Borden, M., and M. Garrett, "Interoperation of Controlled-Load and Guaranteed-Service with ATM", RFC 2381, August 1998.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....a mapping from the IP QoS model (IIS) to the ATM QoS model is necessary. This mapping includes, among other things, the translation of the IIS parameters for each QoS control service onto ATM signalling parameters. A draft proposal for the translation of parameters from IIS to ATM is presented in [2]. In the case of Guaranteed Quality of Service (GS) the draft suggests mappings for DBR and SBR. Since delay guarantees are required for the example application considered, and also for simplicity purposes, this section covers only the DBR case. At the IP layer the same values as those given in ....

....loss ratio (IP plr) as a function of ATM CLR (Cell Loss Ratio) and CER (Cell Error Ratio) given the maximum IP packet size (M, in bytes) for DBR (considering compliant traffic) is given by: IP plr M CLR CER . 16 48 According to the current IP over ATM QoS mapping proposal [2], CLR has to be as low as possible, so that link errors rather than congestion can be source of cell loss. The stringent class objectives for the upper bounds on CLR and CER are 3.10 7 and 4.10 6 , respectively. For M in the range of 100 to 400 bytes, applying the equation above leads to a ....

M Borden, M. Garrett, Interoperation of Controlled-Load and Guaranteed-Service with ATM, Internet Draft (work in progress), <draft-ietf-issll-atm-mapping-02>, March 1997.

....in the presence of IP Integrated Services and RSVP. We consider the classical framework for handling RSVP and Integrated Services over ATM described in [Ber96b, Ber96a] In this model, an RSVP flow is mapped onto an ATM VCC with QoS attributes. The guidelines for this mapping are described in [BG96]. Specifically, for multicast flows, when a source receives a RESV message for a given multicast session, it is responsible for creating a virtual connection with the appropriate quality of service specification to match the service requested in the RESV message. However, when an MCS is used, this ....

M. Borden and M. Garrett. Interoperation of Controlled-Load and Guaranteed-Service with ATM. Internet Draft, draft-borden-intserv-atm-mapping-00.txt, June 1996.

....virtual circuits (SVCs) It provides an overall approach to the problem as well as a specific method for running over today s ATM networks. There are two parts of this problem. This draft provides guidelines for using ATM VCs with QoS as part of an Integrated Services Internet. A related draft[6] describes service mappings between IP Integrated Services and ATM services. Authors Note The postscript version of this document contains figures that are not included in the text version, so it is best to use the postscript version. Figures will be converted to ASCII in a future version. ....

....model, QoS translation and VC management. QoS translation concerns mapping a QoS from the IIS model to a proper ATM QoS, while VC management concentrates on how many VCs are needed and which traffic flows are routed over which VCs. Mapping of IP QoS to ATM QoS is the subject of a companion draft[6]. This draft concentrates on VC management (and we assume in this draft that the QoS for a single reserved flow can be acceptably translated to an ATM QoS) Two types of VCs need to be managed, data VCs which handle the actual data traffic, and control VCs which handle the RSVP signalling Berson, ....

Borden, M., and Garrett, M., "Interoperation of Controlled-Load and Guaranteed-Service with ATM," Internet Draft, June 1996.

....between multiple implementations and conformance to the RSVP and Integrated Services specifications. A separate document [6] provides specific guidelines for running over today s ATM networks. The general problem is discussed in [11] Integrated Services to ATM service mappings are covered in [9]. The full set of documents present the background and information needed to implement Integrated Services and RSVP over ATM. Internet Draft RSVP over ATM Requirements July 1997 Contents 1 Introduction 3 1.1 Terms : ....

Borden, M., and Garrett, M., "Interoperation of Controlled-Load and Guaranteed-Service with ATM," Internet Draft, March 1997.

....IntServ E. Crawley Expires May 1997 Page 2 INTERNET DRAFT Integrated Services over LANE November Controlled Load [7] and Guaranteed Service [8] models. In the example provided in section 3, these parameters would be used for the VCs for priorities 4 and 6. 5. Integrated Services Mapping to ATM [9] describes the mapping of the Controlled Load and Guaranteed Service models to IETF IP over ATM networks. This provides a set of call setup parameters that can be used for supporting the IntServ Controlled Load and Guaranteed Service models. These call setup parameters can be applied to the VCs ....

....that can be used for supporting the IntServ Controlled Load and Guaranteed Service models. These call setup parameters can be applied to the VCs that are set up by the LECs. This allows the LEC to provide very specific support for IntServ flows as IEEE 802.1p priorities on emulated LANs. [9] allows for multiple mappings from IntServ to ATM based on the IntServ model and the ATM service categories available. For example, Guaranteed Service can be mapped to both Constant Bit Rate (CBR) and real time Variable Bit Rate (rtVBR) service classes with appropriate call setup parameters for ....

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M. Borden, M. Garrett. Interoperation of Controlled-Load and Guaranteed Service with ATM, Internet Draft, draft-ietf-issll-atmmapping -00.txt, September, 1996.

.... (Pacific Rim) Abstract This note presents specific implementation guidelines for running RSVP over ATM switched virtual circuits (SVCs) The general problem is discussed in [8] Implementation requirements are discussed in [3] Integrated Services to ATM service mappings are covered in [6]. The full set of documents present the background and information needed to implement Integrated Services and RSVP over ATM. Internet Draft RSVP over ATM Guidelines July 1997 1 Introduction This note discusses running IP over ATM in an environment where SVCs are used to support QoS flows and ....

