D. Decasper, M. Waldvogel, Z. Dittia, H. Adiseshu, G. Parulkar, and B. Plattner, "Crossbow---a toolkit for integrated services over cellswitched IPv6," in IEEE ATM Workshop, Lisboa, Portugal, June 1997.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....techniques, charging schemes, and cost splitting. In this section we review existing work on these aspects. Measurement techniques. Proposed solutions include moving the measurement to the edge of the network [ShCE96] or integrating specialized modules into switches or routers [EdMV95, DeWD97] Alternative approaches define dedicated measurement devices [EdMV95] and statistical sampling methods [Vie90] Different measurement granularity levels can be considered, e.g. virtual connections [Kell96, CoKW97] or TCP flows. Metering of resource consumption can be avoided by limiting usage ....

D. Decasper, M. Waldvogel, Z. Dittia, H. Adiseshu, G. Parulkar, and B. Plattner. Crossbow - A Toolkit for Integrated Services over Cell-Switched IPv6. In Proc. of the IEEE ATM'97 Workshop, Lisboa, Portugal, June 1997.

....resources needs support for measuring the amount of used resources in the network. Proposed solutions for measuring techniques include moving the measurement to the edge of the network [ShCE96] or integrating CHARGING AND ACCOUNTING FOR QOS ENHANCED IP MULTICAST specialised modules into switches [DeWD97]. Different measurement granularity levels, e.g. virtual connections [CoKW97] or TCP flows, have also been considered. A number of approaches have been presented for introducing differentiated pricing for different QoS levels. Cocchi et al. CoES93] introduced a simple priority model with an ....

....extent selected related work covers aspects of IntServ, DiffServ, and multicast. Coverage of the topics ( yes ) is distinguished from cases where the topics are not described ( n.d. Support for IntServ Support for DiffServ Support for Multicast [CaSZ98] yes n.d. yes [ClFa97] yes n.d. n.d. [DeWD97] yes n.d. n.d. EiHu98] n.d. yes yes [FaSP98] yes n.d. yes [HeSE97] yes n.d. yes [KaSW98, KaSW99] yes n.d. n.d. KiKR98] n.d. yes n.d. VIPCAS yes yes yes Table 1: Coverage of IntServ, DiffServ and multicast by selected existing approaches From Table 1, we can notice that most schemes ....

D. Decasper, M. Waldvogel, Z. Dittia, H. Adiseshu, G. Parulkar, and B. Plattner. Crossbow - A Toolkit for Integrated Services over Cell-Switched IPv6. In Proc. of the IEEE ATM'97 Workshop, Lisboa, Portugal, June 1997.

....Charging can be based on link bit rate share used by the service [22] or on resource rate and buffer space [23] In [23] models are proposed for deriving resource costs from an IntServ flow specification. Different flow measurement methods for charging and accounting purposes are considered in [13] while different measurement granularity are discussed in [12] Further related work can be found in [16,19,24, 25,31,32] Multicast Support Charging for multicast services has raised several challenging tasks like the calculation of tree costs, multicast savings and cost sharing mechanisms ....

D. Decasper, M. Waldvogel, Z. Dittia, H. Adiseshu, G. Parulkar, and B. Plattner. Crossbow - A Toolkit for Integrated Services over Cell-Switched IPv6. Proc. of IEEE ATM'97 Workshop, Lisboa, Portugal, June 1997.

.... processing tasks has been investigated, e.g. in the x kernel for modular protocols [11] the Scout operating system for path based module interconnections [12] and the Crossbow project supporting a high performance toolkit for experimenting with IP (Internet Protocol) next generation protocols [13]. In particular, for middleware supporting tailored communication protocols accommodating the needs of communications, a suitable run time system for fine grained and interoperating modules is essential. In contrast to the Integrated Layer Processing approach (ILP) 14] Da CaPo favors a modular ....

D. Decasper, M. Waldvogel, Z. Dittia, H. Adiseshu, G. Parulkar, and B. Plattner, "Crossbow---a toolkit for integrated services over cellswitched IPv6," in IEEE ATM Workshop, Lisboa, Portugal, June 1997.

....requested resources. Primarily, bandwidth is used as a measure, but also the delay introduced by the charging protocol is studied. Additionally, the interworking of the different pricing models and payment modes is discussed. Measurements were performed on a testbed of Crossbow routers and hosts [6]. Although this platform provides IP version 4 and 6 stacks the overhead was measured using IP version 4 and UDP as a transport protocol. The machines used were PCs with 233 MHz AMD K6 processors, running NetBSD 1.21, having 512 kByte of second level cache and sufficient amounts of memory to hold ....

D. Decasper, M. Waldvogel, Z. Dittia, H. Adiseshu, G. Parulkar, B. Plattner, Crossbow - A Toolkit for Integrated Services over Cell-Switched IPv6, Proceedings of the IEEE ATM'97 Workshop, Lisboa, Portugal, June 1997.

.... state inserted in kernel 3) Request sent to remote site Control Flow Data Flow SSP TCP UDP IP Packet Classifier Packet Scheduler Network Driver User Application Figure 11: ssp Host Implementation ssp has been implemented as part of a testbed on IntServ label switching networks [Dec95] The testbed comprises multiple workstations linked together by label switched routers based on cell switching. The workstations, as well as the control processors of the lsrs are 200 MHz Pentium Pro pcs running the NetBSD operating system. ssp is used as a signaling protocol to reserve ....

Decasper D., Waldvogel M., Dittia Z., Adiseshu H., Parulkar G. and Plattner B. Crossbow - A Toolkit for Integrated Services over Cell Switched IPv6. In Proceedings of the IEEE ATM'97 workshop, 1995.

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Dan Decasper et al. Crossbow --- a toolkit for integrated services over cell switched IPv6. In Proceedings of the IEEE ATM'97 workshop, Lisboa, Portugal, May 1997.

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