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Network Working Group                                      K. O'Donoghue
Internet-Draft                                             IETF NOC Team
Intended status: Informational                             July 08, 2019
Expires: January 9, 2020


                   IETF Meeting Network Requirements
                      draft-odonoghue-netrqmts-01

Abstract

   The IETF Meeting Network has become integral to the success of any
   physical IETF meeting.  Building such a network, which provides
   service to thousands of heavy users and their multitude of devices,
   spread throughout the event venue, with very little time for setup
   and testing is a challenge.  This document provides a set of
   requirements, derived from hard won experience, as an aid to anyone
   involved in designing and deploying such future networks.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 9, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of



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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  External Connectivity . . . . . . . . . . . . . . . . . . . .   3
   3.  Meeting Facility  . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Internal Network  . . . . . . . . . . . . . . . . . . . . . .   5
   5.  Terminal Room or equivalent . . . . . . . . . . . . . . . . .   5
   6.  Wireless  . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   7.  Services  . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   8.  Network Monitoring  . . . . . . . . . . . . . . . . . . . . .   6
   9.  Miscellaneous Requirements  . . . . . . . . . . . . . . . . .   7
   10. Security Considerations . . . . . . . . . . . . . . . . . . .   7
   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   12. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
   13. Revision comments . . . . . . . . . . . . . . . . . . . . . .   8
   14. Normative References  . . . . . . . . . . . . . . . . . . . .   8
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   The IETF Meeting Network has grown and evolved over time as has the
   IETF overall.  In addition, the way that the IETF network is built
   and provisioned has also changed.  It is time for the IETF community
   to consider the requirements of this infrastructure and its role in
   supporting the mission of the IETF.  This document is meant to help
   frame that conversation.  Additionally, this document may eventually
   be developed to be useful to others outside the IETF in specifying
   and building their own successful event networks.

   This document is currently being revised as part of an IETF community
   discussion on the network requirements for the IETF meeting network.
   Version -00 represents the requirements as articulated the last time
   these requirements was documented by the IETF NOC Team
   (https://www.ietf.org/how/meetings/admin/meeting-network-
   requirements/).  The current draft plan is to update to a -01 that
   represents the requirements the IETF NOC Team currently builds to.
   Versions beyond that will represent input received from the
   community.  A final version of this document may or may not be
   published depending on the desires of the IETF community and the
   potential usefulness of a document of this sort outside the scope of
   the IETF.






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1.1.  Terminology

   In this document, the key words "MUST", "MUST NOT", "REQUIRED",
   "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY",
   and "OPTIONAL" are to be interpreted as described in BCP 14, RFC 2119
   [RFC2119].

2.  External Connectivity

   o  A primary and backup link MUST be provided for redundancy.  If
      technically feasible, these links SHOULD be aggregated or load
      balanced.

   o  The primary and backup links MUST provide at least 1 Gbps
      bandwidth in both directions.

   o  Recent events have peaked at roughly 850 Mbs and averaged in the
      100-300 Mbps range.

   o  The backup link SHOULD be supplied by a different Internet service
      provider from the primary link.

   o  The primary and backup links SHOULD have physical and logical path
      diversity.

   o  IPv6 MUST be provided.

   o  The transit provided in support of the IETF MUST be capable of
      providing access to the IPv4 and IPv6 default free zones without
      the imposition of content filtering (e.g., URL, Site, application,
      port, or DPI based filtering).

   o  The primary and secondary links MUST support BGP peering.

   o  The provider(s) MUST allow the IETF to advertise (from the IETF AS
      number) the IETF IPv4 and IPv6 address ranges.

   o  The provider(s) MUST implement IRR (or better) route filtering.

   o  The provider(s) SHOULD carry and advertise full BGP tables.

   o  The provider(s) SHOULD implement BGP communities, especially the
      ability to RTBH.








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3.  Meeting Facility

   o  The meeting facility SHOULD have physical characteristics that
      support the deployment of additional wireless networks including
      techniques to limit interference where possible (?? or something
      along those lines).

   o  The meeting facility SHOULD have installed network cabling that
      can be used to deploy the network infrastructure. (?? is this a
      should or must, are we past the days of running cable if we need
      to... )

   o  The meeting facility SHOULD provide the network installation team
      with 24 hour access to key telecom spaces.  The meeting facility
      MUST provide the network installation team with access to key
      telecom spaces from one hour prior to the beginning of sessions to
      one hour after the end of sessions and 9am to 5pm daily during the
      setup period. (?? are these the right timeframes)

   o  All locations for network gear, with the exception of wireless
      APs, MUST be secure.

   o  If wireless will be used for an external link then access to the
      roof or installed location MUST be provided.

   o  The meeting facility MUST have adequate ventilation to support the
      equipment rooms and the terminal room.

   o  The meeting facility MUST have adequate power available to support
      the equipment required to support the network infrastructure and
      its users.  This may include 110v/220v requirements in technical
      closets, roof locations, and various public and back-of-the-house
      areas.

   o  The meeting facility The meeting facility SHOULD have UPS power
      available to support key network infrastructure components,
      including at least the core routers, core switches, and hardware
      to maintain the external links.

   o  The meeting facility MUST provide sufficient power in all meeting
      rooms to handle the projected load from users' laptops.  The
      projected load is for simultaneous usage for 100% of the projected
      number of attendees in each meeting room and the number of laptop
      users and projecting 70 watts of power usage per laptop. (?? do we
      want to provide actual power estimates?)






