D. Verma and H. Zhang, Design Documents for RTIP / RMTP, unpublished, University of California at Berkeley and International Computer Science Institute, Berkeley, CA (May 1991).  Home/Search   Document Not in Database   Summary   Related Articles   Check

....TCP Transport Ctrl. Protocol IP Internet Protocol Applications Common datalink layer Figure 2: Network architecture of Tenet Suite 1. 3 The architecture of Tenet Suite 1, shown in Figure 2, consists of the network protocols RTIP, RMTP, and RCAP. Real Time Internet Protocol (RTIP) [8] exists at the network layer and guarantees end to end packet delivery. Real time Message Transport Protocol (RMTP) is a transport layer protocol that sits above RTIP, fragmenting and reassembling messages as required. Real time Channel Administration Protocol (RCAP) 9] 10] is responsible for ....

D. Verma and H. Zhang, Design Documents for RTIP / RMTP, unpublished, University of California at Berkeley and International Computer Science Institute, Berkeley, CA (May 1991).

....UDP called RDP. RDP is a light weight transport protocol that uses a rate based flow control and allows the user to obtain higher performance from the network. This work starts from an evaluation of the following other approaches: SRP [4] RTP [5] ST II [6] FLOWS [7] RSVP [8] and Tenet Suite 1 [9, 10] (a detailed comparisons can be found in [11] The paper is organized as follows: in Sect. 2 the characterization of data streams is presented. Section 3 shows the structure of the IP based nodes. Section 4 presents a complete description of the RDP protocol, and then Section 5 gives the ....

D. Verma and H. Zhang, "Design document for RTIP/RMTP." ICSI-International Computer Science Institute, Berkeley, CA, 1994.

....delay and the delay probability are computed and communicated to the nodes in the message sent back to the source to confirm the establishment of the channel. 3. The client network interaction A complete suite of real time communication protocols has been developed on the model we presented above [Lowe91, VeZh91, MoWo91]. In particular, the procedures for the establishment and the management of the channels are included in the Real Time Channel Administration Protocol (RCAP) BaMa91] The algorithm implemented by RCAP to establish a channel is briefly presented in Fig. 1. test = OK node = origin ....

D. C. Verma and H. Zhang, "Design Document for RTIP/RMTP", unpublished technical report, May 1991.

....Header Magic Number: CMT Clipfile Media Type: VIDEO Format: JPEG Version: 1.0 NumFrames: 80 FOT Address: 1024722 FTT Address: 1031890 Media Dependent Header Width: 320 Height: 240 Q factor: 75 Max Frame Size: 18624 Raw Data FOT FOT[0] 256 FOT[1] 12756 . FOT[79]: 1007122 FOT[80] 1024722 FTT FTT[0] 0.0 FTT[1] 0.0416 FTT[2] 0.0833 . FTT[79] 3.2916 FTT[80] 3.3333 0 128 256 1024722 1031890 Byte Address Figure 4 5: CMT Clipfile Format 74 formats, a single sample is too small a unit for efficient transmission (e.g. 1 2 byte samples ....

....80 FOT Address: 1024722 FTT Address: 1031890 Media Dependent Header Width: 320 Height: 240 Q factor: 75 Max Frame Size: 18624 Raw Data FOT FOT[0] 256 FOT[1] 12756 . FOT[79] 1007122 FOT[80] 1024722 FTT FTT[0] 0.0 FTT[1] 0.0416 FTT[2] 0.0833 . FTT[79]: 3.2916 FTT[80] 3.3333 0 128 256 1024722 1031890 Byte Address Figure 4 5: CMT Clipfile Format 74 formats, a single sample is too small a unit for efficient transmission (e.g. 1 2 byte samples for audio) In such cases, larger groups of samples may be used as frames. The size of a frame is ....

D. Verma, H. Zhang, Design documents for RTIP/RMTP, unpublished manuscript (1991).

....of a real time protocol suite. Connection establishment and teardown (including resource allocation) are provided by a connection administration service (RCAP, cf. BaM91] which will also handle the connection establishment and teardown functions for CM connections. A network service (RTIP, cf.[VeZ91]) which implements the schemes described in [FeV90] will provide network connections with real time guarantees for delay, delay jitter, throughput, and loss. RTIP will allow the transmission of packets via connections established within (possibly a hierarchy of) interconnected subnetworks with ....

