dc310559.pdf

DEFENSE INFORMATION SYSTEMS AGENCY

P.O. BOX 4502

ARLINGTON, VIRGINIA 22204-4502

DISA CIRCULAR 310-55-9* 5 November 1999

OPERATIONS

Base Level Support for the Defense Information System Network (DISN)

1. Purpose. This Circular delineates the Service and Agency (S/A) responsibilities for base level support of the Defense Information System Network (DISN) on their respective bases, posts, camps, and stations. The Circular outlines general node site administrative requirements and procedures and describes general node site features, while the supplements offer the opportunity for Program Managers (PMs) to provide information which is specific to their equipment and the way business is conducted between their program management offices, the supporting Regional Network Operations and Security Centers (RNOSCs), and the supporting Services/Agencies.

2. Applicability. This Circular applies to the Defense Information Systems Agency (DISA), the military departments, DOD agencies, and civilian activities responsible for the operation and maintenance of elements of the Defense Information Infrastructure (DII) and related communications activities.

3. Authority. This Circular is published in accordance with the authority contained in DOD Directive 5105.19, Defense Information Systems Agency (DISA), 25 June 1991.

4. References.

4.1 DISAC 310-70-1, DII Technical Control, 25 June 1998.

4.2 DISAC 310-130-1, Submission of Telecommunications Service Requests, 23 July 1992.

4.3 DISAC 300-85-1, Reporting of DCS Facility and Link Data, 6 April 1993.

5. Glossary of Terms. A glossary of terms follows the table of contents.

6. Scope. This Circular applies only to Internet Protocol Router (IPR), Integrated Digital Network Exchange (IDNX), and Asynchronous Transfer Mode (ATM) networks. Supplements have been included for specific equipment suites. When deviation occurs in equipment, logistics, or management of some nodes, the supplement for the specified equipment will take precedence over the basic publication.

7. Responsibilities. DISA has responsibility for planning, programming, implementing, and operating long-haul DISN service which is provided to Service Delivery Points. Services and Agencies have responsibility for planning, programming, budgeting, and funding local DISN service and support within their base/post/camp/station area of responsibility and for designating Node Site Coordinators.

FOR THE DIRECTOR:

PAUL T. HAUSER

Captain, USN Chief of Staff

Change list:

Change 1: 12 October 2000

1) Supplement 1, paragraph S1.2.10.7 DISN Regional Network Management Operations Center address is updated.

2) Supplement 2, paragraph S2.3.3.2.2 DISN Regional Network Management Operations Center address is added.

Change 2: 9 February 2001

1) Supplement 1, paragraph S1.2.10.1.1 For NIPRNET E-mail address is updated.

Change 3: 8 January 2002

1) Supplement 3, paragraph S3.3 New point of contact info and phone numbers are updated.

2) Chapter 4, paragraph C3.4 Point of contact is updated.

OPR: OP33

DISTRIBUTION: W

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DISAC 310-55-9 Basic DISA Publication Listing DISA Home Page cio-pubs.disa.mil - Last change: 8 January 2002 https://edge.disa.mil/ca/pubs http://www.disa.mil/

CONTENTS

BASIC CIRCULAR

1. Purpose

2. Applicability

3. Authority

4. References

5. Glossary of Terms

6. Scope

7. Responsibilities

C1. CHAPTER 1. OVERVIEW OF THE DEFENSE INFORMATION SYSTEM

NETWORK

C1.1 General C1.2 DISN Access

C2. CHAPTER 2. NODE SITE COORDINATOR DUTIES

C2.1 General C2.2 Local Onsite Technical Assistance C2.3 General Administrative Duties C2.4 Node Site Survey Assistance C2.5 Node and Circuit Installation Assistance C2.6 Preventive Maintenance Checks C2.7 Electronic Mail Capability C2.8 Node Relocations C2.9 Equipment Monitoring C2.10 Logistical Support

C3. CHAPTER 3. END-ITEM ACCOUNTABILITY

C3.1 General C3.2 Equipment Transfers C3.3 DISN Database C3.4 Defense Information Infrastructure (DII) Reporting

C4. CHAPTER 4. NODE SITE COORDINATOR TRAINING

C4.1 General C4.2 Training Program C4.3 Training Related Expenses C4.4 Training Point of Contact

ILLUSTRATIONS

Figures F3.1 DD Form 1149: Requisition and Invoice/Shipping Document S1.F1 Typical IPR Configuration S1.F2 Sample NIPRnet Network Configuration S1.F3 SIPRNET Configuration S1.F4 NIPRNET Configuration S1.F5 4 Rack ITSDN Suite After Upgrade S1.F6 Cisco 7000 - Front View S1.F7 Cisco 7000 - Rear View S1.F8 Cisco 2511 Communications Server Front and Back S3.F1 U-ATM Rack S3.F2 S-ATM One Rack S3.F3 S-ATM Two Rack S3.F4 Additional Equipment

Tables T2.1 Quarterly Preventive Maintenance Checks S1.T1 IPR Node Suite Equipment Specifications S1.T2 KG-84A Strapping Configurations S1.T3 Protected Switch Settings

SUPPLEMENTS

S1. SUPPLEMENT 1. INTERNET PROTOCOL ROUTER NODE SUITE

S2. SUPPLEMENT 2. INTEGRATED DIGITAL NETWORK EXCHANGE

S3. SUPPLEMENT 3. ASYNCHRONOUS TRANSFER MODE (ATM) NODES

GLOSSARY OF TERMS

CHAPTER 1. OVERVIEW OF DISN

Basic Circular 3DISA Publication Listing cio-pubs@disa.mil – Last revision: 5 October 1999