Borden, M., and Garrett, M., "Interoperation of Controlled-Load and Guaranteed-Service with ATM," Internet Draft, March 1997.

.... types best effort (BE) controlled load service (CLS) and guaranteed service (GS) onto the ATM service model (supporting constant bit rate (CBR) variable bit rate (VBR) available bit rate (ABR) unspecified bit rate (UBR) asynchronous block transfer (ABT) and potential additional services; see [15, 22]) While CBR and VBR service classes are well suited for audio visual applications, proposed tariffs give a high incentive to use ABR and UBR service classes instead. One example is the proposed set of ATM tariffs for VBR, CBR, ABR, and UBR by Walker et al. 64] where the price per volume for VBR ....

M. Garrett and M. Borden, "Interoperation of Controlled-Load and Guaranteed Services with ATM", Internet-Draft: draft-ietf-issll-atm-mapping (Work in Progress), Internet Engineering Task Force, July 1997.

....[2] We call this solution Multicast Integration Server (MIS) In particular, this memo focuses on the definition of how a layer 3 setup protocol like RSVP can be mapped on a layer 2 protocol as EARTH (setup protocol mappings) in order to design an integrated architecture. This memo bases on [3] for what is related to service mapping issues. We are considering EARTH, not MARS [4] not because of differences in address resolution between the two (the multicast ARP support in EARTH mainly follows perfectly specified parts of that in MARS ) but because of architectural advantages of EARTH ....

....as the distribution of the RSVP signalling messages is organized on the base of the EARTH control connections. Service mappings. The MIS architecture bases on the ongoing work of the ISSLL IETF workinggroup for what is related to service mappings issues, in particular on what is specified in [3]. Adaptation protocols. By supporting the quantized heterogeneity model, the MIS is capable of augmenting the native capabilities of the ATM link layer (single QoS per ATM multicast session) thus providing a set of different QoS levels to each IP Multicast session. Statement of ....

M. Garret and M. Borden. Interoperation of Controlled-Load and Guaranteed Services with ATM. Work in progress - Internet Draft, IETF, July 1997. draft-ietf-issll-atm-mapping-03.txt.

....virtual circuits (SVCs) It provides an overall approach to the problem as well as a specific method for running over today s ATM networks. There are two parts of this problem. This draft provides guidelines for using ATM VCs with QoS as part of an Integrated Services Internet. A related draft[6] describes service mappings between IP Integrated Services and ATM services. Authors Note The postscript version of this document contains figures that are not included in the text version, so it is best to use the postscript version. Figures will be converted to ASCII in a future version. ....

....model, QoS translation and VC management. QoS translation concerns mapping a QoS from the IIS model to a proper ATM QoS, while VC management concentrates on how many VCs are needed and which traffic flows are routed over which VCs. Mapping of IP QoS to ATM QoS is the subject of a companion draft[6]. This draft concentrates on VC management (and we assume in this draft that the QoS for a single reserved flow can be acceptably translated to an ATM QoS) Two types of VCs need to be managed, data VCs which handle the actual data traffic, and control VCs which handle the RSVP signalling Berson, ....

Borden, M., and Garrett, M., "Interoperation of Controlled-Load and Guaranteed-Service with ATM," Internet Draft, June 1996.

....service classes for controlled load and guaranteed service. R K E R E E L S N U Control Path RSVP Daemon Applications SOCKET LAYER TCP UDP IP IFNET NDD QOSMGR Data Path Figure 1: Protocol stack architecture and extensions. We also support the rsvp service mappings defined for the atm interface [20], and plan to support the service definitions for lan interfaces as they become mature. Clear separation of control and data paths: In the traditional socket api, control and data are handled on the same socket. Control parameters are usually passed using ioctl or setsockopt function calls. ....

....connnections, which sets the peak rate for the atm vc. In all our experiments the best effort bandwidth was set to 10 Mb s. When a reservation is established, a new virtual connection is created using the traffic parameters specified for the reservation following the mapping rules specified in [17, 20]. In our implementation, when neither traffic policing nor shaping is requested, the session data is directed to the vc that was created for the session (the session vc) On the other hand, when traffic policing is requested, the QoS Manager directs compliant packets to the session vc and ....

M. W. Garret and M. Borden. Interoperation of Controlled-Load and Guaranteed Services with ATM. IETF draft draft-ietf-issll-atm-mapping-03.txt, July 1997. Bellcore/New Oak Communications.

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Borden, M., and M. Garrett, "Interoperation of Controlled-Load and Guaranteed Service with ATM", RFC 2381, August 1998.

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Borden, M., and M. Garrett, "Interoperation of Controlled-Load and Guaranteed-Service with ATM", RFC 2381, August 1998.

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Borden, M., and M. Garrett, "Interoperation of Controlled-Load and Guaranteed-Service with ATM", RFC 2381, August 1998.

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M. Garret and M. Borden, "Interoperation of Controlled-Load and Guaranteed Services with ATM," Work in progress - Internet Draft, IETF, Mar. 1997. draft-ietf-issll-atm-mapping-02.txt.

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