D. Verma, H. Zhang, "Design Documents for RTIP/RMTP", unpublished (1991).

....the channel s path, as well as with the transport layer protocol entities at the channel s endpoints. These control paths are shown by the arrows in the protocol stack. The Real Time Internet Protocol (RTIP) provides for connection oriented, performanceguaranteed, unreliable delivery of packets [VerZha91]. It occupies a place analogous to IP in the Internet Protocol suite. In fact, an earlier design of RTIP, described in [Lowery91] was based on IP and supported real time communication using the IP options fields (thus the origins of this protocol s name) The services of RTIP are used by two ....

....using the IP options fields (thus the origins of this protocol s name) The services of RTIP are used by two different transport layer protocols. The Real Time Message Transport Protocol (RMTP) provides the service of connection oriented, performance guaranteed, unreliable delivery of messages [VerZha91]. This transport layer is quite lightweight. Two features frequently associated with transport layers, connection management and reliable delivery through retransmission, are absent from this protocol (the former is provided by RCAP and the latter is incompatible with the notion of guarantees on ....

D. Verma and H. Zhang. "Design Documents for RTIP/RMTP", unpublished report, University of California at Berkeley and International Computer Science Institute, Berkeley, California, May 1991.

....the protocol itself, our plans for implementation, and current status of our research. 1. Introduction The Real time Channel Administration Protocol (RCAP) BanMah91] Low91] provides control services for the Tenet real time protocol suite, which consists of the Real time Internet Protocol (RTIP) [VerZha91], the Real time Message Transport Protocol (RMTP) and the Continuous Media Transport Protocol (CMTP) WolMor91] The protocol suite is intended to provide packet based data delivery services with guaranteed delay and jitter (delay variance) bounds, bandwidth guarantees, and bounded packet loss. We ....

D. Verma and H. Zhang, "Design Documents for RTIP/RMTP," unpublished report, University of California at Berkeley and International Computer Science Institute, Berkeley, California, May 1991.

.... been performed to verify that performance guarantees are met and to compare the number of connections that can be supported when using CMTP versus the number that can be supported when using the Real Time Message Protocol (RMTP) a transport protocol in the Tenet suite designed for discrete media [VeZ91]. For these experiments, we have assumed a pointto point network with store and forward nodes. Video frames (320x240x8 bits grey scale) were compressed by first taking the difference from the previous frame and then applying the quadtrees algorithm [TaP89] to the result; however, every 15th frame ....

D. Verma and H. Zhang, "Design Documents for RTIP/RMTP", unpublished (1991).

....for other Unix workstations. A special purpose datagram protocol was implemented to send CM packets from the file server to the client workstation. The current implementation runs on UDP, but it was designed to use the real time IP protocol being developed by another research group at Berkeley [18]. We have run the player on a conventional ethernet and FDDI network. The remainder of the paper describes the design and implementation of the player, the results of some initial performance experiments, and related work. This research was supported by the National Science Foundation (Grant ....

Verma, D., and H. Zhang, Design documents for RTIP/RMTP, unpublished manuscript (1991).

.... from A to R, and assume that node d of Casenet is to be connected to either node 1 or node 2 of Xunet 2; connection to node 1 requires that SH (see Figure 1(a) have a Casenet interface as well as an FDDI interface, and that both networks run the same real time internetwork protocol (e.g. RTIP [VeZh91]) connection to node 2, in the context of a 19 channel from A to R, could result from interfacing node d either to the FDDI ring on the SH side of the route shown in Figure 1(a) or to SR directly. The former solution is shown in Figure 4(a) the latter in Figure 4(b) In both cases, hosts A ....

....FDDI ring on the SH side of the route shown in Figure 1(a) or to SR directly. The former solution is shown in Figure 4(a) the latter in Figure 4(b) In both cases, hosts A and R are able to communicate with guaranteed performance only if they run the same real time transport protocol (e.g. RMTP [VeZh91] or CMTP [WoMo91] If, on the other hand, the two networks run two different real time internetwork protocols, their connection must go through a protocol converting gateway, as shown in Figure 4(c) This solution is to be adopted also when real time services are requested from a backbone such as ....

Verma, D. C., and H. Zhang, "Design Document for RTIP/RMTP," unpublished Tenet Group report, May 1991.

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