GLOSSARY OF TERMS

A/O authorized outage ADNX Automated Digital Network Exchange AEC ancillary equipment cabinet ASC Autodin Switching Center ATM asynchronous transfer mode

BGP Border Gateway Protocol BGP3 Border Gateway Protocol Version 3 bps bits per second

CCO Communications Control Office CMO Communications Management Office CONUS Continental United States CPPP Compressed Point-to-Point Protocol CPU central processing unit CS communications server CSU Channel Service Unit CxBus Cisco Extended Bus

DCE Data Communication Equipment DII Defense Information Infrastructure DISA Defense Information Systems Agency DISN Defense Information System Network DLSw Data Line Switching DOD Department of Defense DRAM dynamic random access memory DSU data service unit DTE data terminal equipment

E&I engineering and installation EIA Electronic Industries Association EIP Engineering Installation Plan EIP Ethernet Interface Processor e-mail electronic mail EPROM erasable programable read-only memory

FDDI Fiber Distributed Data Interface FDX Full-Duplex FR Frame Relay FTP File Transfer Protocol

GNOSC Global Network Operations and Security Center GPS Global Positioning System

HSSIP High-Speed Serial Interface Processor Hz Hertz

IAW in accordance with IDF intermediate distribution frame IDNX Integrated Digital Network Exchange IIP initial installation plan I/O input/output IOS Internetwork Operating System IP Internet Protocol IPR Internet Protocol Router IST interswitch trunk ITSDN Integrated Tactical/Strategic Data Network

JILSP Joint Integrated Logistics Support Plan kbps kilobits per second (see bps)

LAN local area network LCC local control center LN link node LRU line replaceable unit LSR local service request

MAU media attachment unit Mbps megabits per second MCI Multiport Communications Interface MDF main distribution frame

NET Network Equipment Technologies, Inc NIC Network Information Center NIPRNET Nonclassified IP Router Network NMS Network Monitoring System NSC Node Site Coordinator

O&M operations and maintenance

PAO Property Accountable Officer PLA plain language address POC point of contact PPP Point-to-Point Protocol PR premise router

RAM random access memory RJ radio jack RNOSC Regional Network Operations and Security Center

RP Route Processor ROM read-only memory

S/A Service and Agency SCL Site Concurrence Letter SIMM Single In-Line Memory Module SIPRNET Secret IP Router Network SLIP Serial Line Interface Protocol SMDS Switched Multimegabit Data Services SNMP Simple Network Management Protocol SME Synchronous Modem Eliminator SP Switch Processor SPAN Spanning Tree Protocol SR Source Routing Protocol

TCP Transmission Control Protocol TRIP Token Ring Interface Processor TSIP Telecommunications System Installation Plan TSO Telecommunications Service Order TSP Telecommunications Service Priority TSR Telecommunications Service Request

UPS United Parcel Service

WAN wide area network

VF voice frequency

CHAPTER 1 OVERVIEW OF DISN

Table of Contents 4DISA Publication Listing

C1. CHAPTER 1. OVERVIEW OF THE DEFENSE INFORMATION SYSTEM

NETWORK

C1.1 General. The Defense Information System Network (DISN), a subelement of the Defense Information Infrastructure (DII), is the DOD consolidated worldwide enterprise level telecommunications infrastructure that provides the end-to-end information transfer network for supporting military operations. It is transparent to the users, facilitates the management of information resources, and is responsive to the national security and defense needs under all conditions in the most efficient manner.

C1.1.1 The DISN is comprised of several networks that are being engineered with standard hardware and software configurations.

C1.1.2 The DISN primarily employs internet protocol router (IPR) technology and Asynchronous Transfer Mode (ATM) technology. The DISN consists of multiplexers, routers, and ATM switches.

C1.1.3 Network control and quality assurance are provided by specially configured host computers with Network Monitoring System (NMS) software and trained controllers at the Regional Network Operations and Security Centers (RNOSCs). The RNOSCs are available for assistance 24 hours-per-day, 7 days-a-week.

C1.2 DISN Access.

C1.2.1 A variety of methods to access the network are provided. Hosts may be directly connected to a hub router or an ATM switch; however, most Services and Agencies (S/As) will have a premise router (PR) attached to a hub router. Subscriber hosts may then be directly connected at the PR or attached through the S/As local area network (LAN). Terminals may also be connected to the network through a communications server (CS) via direct connect or dial-up. The dial-up connections can be reached using a standard phone line and modem.

C1.2.2 Currently, DISN networks carry millions of datagrams and cells each day through networks which employ multiple nodes and link thousands of host computers and users worldwide.

CHAPTER 2. NODE SITE COORDINATOR DUTIES

Table of Contents Glossary of Terms 4DISA Publication Listing

C2. CHAPTER 2. NODE SITE COORDINATOR DUTIES

C2.1 General.

C2.1.1 The DISN node site is the physical location of the DISN equipment. Normally, this equipment consists of an Internet Protocol Router (IPR) node, an asynchronus transfer mode (ATM) node, or Integrated Digital Network Exchange (IDNX)/Automated Digital Network Exchange (ADNX) communications cabinets, modems, and, in some cases, a communications server and encryption cabinets. The Node Site Coordinator (NSC) is the designated representative of the sponsoring communications or information systems command or agency. The NSC is authorized by the Command or Agency to:

C2.1.1.1 Coordinate, at the node site, the physical site preparation and the installation and activation of node, Interswitch Trunks (ISTs), and access circuit equipment. The NSC will arrange for the installation of cables between the DISN node and the local user's equipment. (This coordination includes interactions with the Regional Network Operations and Security Centers (RNOSCs), local telephone personnel, and Services and Agencies (S/A) operation and maintenance (O&M) or engineering and installation (E&I) activities. Contractor personnel install and configure the DISN node equipment.)

