapping extends the EPP domain name mapping to provide features that allow a protocol client to end a domain name registration period on a specific month and day.




XML TEMPLATES⁄SCHEMA FOR NAMESTOREEXT-1.1

- Template: The templates for namestoreExt-1.1 can be found in Chapter 3, EPP Command Mapping of the relevant EPP documentation, http:⁄⁄www.verisigninc.com⁄assets⁄namestore-extension.pdf.

- Schema is set out in Figure 25-6:
This schema describes the extension mapping for the routing with an EPP intelligent gateway to a pluggable set of backend products and services. The mapping extends the EPP domain name and host mapping to provide a sub-product identifier to identify the target sub-product that the EPP operation is intended for.




XML TEMPLATES⁄SCHEMA FOR LOWBALANCE-POLL-1.0

- Template: The templates for lowbalance-poll-1.0 can be found in Chapter 3, EPP Command Mapping of the relevant EPP documentation, http:⁄⁄www.verisigninc.com⁄assets⁄low-balance-mapping.pdf.

- Schema is set out in Figure 25-7:
This schema describes the extension mapping for the account low balance notification. The mapping extends the EPP base mapping so an account holder can be notified via EPP poll messages whenever the available credit for an account reaches or goes below the credit threshold.




6 PROPRIETARY EPP EXTENSION CONSISTENCY WITH REGISTRATION LIFECYCLE

IG Group’s selected backend registry services provider’s (Verisign’s) proprietary EPP extensions, defined in Section 5 above, are consistent with the registration lifecycle documented in the response to Question 27, Registration Lifecycle. Details of the registration lifecycle are presented in that response. As new registry features are required, Verisign develops proprietary EPP extensions to address new operational requirements. Consistent with ICANN procedures Verisign adheres to all applicable Registry Services Evaluation Process (RSEP) procedures.

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