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4.  Internal Network

   o  Wired Ethernet connections (network drops) MUST be provided in all
      the locations used for meeting rooms to support audio and video
      distribution for the purposes of remote participation.

   o  Wired network drops MUST be provided to the registration desk. (??
      need to confirm what the reg desk actually needs)

   o  The network SHOULD have separate VLANS for wired (primarily
      terminal room and audio) and wireless traffic.

   o  The network MUST NOT prohibit end-to-end and external connectivity
      for any traffic (no limiting firewalls or NATs).

   o  The network SHOULD have mechanisms for detecting and silencing
      rogue servers (DHCP, IPv6 RA<92>s, etc)

5.  Terminal Room or equivalent

   o  A terminal room or quiet work space MUST be provided.  This room
      MAY be a single room or distributed sites in reasonable proximity
      to the meeting rooms.

   o  The terminal room SHOULD provide access to some number of wired
      Ethernet drops in addition to the standard wireless network.

   o  The IETF users MUST have access to the terminal room from ?? to
      ??.

   o  The terminal room MUST provide at least one network connected
      enterprise class printer.  These printers SHOULD have duplex
      capability.

   o  A color printer MAY be provided.

   o  There SHOULD be a manned help desk from from ?? to ??. The help
      desk provides technical assistance to attendees, provides one
      potential interface to the trouble ticket system, and maintains
      the printers.

   o  Power strips MUST be provided in the terminal room.

   o  Power strips MAY be provided in common gathering areas
      (desirable).






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6.  Wireless

   o  The network MUST provide Wi-Fi coverage in all meeting rooms (as
      identified by the Secretariat), common gathering spaces around the
      meeting rooms, the registration area, and the terminal room.

   o  The network SHOULD provide Wi-Fi coverage in additional common
      spaces in the meeting venue including the lobby, bar, restaurant,
      and most commonly used hallways of the primary meeting hotel(s).

   o  The network design MUST anticipate simultaneous usage of 100% of
      the projected number of attendees in each meeting room.  and the
      number of wireless network users (historical utilization in excess
      of 1000 simultaneous wireless users has been observed during a
      plenary session).

   o  The network MAY provide separate SSIDs for different specific
      requirements.

   o  The network MUST provide at least one secure SSID and one open
      SSID.

   o  The network MAY provide additional secured wireless access.

   o  There SHOULD be mechanisms for identifying and silencing rogue
      Wireless Access Points.

7.  Services

   o  The network MUST provide redundant DHCPv4 servers.

   o  The network SHOULD provide DHCPv6 service.

   o  The network MUST provide local redundant DNS servers.

   o  The network SHOULD provide NTP.

   o  Printers MUST support IPP and SHOULD support LPR and Windows
      printing.

   o  The network MUST provide VMs for the Remote Participation Service.

8.  Network Monitoring

   o  The network MUST provide sufficient monitoring to ensure adequate
      network availability and to detect faults before they impact the
      user experience.




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   o  The network SHOULD provide some visibility into the state of the
      network for attendees (e.g. public graphs of network utilization,
      number of wireless associations, etc.).

   o  The network MUST collect data for future use in scaling IETF
      meeting network requirements.  Minimum required metrics include
      bandwidth utilization (average and peak) for each external
      connection and user density per AP and radio.

   o  The network provider SHOULD provide SNMP read-only access to the
      network devices to individuals as identified by the Secretariat
      for network management and planning purposes.

9.  Miscellaneous Requirements

   o  The network provider SHOULD maintain spares of critical network
      components on-site.

   o  Attendees SHOULD be notified of power connector requirements well
      in advance of the meeting via both the IETF meeting web page.

   o  A document MUST be provided to attendees detailing on-site network
      configuration information, including wireless configuration
      details, services available (e.g. printing), instructions on how
      to report network issues (e.g. trouble ticket system interface
      instructions), etc.  Initial versions of this information SHOULD
      be provided in advance of the meeting.

   o  The network provider MUST NOT view the IETF network as an
      experimental facility at the risk of impacting the IETF attendee
      experience.  (Do not experiment with his/her favorite pet
      technology.)

   o  The network provider SHOULD have attended at least one prior IETF
      to observe the IETF network deployment and operation.

   o  The network provider SHOULD supply the IETF network design to an
      IETF technical review team for comments.

10.  Security Considerations

   While security is clearly important to the design and delivery of the
   IETF meeting network.  Draft -00 represents the information captured
   on the original 2009 version.  Security requirements (and
   considerations) will be more clearly addressed in subsequent versions
   of this draft.





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11.  IANA Considerations

   There are no IANA considerations for this document.

12.  Acknowledgements

   These requirements represent past and current NOC teams including
   hosts, volunteers, and network staff.  All errors and misstatements
   are the responsibility of the current author.

   Contributors to this draft include Warren Kumari, Clemens Schrimpe,
   and Alessandro Amirante.

   Contributors noted in the original 2009 version of this document are
   (in no particular order): Jim Martin, Karen O'Donoghue, Chris
   Elliott, Joel Jaeggli, Lucy Lynch, Bill Jensen, Chris Liljenstoipe,
   Bill Fenner, Hans Kuhn.

13.  Revision comments

   Draft -01 incorporated initial comments received from the NOC Team.
   These were not fully discussed in advance of publication because of
   the looming deadline.

   Draft -00 was literally an import of the text developed in 2009 and
   put on a website. https://www.ietf.org/how/meetings/admin/meeting-
   network-requirements/. This was to ensure transparency by allowing
   the changes to be viewable in datatracker.

14.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

Author's Address

   Karen O'Donoghue
   IETF NOC Team

   Email: kodonog@pobox.com











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