C2.1.1.2 Ensure 24-hour, 7 days-per-week continuous operation of the node by providing or making provisions for local site assistance in case of node or circuit degradation or outages.

C2.1.1.3 Accomplish the administrative duties described in paragraph C2.3.

C2.1.2 The NSC will have a designated alternate NSC and may delegate some tasks to the alternate; however, the NSC is responsible for all network node site matters. The NSC will preferably be a government employee within the local area or a member of the sponsoring communications information systems O&M command or agency subunit having responsibility for the facility in which the node is located.

C2.1.2.1 Individuals selected as NSCs will be notified in writing (normally by the unit commander or operations supervisor) and acknowledge that they are responsible for the duties contained in this Circular.

C2.1.2.2 The NSC will inform the appropriate RNOSC of all changes to NSC and alternate NSC assignment; i.e., name, address, telephone number, e-mail address, Plain Language Address (PLA), etc., in order to keep a current database of all DISN NSCs. This may be accomplished by letter or electronic mail to the appropriate address (IP Routers, IDNX, ATM).

C2.1.3 The NSC will be aware of the location of all DISA equipment (building number and floor and room location) in their area of responsibility.

C2.2 Local Onsite Technical Assistance. The NSC will personally provide or arrange for provision of local onsite assistance to the RNOSC on a 24 hours-per-day, 7 days-per-week basis. If the node site is located in a facility that is not manned on a 24 hours-per-day, 7 days-per-week basis, the NSC will ensure that local onsite assistance is provided within 2 hours of receiving a request from the RNOSC. The NSC will notify the RNOSC whenever a site cannot be entered outside of normal duty hours or whenever the 2-hour limit will be exceeded. These procedures are necessary for the RNOSC to be able to assess the effects of an outage at that node.

Arrangements need to be made with the NSC's command for overtime or compensatory time, as required, to fulfill the duties in this Circular.

C2.2.1 The NSC and alternate NSC will provide operational assistance under the telephonic instruction of RNOSC controllers. Unless directed by DISA, local site personnel will not attempt to interfere with, tamper with, or perform hands-on maintenance, other than external cleaning, on any of the DISN node site equipment. Site personnel are responsible for all circuits within their facility up to the designated demarcation point and will provide troubleshooting assistance at the direction of the RNOSC.

C2.2.2 The NSC will coordinate and monitor scheduled and unscheduled corrective maintenance and will allow for scheduled preventive maintenance as directed by the RNOSC. The NSC will perform scheduled preventive maintenance checks of the DISN equipment and the associated node site records, as outlined in paragraph C2.6, and report deficiencies to the appropriate RNOSC. The NSC will also coordinate authorized outages (A/Os) with their respective users, RNOSC, Global Network Operations and Security Center (GNOSC), and the network manager.

C2.2.3 The NSC will ensure that local network element monitoring procedures, as required by DISAC 310-70-1, DII Technical Control (reference 4.1), are accomplished upon receipt of the specific direction.

C2.3 General Administrative Duties. The NSC is responsible for general administration of the node site as presented in the following subparagraphs:

C2.3.1 Hardware Accountability.

C2.3.1.1 The NSC provides for care and safekeeping of all installed node equipment and equipment shipped to the node site for future installation. The DISN Joint Integrated Logistics Support Plan (JILSP) will be consulted for specific equipment accountability procedures. Typically, node site equipment will be shipped to the node site prior to the installation. The installing team will arrange for transfer of the equipment and will assist the NSC with arranging for transfer of custodial responsibility in accordance with S/A procedures. The node site equipment remains DISA property although it may be entered in the property book or equipment records of the site for custodial purposes.

C2.3.1.2 The NSC may be requested to provide temporary storage of some node circuit activation or modification parts, assemblies, and materials. These items are normally expected to be relatively small; e.g., cable assemblies, modems, etc. This material will typically need to be retained for only a few days.

C2.3.2 Site Access Control and Security.

C2.3.2.1 The NSC regulates access to the node site. The network manager will provide the NSC with an initial roster of DISA personnel who are authorized access to node site equipment. Additions to this roster may be made by the DISA Network Manager, DISN Networks Branch, or the RNOSC. The NSC will add names to this roster, as required, inform the RNOSC of such changes, and maintain a copy of the current access roster to the site's DISN equipment.

C2.3.2.2 The NSC will ensure that installed node site equipment is not altered, tampered with, or moved without proper authorization from and coordination with the DISA Operations Directorate (D3).

C2.3.2.3 The NSC shall implement site physical security procedures as specified in applicable DOD and Service directives. These directives are incorporated into the DISN Security Architecture. The Initial Installation Plan (IIP) for each site will reflect the specific security requirements for a given site.

C2.3.3 Carrier and Cable Access for Tail Circuits. The NSC shall assist circuit implementation coordinators, S/A E&I activities, and commercial telephone company installation or maintenance personnel by coordinating the assignment of cable pairs or channels on local carrier systems, as requested. Any required local service requests (LSRs) will be the administrative responsibility of the NSC. NSC responsibility for end customer tail circuits varies dependent upon which of the types of circuit is required. (These circuits may be single circuits or they may be combined electrically (bundled) with other circuits.)

C2.3.3.1 Local Tail Circuit. The end customer is on the base and requires dry (i.e. no voltage applied) cable pairs or other clear channel media between the DISN node site and the customer's location. The user is responsible for any coordination required to provide the cables to their site.

