700 West Mineral Littleton, CO 80120

Frame Relay, Frame Relay with Fractional Port Speeds and Customer Network Management Availability UPDATE 9/12/08

Original Disclosure Date:	November 15, 1991
Update to Network Disclosure News #401
Summary:	Qwest offers a Frame Relay interface which allows the establishment of Permanent Virtual Circuits to customer designated locations utilizing 56/64 Kbps and 1.544 Mbps digital access links. PVCs (Permanent Virtual Circuits) are logical circuits that define a specific path for frames to follow between any two devices. Frame Relay enables greater throughput efficiencies for applications such as LAN interconnect. A Frame Relay Network-to-Network Interface (NNI) is available for purchase by an end user for connectivity between Qwest’s Frame Relay network and another Frame Relay network. The NNI protocol specifies the manner in which Frame Relay networks are inter-connected. The NNI protocol supported by Qwest is defined by Frame Relay Forum Document FRF.2.1. Qwest offers Frame Relay with Fractional Port Speeds where available. Fractional Port Speed Access will provide customers the ability to access a Qwest Frame Relay Service port connection at fractional 1.544 Mbps speeds in the following 56/64 Kbps multiples, which are: 112/128 Kbps, 224/256 Kbps, 336/384 Kbps, 448/512 Kbps, and 672/768 Kbps. The physical layer connection to the end-user customer will be a standard 1.544 Mbps interface. To access Qwest Corporation's Frame Relay Service at Fractional Port Speeds, the customer will require a 1.544 Mbps CSU/DSU or CSU/DSU function in the CPE connected to the 1.544 Mbps line that is capable of clocking Nx56 or Nx64 fractional 1.544 Mbps data rates. This capability allows transmission at the chosen port access rates. The CPE will interface with a 1.544 Mbps access link provisioned for fractional port access rates. The physical layer connection to other Frame Relay service providers is a 1.544 Mbps interface. The transmission is connected to the Frame Relay provider of the customer's choice at the specified rate speeds. Multiple transmissions are aggregated on the 1.544 Mbps link for delivery at the other Frame Relay provider's point-of-presence (POP). Customers can purchase common Fractional Port Speed Frame Relay offerings from both Qwest Corporation and other Frame Relay service providers. Customer Network Management (CNM) capabilities are available as an additional feature with Frame Relay and Frame Relay with Fractional Port Speeds. CNM will provide Network Management capabilities to Frame Relay access links and ports that connect customer's LANs. Qwest will provide the end user with the capability to monitor the end user's Frame Relay Network and query data generated by Qwest’s network monitoring equipment. This customer information is transported using the underlying Qwest FRS protocol data units. To use CNM, a customer needs to provide at least one SNMP Version 1 compatible NMS (Network Management Station). The NMS must contain an Internet Protocol address registered with the Internet and utilize Transmission Control Protocol/Internet Protocol (TCP/IP). The customer network management information, which is to be exchanged at the Qwest network interfaces, is contained within specific Management Information Bases (MIBs).
Locations and Timing of Deployment:	Locations where Frame Relay is currently available can be found in the following attachments . If the interfaces change in the future, Qwest will issue a new Network Disclosure. In addition, any new deployment locations will be added to the Qwest web site at http://www.qwest.com/disclosures in disclosure #401. Attachment 1 denotes deployment plans for Frame Relay. Attachment 2 indicates deployment plans for 44.736 Mbit/s high speed frame relay UNI. There are no subtending offices. Access will be through a DS3 transport service and a COCC. The service is for high speed UNI or NNI access to FR network at DS3 transmission speed and is specifically targeted for low speed traffic aggregation (e.g., DS0, 56kbps, T1 and Fractional T1) onto a single high speed UNI or NNI. The service components will include a DS3 port and DS3 local loop. The Fault Tolerant PVC feature is only available in Oregon. It allows a customer to subscribe to a frame relay access link to serve as standby for one or more primary frame relay access links. The video PVC service offering is only available in Oregon. It allows packetized point-to-point videoconferencing applications (both 384kbit/s and 512kbit/s) to be transported over Qwest FRS. Multipoint videoconferencing applications at 384kbit/s are also available. The service also assigns a higher transit priority for the video PVC than the basic PVC to minimize delay and loss during intermittent network congestion. Further information can be found in Qwest Technical Publication #77372, "Qwest Frame Relay Service", Issue H, December 2000.
Pricing:	Rates are available in the FCC1 or State specific Tariffs.
