Download Advanced Information Systems Engineering: 7th International by M M Lehman (auth.), Juhani Iivari, Kalle Lyytinen, Matti PDF

By M M Lehman (auth.), Juhani Iivari, Kalle Lyytinen, Matti Rossi (eds.)

This quantity constitutes the court cases of the seventh foreign convention on complex details structures Engineering, CAiSE '95, held in Jyväskylä, Finland in June 1995.
The 26 complete papers offered during this quantity have been chosen from greater than a hundred submissions; additionally there are 3 invited papers. one of the contributing authors are lecturers in addition to details method practitioners from and management. the amount is geared up in sections on behaviour modelling, specifications engineering, 00 strategies and purposes, paintings and communique modelling, meta modelling, consumer interface matters, CASE integration, reuse, conceptual modelling concerns, and software program improvement issues.

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Variable Sized Packets 407 1015_05F9_c1 © 1999, Cisco Systems, Inc. Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. scr 74 37 RTP/RTCP—RFCs 1889/1890 • End-to-end network transport function Payload type identification—voice, video, compression type Sequence numbering Time stamping Delivery monitoring • RTCP (Real-Time Control Protocol) V 4bytes E R CC M Payload Type Sequence Number 4bytes RTP Timestamp 4bytes Synchronization Source (SSRC) ID 407 1015_05F9_c1 75 © 1999, Cisco Systems, Inc.

2 Erlangs 407 1015_05F9_c1 65 © 1999, Cisco Systems, Inc. 1 0 1 2 3 4 5 6 7 8 9 Number of Trunks 407 1015_05F9_c1 © 1999, Cisco Systems, Inc. Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 6 Plan A DDD DDD Dropped 67 © 1999, Cisco Systems, Inc. Agenda • Basic Voice Traffic Engineering • How Costs Impact Trunk Groups • How to Apply Voice Traffic Engineering to a Packet-Based Data Network 407 1015_05F9_c1 © 1999, Cisco Systems, Inc. Copyright © 1998, Cisco Systems, Inc.

Scr 76 38 RSVP: Resource Reservation Protocol Admit Admit One One • IETF signaling protocol Reservation of bandwidth and delay • Flow can be signaled by end station or by router (static reservation) • Basically reserves queue space Non RSVP Enabled Routers Pass the VoIP Flow as Best Effort End Points Send Unicast Signaling Messages (RSVP PATH + RESV) RSVP PATH Message FXS FXS RSVP RESV Message RSVP Enabled Router See the PATH and RESERVE Messages and Allocate the Appropriate Queue Space for the Given Flow 407 1015_05F9_c1 77 © 1999, Cisco Systems, Inc.

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