C2.3.3.2 Commercial Tail Circuit. The end customer may or may not be located on the base. A leased tail is required between the DISN node and the customer's location; the NSC is responsible for ensuring that commercial telephone company installers are provided access to the node site.

C2.3.4 General Administration and Coordination.

C2.3.4.1 The NSC will maintain documentation issued by DISA and the RNOSC, e.g., DISA Circulars, Management Bulletins, etc.

(Documentation will be provided by DISA D3.)

C2.3.4.2 The NSC is the focal point for node site operations.

The NSC will maintain close contact with all network entity points-of-contact (i.e., users, RNOSC, local telephone service personnel, etc.) and will maintain a list of telephone numbers to support both liaison and local site assistance functions.

This list will include as a minimum, the RNOSCs, the point of contact (POC) for each connected host at that site, and other telephone numbers such as those of the servicing telephone company, the local technical control, the local communications

O&M unit representative, and contract personnel who are responsible for equipment maintenance, etc.

C2.3.4.3 The NSC is normally designated as the node site POC on all Telecommunications Service Requests (TSRs) and Telecommunications Service Orders (TSOs) for access circuits and interswitch trunks (ISTs) terminating at the node site. The Local Control Center (LCC) (formerly known as Technical Control Facility) is assigned Communications Control Office (CCO) responsibilities for access circuits and ISTs terminating at the node site. In the event there is no servicing LCC, the Communications Management Office (CMO) duties may be assigned to a RNOSC, GNOSC, or NSC associated with the circuit. The appointed CMO will maintain a file of correspondence for these circuits in this circumstance.

C2.3.4.4 The NSC shall retain up-to-date node configuration documentation. This documentation will normally consist of a Telecommunications System Installation Plan (TSIP) or Engineering Installation Plan (EIP), the Site Concurrence Letter (SCL), the original Telecommunications Service Request (TSR), and Telecommunications Service Order (TSO) and will be delivered to the NSC during node activation. The NSC will also retain all documentation relating to changes in the node configuration.

Change documentation will normally consist of new TSRs, TSOs, and engineering plans. The NSC will coordinate all changes with the RNOSC to help ensure that master node configuration records match those at the site.

C2.4 Node Site Survey Assistance. DISN node site surveys are conducted by one or more offices within DISA. These surveys require some support on the part of the host base. This support may represent the first contact on the part of the NSC with the various parties involved with set-up, test, and operations of the DISN node.

C2.4.1 DISA requires the S/A designate a POC for the site survey. This POC may be the NSC or alternate NSC.

C2.4.2 Prior to the site survey, the NSC will arrange for conference room space to be used by the survey team. The NSC will also ensure that POCs from all local organizations affected by the installation and operation requirements for the node site attend the site survey. At a minimum, this includes the node site hosting organization and local telecommunications personnel.

C2.4.3 The NSC will coordinate local assistance, as required, to successfully complete the site survey. This may include support to complete the SCL. The SCL will be signed by the NSC and the Site Commander.

C2.5 Node and Circuit Installation Assistance.

C2.5.1 To facilitate implementation of DISN nodes, IST circuits, and user access to the DISN, the NSC will coordinate the installation and activation of node equipment, software, and circuitry as requested by DISA. Upon receipt of a TSR/TSO, the NSC will review the TSO to ensure the requirement is correctly identified. If a change is necessary, the NSC will contact the project manager or engineer identified in the TSO. If a change is necessary, the NSC will advise the CCO/CMO to inform the appropriate TSO-issuing authority. Corrections to the TSR or TSO will be made as far in advance as possible of the circuit installation. If requested by DISA, the NSC will also verify that the equipment received or on hand is sufficient for the implementation. The NSC will inform the CCO/CMO if any delays are encountered which would result in a scheduling slip.

C2.5.2 The NSC monitors the work of government personnel, O&M commands, DISN contractors, and other commercial vendors supporting the DISN node site. The NSC will notify the RNOSC via telephone, electronic mail, or front-channel message whenever government personnel or contractor work performance problems are observed or when the NSC suggests improvements to the DISN node site. As part of this duty, the NSC permanently maintains a log of all delivery, installation, and maintenance activities at the node site. Equipment items, e.g. cables, received for installation will be opened and inspected after the arrival of the installation team. The following minimum tasks will be completed by DISN installation contractors prior to acceptance of the completed work:

C2.5.2.1 Node and auxiliary equipment installed in accordance with (IAW) the TSIP or EIP.

C2.5.2.2 All circuits and end equipment installed IAW the TSR and TSO by the service date specified in the TSO. Assistance may be requested from the government E&I team, if necessary.

Any difficulties will be referred to the RNOSC or network manager, as appropriate.

C2.5.2.3 All equipment is operational as determined by testing with the RNOSC.

C2.5.2.4 All equipment is bar-coded.

C2.5.2.5 All equipment (racks, drawers, patch panels, cables, modems, etc.) is properly labeled.

C2.5.2.6 All technical documentation is on hand, correct, and coordinated with the RNOSC.

C2.5.2.7 Site clean up is accomplished in conjunction with work done at the site. (If installation contractor personnel representing DISA leave the site in need of a clean-up following work at the site, this deficiency will be reported.)

C2.5.3 Upon receipt of a TSR/TSO, the NSC will contact the CCO/CMO and ensure the TSR/TSO is correctly laid out (e.g., routed through Tech Control). If a change is necessary, the NSC will task the CCO/CMO to inform the appropriate TSO-issuing authority. Corrections to the TSR/TSO will be made as far in advance as possible of the circuit installation. The NSC will verify the equipment received or on hand is sufficient for the implementation. The NSC will inform the CCO/CMO if any delays are encountered which would result in a scheduling slip.