Interface Requirements:	FRAME RELAY AND FRAME RELAY WITH FRACTIONAL PORT SPEED INTERFACE SPECIFICATIONS: Qwest Technical Publication #77375, "1.544 Mbit/s Channel Interfaces Technical Specifications for Network Channel Interface Codes Describing Electrical Interfaces at Customer Premises and at Qwest Corporations, Central Offices". http://www.qwest.com/techpub/ NOTE: Signaling specifications in #77375 supersede the specifications in ANSI reference documents. Frame Relay Service Technical Publication Qwest Technical Publication #77372, "Qwest Frame Relay Service", Issue H, December, 2000. http://www.qwest.com/techpub/ Frame Relay Forum Documents FRF1.2, "User-to-Network Interface (UNI) Implementation Agreement", July 2000 FRF.2.2, "Network-to-Network Interface Implementation Agreement", March, 2002. Frame Relay Local In-channel Signaling Web site to order ANSI documents: http://webstore.ansi.org/ansidocstore/find.asp?- Qwest Frame Relay Service implements PVC Management Procedures to administer PVCs based on the following local in-channel Signaling protocols: ANSI T1.617-1991 Annex D (see page 6 for document title and price) Local Management Interface (LMI) ITU-T Q.933 Annex A The customer or other Frame Relay service provider must invoke one of the above Frame Relay local in-channel signaling protocols on the access link. Technical specifications for LMI and ITU-T Q.933 Annex A are contained in: ITU-T Q.933 "DSS1 Signaling Specification for Frame Mode Basic Call Control, IT, Geneva, 2992, March 1993 LMI, "Frame Relay Specifications with Extensions Based on Proposed T1S1 Standards", Revision 1.0, September 18, 1990, Cisco Systems, Inc., Digital Equipment Corporation, Northern Telecom, Inc., and StrataCom, Inc. 56 and 64 Kbit/s Interface for Frame Relay (Physical Layer) ANSI T1. 410-1992, "Telecommunications Carrier to Customer Metallic Interface Digital Data at 64 Kbit/s and Subrates". Bellcore Technical Reference MDP-326-726 (Publication #62310), "Digital Data Systems Channel Interface Specifications", Issue 1 September 1983. 1.544 Mbit/s Interface for Frame Relay (Physical Layer) ANSI T1.102-1993, "Telecommunications Digital Hierarchy Electrical Interfaces". ANSI T1.403-1995, "Network to Customer Installation DS1 Metallic Interface". Data Link Layer Specifications for Frame Relay Interface ANSI T1.602-1989, "Telecommunications Integrated Services Digital Network (ISDN) - Data Link Layer Signaling Specifications for Application at the User - Network Interface". ANSI T1.606-1990, Telecommunications Integrated Services Digital Network (ISDN) - Architectural Framework and Service Description for Frame Relay Bearer Service". ANSI T1.617-1991, "Telecommunications Integrated Services Digital Network (ISDN) - Signaling Specification for Frame Relay Bearer Service for Digital Subscriber Signaling System #1". ANSI T1.618-1991, "Telecommunications Integrated Services Digital Network (ISDN) - Core Aspects of Frame Protocol for use with Frame Relay Bearer Service". CUSTOMER NETWORK MANAGEMENT The following references contain the interface specifications for achieving interoperability between CNM LAN devices supporting SNMP applications and Qwest’s network interface for Frame Relay Service and Frame Relay with Fractional Port Speeds. Qwest Technical Publication #77376, Issue C, "Customer Network Management", September 2001 Frame Relay Forum Document FRF.6, “Frame Relay Service Customer Network Management Implementation Agreement (MIB)”, March 1994, which is based on RFC 1604 “Definitions of Managed Objects for Frame Relay Service”. Request For Comment Documents:     RFC 768 User Data-grams   RFC 791 Internet Protocol   RFC 1155 Structure and Identification of Management Information for TCP/IP-based Internets.   RFC 1157 Simple Network Management Protocol   RFC 1209 Transmission of IP Data-grams over the Switched Multimegabit Data Service   RFC 1212 Concise MIB Definitions   RFC 1213 Management Information Base for Network Management of TCP/IP based Internets: MIB-II   RFC 2427 Multi-Protocol Interconnect over Frame Relay   RFC 2863 The Interfaces Group MIB Request for Comment (RFC) documents can be accessed via the World Wide Web site at: http://www.rfc-editor.org/rfc.html The exact definition of the information available to customers is contained in the following MIBs supported by Qwest’s CNM. 1. The System Group, Interface Group of MIB-II and FrNetServMIB. 2. Qwest Corporation expects to track all changes and/or additions to MIBs for FRS. 3. No other MIBs are supported. DOCUMENTATION CAN BE OBTAINED AS FOLLOWS: ANSI documentation can be obtained by contacting: American National Standards Institute, Inc. Customer Services 25 West 43rd Street 4th floor New York, NY 10036 or call: 1-212-642-4900, www.ansi.org ITU Publications can be obtained by contacting: Phillips Business Information, Inc. 1201 Seven Locks Road Suite 300 Potomac, MD 20854 or call: 1-800-666-4266, www.itu.int/publications/ Bellcore documentation can be obtained by contacting: Bellcore Customer Relations 8 Corporate Place, PYA 3A-184 Piscataway, NJ 08854-4196 or call: 1-800-521-CORE, www.telecom-info.telcordia.com Qwest technical publications can be obtained by contacting: www.qwest.com/techpub/ The Frame Relay Forum Publication, FRF1.2, FRF.2.2, and FRF.6, can be obtained by contacting: Frame Relay Forum 39355 California Street, Suite #307 Fremont, CA 94538 or call: 1-510-608-5920 Facts-by-Fax service: 1-510-608-5917 www.frforum.com
Additional Information:	Any customer premises equipment vendor/manufacturer or enhanced services provider requiring additional technical information regarding these interfaces provided by Qwest may contact: Jaimie Given Qwest Corporation Local Networks 700 W. Mineral, MN F15.31 Littleton, CO 80120 303-707-7048

Questions regarding Network Disclosure information can be referred to the individual listed on the Disclosure Announcement, or contact Jamal Boudhaouia, CenturyLink's Manager of Network Disclosures at Jamal.Boudhaouia@CenturyLink.com or (303) 707-8561.