© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-1 Accommodating Voice and Video in Campus Networks Planning for Support of Voice and Video.

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Presentation transcript:

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-1 Accommodating Voice and Video in Campus Networks Planning for Support of Voice and Video in a Campus Network

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-2 Unified Communications Components of Unified Communications  IP phones  Call agent (Cisco Unified Communications Manager)  Voice Gateways to PSTN  Application server (voice mail)  Conference station (voice and video)  IP network (router and switches)

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-3 IP Telephony Components

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-4 Characteristics of Voice and Data

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-5 Video Applications Video collaboration Cisco TelePresence IP surveillance Digital media systems Characteristics of video applications  Most are interactive  Video contains voice as well  Requires a connection with little delay to prevent jitter (same as with voice)  Requires a high-bandwidth connection depending on the video resolution  Peer-to-peer traffic  Video endpoints are connected to the access layer

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-6 Voice and Video Traffic

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-7 Requirements for Voice, Data, and Video Traffic RequirementsVoice trafficData trafficVideo traffic BandwidthLowHigh DelayShort Mostly no problem Constant or short JitterLittle Mostly no problem Little Packet lossLittle Mostly no problem Little AvailabilityHigh Medium PowerYesNone SecurityMediumHighLow or medium Provisioning Management High (DHCP) Medium (DHCP) Medium

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-8 Voice and Video in the Campus Network

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-9 Summary  IP phones, call agent, and application servers are used for unified communications.  Voice sends a constant data stream while data traffic sends changing amounts of data (bursts).  Video applications increase bandwidth requirements in the network.  Video collaboration, digital media systems, and IP surveillance are emerging video applications.

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—8-10