C2.5.4. The NSC, in conjunction with commercial vendors or government E&I teams, will assist with:

C2.5.4.1 Identification of space within the cabinets to house circuit equipment.

C2.5.4.2 Circuit installations between the commercial vendor, the base main distribution frame (MDF), the DISN intermediate distribution frame (IDF), and the node.

C2.5.4.3 Identification of appropriate cross-connect points, circuit wiring pairs, and the DISN-installed cabling required to complete an IST or access circuit order.

C2.5.5 When requested by DISA, RNOSC personnel, or supporting installation contractors, the NSC will provide node site status on equipment and circuits still in the process of being implemented.

C2.6 Preventive Maintenance Checks. The NSC will perform a quarterly Preventive Maintenance Check of the DISN node site equipment. These visual checks are designed to alert S/A and DISA personnel of potential problems and will not require the NSC to perform any hands-on maintenance. All deficiencies will be recorded and forwarded to the appropriate RNOSC for that equipment. (Table T2.1 contains the checklist of items that will be inspected/verified quarterly.)

C2.7 Electronic Mail Capability. The NSC will obtain electronic mail capability through the supporting service component to effectively perform the functions required.

(Electronic mail is used widely to disseminate information to NSCs about ongoing activities, procedural changes, POC changes, etc.)

C2.8 Node Relocations. Periodically there is a requirement to relocate communications and automated data processing equipment to accommodate changes and expansions at the local level. Due to the increasing reliance by operational systems on the DISN, any relocation of DISN resources requires the NSC to comply with one or more of the following items.

C2.8.1 Provide advance notice of a proposed DISN relocation to allow sufficient lead time for DISA to plan, schedule, survey, and accomplish the relocation. Notice will be provided by the local command or agency via formal message to DISA D3 with information copy to the GNOSC and all intermediate service telecommunications, engineering, and installation commands. The message will contain, at a minimum, the following information:

C2.8.1.1 Network, node name, and node number.

C2.8.1.2 Node Site Coordinator. (Name, telephone number, and electronic mail address.)

C2.8.1.3 Current node physical location. (Building, room, address.)

C2.8.1.4 Proposed node physical location. (Building, room, address.)

C2.8.1.5 Date that relocation will be completed.

C2.8.1.6 Reason relocation is required. (Include impact if not accomplished and any other information relevant to the relocation.)

C2.8.1.7 Telecommunications service actions. (Explain, in detail, all circuit actions required.)

C2.8.1.8 Proposed schedule for cutover at the new site.

C2.8.2 An "expedited" process may be required under emergency circumstances. This short lead time relocation request for the deinstallation and storage of the DISN node equipment until reinstallation may be accomplished by formal correspondance.

The message or letter will be based on the complexity of the proposed relocation and required TSR and TSO lead times, as established in DISAC 310-130-1, Submission of Telecommunications Service Requests (reference 4.2). For example, a shorter lead time may be possible if all actions (except the actual deinstallation and reinstallation of the DISN-provided node equipment) can be accomplished by the local command or agency and TSRs are required only for record purposes.

C2.8.3 At no time is the site authorized to power down or move DISN equipment without DISA approval. A site survey will be performed and relocations accomplished with DISA, the S/A, and local command participation. The NSC must coordinate with the RNOSC to minimize the impact of the system disruption.

C2.9 Equipment Monitoring. NSC personnel will be able, after training or help from the government O&M team and with assistance from the RNOSC, to recognize what is considered to be normal operating conditions for the DISN node equipment. The NSC will report any abnormal conditions to the RNOSC.

C2.10 Logistical Support. DISA is responsible for all aspects of node site equipment logistical support. Details of this support are covered in the DISN JILSP, as well as specific equipment JILSPs. Each JILSP shows how maintenance and supply activities are coordinated between the base activities and other interested parties, such as DISA, the RNOSCs, and contractors.

As mentioned previously, DISN is a merger of a number of S/A networks. Logistical support will vary somewhat to account for differences in S/A procedures.

C2.10.1 Technical Assistance. Technical assistance may be required at a DISN node. The JILSP outlines the procedures which will be followed to initiate a request for technical assistance. The procedures may vary depending on the contractual arrangements in effect at a particular node location. The NSC will coordinate any requests for node technical assistance through the appropriate RNOSC.

C2.10.2 Defective Equipment. Defective parts will be returned within 5 days of the receipt of a new or replacement part. The NSC may be tasked with this duty or may be responsible for ensuring that visiting maintenance personnel effect the return.

The replacement part comes with explicit instructions for return of the defective item. The same shipping container used for the replacement part will be used to return the defective one.

Failure to return the old part will result in the site incurring the total contract cost of the part. The RNOSC will be contacted if there is any difficulty in complying with this defective parts return policy. (Where specific supplements to this Circular contradict these procedures, follow the maintenance procedures outlined in the supplement.)

C2.10.3 Spares. Spare equipment is normally kept and maintained by contractor personnel; however, some nodes which are centrally located, may be used for strategic spares storage. In such cases, these parts will be labeled SPARE and added to the site's inventory. A spare part may be removed from one of the central sites during maintenance of a second node. The NSC will document the removal, notify the RNOSC, and document the arrival of a replacement spare. It will be the duty of the NSC at the second node, where the spare is used, to return (or to ensure the return of) the defective part IAW the return instructions.

(Note: Spares are not to be used to provision new or expanded service.)

C2.10.4 Equipment Accountability. DISA installs and manages DISN node equipment; the individual sites are accountable for the property located at their sites. The NSC will ensure that the DISN node equipment is properly signed for and added to the installation's property book as required by local regulations.

(Refer to chapter C3 for more detailed information.)

CHAPTER 3. END-ITEM ACCOUNTABILITY

Table of Contents Glossary of Terms 6DISA Publication Listing

TABLE T2.1 QUARTERLY PREVENTIVE MAINTENANCE CHECKS

# Item Yes No

DISN cabinets are wired to individual circuit breakers and properly labeled in accordance with the Site Concurrence Letter.

2 DISN racks are grounded to the facility station ground.

Cabinet cabling and wiring is completed in a proper and acceptable manner. Cables will be neat and properly secured with fasteners, such as tie wraps, to allow easy access to equipment. Cables will be properly run through cable conduit, troughs, and/or ladders.

4 The area surrounding the equipment racks is free of obstructions to air outlets and intakes.

There are at least 3 feet of space in front and behind equipment racks as required for DISN equipment.

6 Classified systems are in a controlled access secure area.

7 Circuit data cards depicting signal flow throughout the facility are readily available.

Contractor personnel who been granted access to the facility: (1) have their presence annotated in the visitor's log and (2) have their movements within the facility monitored and controlled.

Where spares are authorized, there is an adequate supply on hand and replacement circuit cards are kept in antistatic bags during receipt, storage, and/or subsequent transport.

10 A completed and signed copy of the site concurrence letter is available.

History folders are kept with the current Telecommunications Service Order (TSO), completion reports, and circuit diagrams in accordance with DISAC 310-70-1, DII Technical Control.

12 Circuit appearances (i.e. patch panels, cables, equipment) are labeled for easy identification.

Top of Table T2.1 Chapter 2 Basic Circular Table of Contents Glossary of Terms 7DISA Publication Listing

C3. CHAPTER 3. END-ITEM ACCOUNTABILITY

C3.1 General. End-item accountability and its relation to the DISN node site is addressed in this chapter. Areas of discussion include: equipment transfer procedures used by DISA for the DISN, DISN database, and reporting of DISN facility and link data.

C3.2 Equipment Transfers. DISN end items entering or leaving the DISN node site will be accounted for on a DD Form 1149:

Requisition and Invoice/Shipping Document. (See sample in Figure F3.1.)

C3.2.1 End-item Installation. Equipment will be sent to a node site via Federal Express, United Parcel Service (UPS), registered mail, or it may be hand-carried. Regardless of the shipping method, a DD Form 1149 should be included, along with instructions for its completion, and a self-addressed, stamped envelope. The DISN Property Accountable Officer (PAO) (usually the Node Site Coordinator [NSC] or authorized representative) will complete the DD Form 1149 and return the original to the DISA installation contractor within 14 days of transfer.

Signature of the PAO or NSC will acknowledge receipt of the end item(s) and obligate the site PAO or NSC to ensure the equipment is protected against damage or loss and is accounted for at all times.

C3.2.2 End-item Deinstallation. End items which are deinstalled at the node site will be accounted for on a DD Form 1149. The deinstaller will sign the DD Form 1149 and give one copy to the PAO/NSC. The remaining copies will be retained by the deinstaller for delivery to DISA. Deinstalled end items shall be removed from the node site within 7 working days from the date of the deinstallation. If this removal does not occur, the NSC will contact the area DISA DISN Installation Management Office to report the deficiency.

C3.2.3 Maintenance Actions. Some maintenance actions may require equipment transfer; i.e., installation or deinstallation. These actions are handled as explained in subparagraphs C3.2.1 and C3.2.2 (above).

C3.2.4 Equipment Modification. Modifications that involve installations or deinstallations will follow the transfer procedures for installation or deinstallation.

C3.2.5 Unauthorized DISN Items. End items that are on station and are not in use or scheduled for installation (except for authorized spares IAW C2.10.3) should be considered unauthorized. The appropriate RNOSC should be contacted for disposition instructions. Unauthorized DISN items will normally be returned to DISA using a DD Form 1149.

C3.2.6 Report of Survey. When a site receives equipment but later cannot locate the equipment, the site must initiate investigative actions to identify the circumstances or liability associated with the missing parts. Also, when Federal Express, UPS, or registered mail tracking data indicates a package was signed for by site personnel, the receiving unit must initiate a Report of Survey.

C3.3 DISN Database. The DISN database contains the end-item information for each equipment site in the DISN. This includes monitoring centers and test beds, in addition to node sites.

C3.3.1 DISA uses bar codes to track DISN end-items. These codes uniquely identify an end-item and provide for entry into the DISN database. Bar codes do not, of themselves, give any information about the end-item, but when the alphanumeric bar code is entered into the DISN data base, stored data which relates to the end-item is made available.

C3.3.2 DISA uses the bar code system described in MIL-STD- 1189B. The bar code labels meet the standards in MIL-STD-1189B;

however, the way the alphanumeric code is used is different.

C3.4 Defense Information Infrastructure (DII) Reporting.

Information concerning all operational DOD owned or leased DII transmission media, system traffic switches, and support facilities will be reported to the appropriate monitoring center IAW DISAC 300-85-1, Reporting of DCS Facility and Link Data (reference 4.3). Within the DISN, the internet protocol routers (IPRs), IDNX/ADNX, ATM switches, and Regional Network Operations and Security Centers (RNOSCs), are identified as DII facilities. As DISN assets become operational, they are added to existing facility and link reports. For example, if an IPR is sponsored by a unit which also operates and maintains another DII transmission system, switch, or facility (such as an AUTODIN Switching Center [ASC]), the IPR would be added to the existing report. If the DISN asset is the first DII asset to be sponsored by the unit, DISA will coordinate with the gaining unit to initiate facility and link data reporting. In most cases, the NSC will not be the unit's designated equipment accountant, but as a minimum, the NSC will be prepared to provide the latest DISN inventory for the site or be able to verify and update all DISN assets on the station's Facility and Link Data Report. It is mandatory that a report be submitted on each node site at least every 180 days. (NSCs should refer to DISAC 300-85-1, Reporting of DCS Facility and Link Data [reference 4.3], for exact procedures.)

CHAPTER 4. NODE SITE COORDINATOR TRAINING

Table of Contents Glossary of Terms 8DISA Publication Listing

Top of Figure F3.1 Chapter 3 Basic Circular Table of Contents Glossary of Terms 9DISA Publication Listing

C4. CHAPTER 4. NODE SITE COORDINATOR TRAINING

C4.1 General. To perform the duties outlined in chapter 2, the NSC may require training. The NSC and alternate NSC will not be the sole personnel responsible for DISN node site equipment.

Each node will normally be serviced and maintained through a global DISN maintenance contract. All maintenance will be coordinated with the responsible RNOSC. In many cases, the RNOSC operators can coordinate efforts with other network support personnel to correct problems with minimal onsite assistance.

C4.2 Training Program. General network training is provided to assist the NSC in understanding the larger network and how the specific node fits into the larger picture. No attempt is made to train the NSC in repairing the node. Maintenance is the specific responsibility of DISA. Training will provide familiarization with equipment used at nodes (routers, ADNX, IDNX, channel service units [CSUs]/data service units [DSUs], and switches).

C4.3 Training Related Expenses. The annual 3-day DISN Data Services training is free; however, the attendee is responsible for travel and per diem.

C4.4 Training Point of Contact. DISA NS52 is the focal point for DISN Data Services training. Follow-on training is normally done by the S/A or through on-the-job-training (OJT).

Additional formal training, at the S/A expense, can be arranged.

Contact DISA NS52, (DSN) 381-2116 or (703) 882-2116, for details.

SUPPLEMENT 1

Table of Contents Glossary of Terms 9DISA Publication Listing cio-pubs@disa.mil – Last revision: 8 January 2002

SUPPLEMENT 1. INTERNET PROTOCOL ROUTER NODE SUITE

S1.1 General. This supplement discusses Internet Protocol Router (IPR) node suite equipment and configurations, IPRs, and communications servers (CSs).

S1.2 IPR Node Suite Equipment Components. The IPR is shown in relationship to other components of the IPR node suite in S1.

Figure F1. The NSC responsibilities pertain to components inside the box labeled "DISN IPR NODE". However, the NSC may be tasked to maintain other equipment shown that is located within the facility.

S1.2.1 DISN IPR Node Components. DISN components include:

S1.2.1.1 Internet Protocol Routers (IPRs).

S1.2.1.2 Communications servers (CSs).

S1.2.1.3 Processor racks.

S1.2.1.4 Encryption racks.

S1.2.1.5 Communications racks.

S1.2.1.6 KG-84A and/or KG-194 encryption devices.

S1.2.1.7 Modems.

S1.2.2 Additional Equipment. A variety of other equipment and parts are used in the DISN to interface different network components. This may include line drivers, Sync/Async adapters, interface converters, Synchronous Modem Eliminators (SMEs), local modems, and null modems.

S1.2.3 IPR Node Equipment Specifications. S1. Table T1 shows the network specifications for equipment installed in the IPR node suites.

S1.2.4 Standard Node Suite Configurations. To ensure uniformity among node sites and eliminate duplication of effort when preparing and installing an IPR node suite, standard configurations were developed. In DISN IPR node suites, equipment racks are used to mount network components. Basic equipment rack configurations have been defined, corresponding to functional requirements of the node. Variations on the basic racks may also exist, depending on site-specific requirements.

A sample DISN NIPRNET network configuration is shown in S1. Figure F2.

S1.2.5 Equipment Rack Contents. The following is a list of the three types of equipment racks and the network components which are installed in the IPR node suites. Refer to S1. Figure F3 for a typical SIPRNET configuration and to S1. Figure F4 for a typical NIPRNET configuration.

S1.2.5.1 Processor Rack. This rack contains the IPR, CS (where applicable), and associated patch panels. Paragraphs S1.3 and S1.4 discuss the IPR and CS equipment in further detail.

S1.2.5.1.1 The most significant equipment item in the processor cabinet is the IPR. Its configuration is determined by the type of router, the number and type of interface processor cards, and its software operating system. An AGS+ can accommodate up to 32 individual interfaces and will be configured with a CSC3 or CSC4 processor.

S1.2.5.1.2 In most instances a Cisco model 7XXX series IPR will be used. (This includes Cisco 7206's, 7000's, 7505's, 7507's, and 7513's.) These models are similar but offer a higher interface speed which enables the router to exploit high-speed serial technology such as fiber optic digital interfaces.

S1.2.5.1.3 Just below the router is a patch panel. This patch panel, usually an ADC product, can accommodate up to 18 sets of DB-25 modules, wired for the RS-530 physical standard. Each set has three individual patch locations. The upper location in a set is labeled "component." It will normally go to a port on the router. The middle location in a set is marked "modem."

The circuit passes through the modem patch appearance and on to the transmission media (modem, channel service unit [CSU]/data service unit [DSU], IDNX, etc.). The common practice is to cable the path such that patch cords are not used except during troubleshooting or to patch around a faulty piece of equipment.

The bottom of the three patch locations in a set is used for monitoring purposes and is appropriately marked "monitor."

S1.2.5.1.4 The converter cages shown in the bottom of this cabinet contain the protocol converters. A number of other different types of equipment can be present.

S1.2.5.2 Encryption Rack. The DISN security architecture requires certain portions of the router networks to be encrypted. For example, secret IPR circuits which leave the confines of a secure facility must be encrypted. Node control gateways may also be encrypted to preclude unauthorized access.

Note also that in some cases encryption gear may not be required. The DISN security requirements may be met without the need to encrypt the signals passing through the IPR node suite.

When this is the case, special cables are used to provide the interconnections within the cabinet.

S1.2.5.2.1 The encryption equipment is placed between the secure and nonsecure portions of the suite. At a DISN SIPRNET IPR node site, the logical flow is from the processor rack, through the encryption device, to the communications cabinet.

The encryption device provides the encryption for communications leaving the node. S1. Table T2 and S1. Table T3 contain the various cryptographic device settings for the KG-84A devices used within the DISN networks. The NSC can use these tables to coordinate with the local site cryptographic support personnel for maintenance of the KG-84As.

S1.2.5.2.2 The DISN security architecture requires certain portions of the router networks to be encrypted. For example, secret IPR circuits which leave the confines of a secure facility must be encrypted. Node control gateways may also be encrypted to preclude unauthorized access. Note also that in some cases encryption gear may not be required. The DISN security requirements may be met without the need to encrypt the signals passing through the IPR node suite. When this is the case, special cables are used to provide the interconnections within the cabinet.

S1.2.5.3 Communications Rack. Signals which are leaving the DISN node, arriving from a distant node or previous system, are processed by equipment in the communications rack. The communications rack assembly acts as an interface between the facility communications lines and the communications equipment.

It provides a single location for mounting modems, multiplexers, and other data communications equipment required at a site. The communications rack is equipped with the following:

S1.2.5.3.1 Larse Model Access-T 1500 DSU/CSU Chassis. The Larse model Access-T 1500 DSU/CSU chassis is usually placed in the top of this rack. It holds up to 15 DSU/CSU modules per chassis. Individual DSU modules plugged into the chassis can be used to terminate circuits with data rates in DS0 increments (n x 56 or 64 Kbps) up to a full T-1.

S1.2.5.3.2 Model MPC-2 Signal Converter. A model MPC-2 (or equivalent) signal converter is installed in the communications rack. Its function is to convert signals from commercial standards such as V.35 or RS-232 to the DISN standard RS-530.

S1.2.5.3.3 Codex Model 35xx DSU/CSU. A Codex model 35XX DSU/CSU cage may be installed. This item is used to house modem modules for low data rate applications. The 35XX series modems are remotely manageable and may be used when the network operations center needs to manage the circuit as well as the node equipment.

S1.2.5.3.4 Voice Frequency (VF) Patch Panel. The VF patch panel supports voice frequency patching. This is not contained in all nodes. There are four VF patch panel modules on two strips in the standard cabinet. Each module includes two 50-pin connectors, one for line connections and one for modem connections. The unit is designed to provide a straight-through connection of all circuits in normal operation. When a patch cord is inserted into this panel, the connection inside the jack is broken, allowing the circuit to be patched to another line.

Placing patch cords into the correct line jack allows any incoming line to be patched to any modem line by placing the patch cord into that modem back. Placing a patch cord into the monitor jack allows monitoring of a circuit without breaking the connection.

S1.2.5.3.5 Radio Jack (RJ)-11C/RJ-45 Breakout Panels. RJ-11C breakout panels (also known as Mod-Tap Panels) are passive mechanical adapters that convert four 50-pin TELCO jacks into four sets of 12 modular telephone jacks (RJ-11Cs) for ready connection to VF modems. There are four RJ-11C breakout panel modules on two strips on the standard cabinet. VF modem vendors are required to supply a cable from their modem's analog side that mates with the RJ-11C jack. The RJ45 Breakout Panels are replacing the RJ-11C, and are capable of up to a CAT-V signal.

There will be two for each node, the first designated for low speed circuits (DDS) and the second for high speed circuits (T1/FT1 and circuits directly connected to the IDNX).

S1.2.5.3.6 Digital Patch Panel. The patch panel allows patching of the digital side of each circuit. Using patch cords, a technician is able to spare circuits or modems.

S1.2.5.3.7 Power Strips. AC power outlet strips that supply power to components are located in the back on either side of the cabinet.

S1.2.5.3.8 Rack Dimensions. IPR node suites have various "footprints" with each rack being 24 inches across the front by 36 inches deep. A clear space of at least 36 inches in front of and behind the cabinets is required for clearance when opening the doors or working. The assembly is 80 inches high. Each cabinet has approximately 72 inches of usable panel height.

Free space shown in the typical node is intended for future expansion or modification of the node.

S1.2.6 DISN Integrated Tactical-Strategic Data Networking (ITSDN) Node. ITSDN nodes are similar to other DISN nodes with two significant differences: each equipment suite accommodates two nodes, one classified (SIPRNET) and the other unclassified (NIPRNET), and ITSDN nodes implement CISCO 7206 routers. S1.

Figure F5 depicts the typical layout. However, NIPRNET and SIPRNET equipment racks will not normally be installed side-by-side as shown here. The ITSDN processor, encryption, and communication racks are similar to those described previously.

S1.2.7 Power. The IPR equipment uses conventional 20 AMP, 120V, 50/60 Hertz (Hz) electrical power. The DISN node suite is part of a large network; therefore, electrical power supplied to the router node equipment should be uninterruptable whenever such power is available. The DISN standard node suite does not include an uninterruptable power supply.