Cisco Cisco Unified MeetingPlace Express 2.1 Libro bianco
Cisco Systems
Network Provisioning and Configuration
Page 3
1 I n t r o d u c t i o n
This white paper describes information that may be useful when installing Cisco
MeetingPlace Express.
This white paper is designed to be used in conjunction with the Administrator’s
Installation, Upgrade, and Troubleshooting Guide for Cisco MeetingPlace Express
Release 1.1. It is not intended to be used in place of that guide.
MeetingPlace Express.
This white paper is designed to be used in conjunction with the Administrator’s
Installation, Upgrade, and Troubleshooting Guide for Cisco MeetingPlace Express
Release 1.1. It is not intended to be used in place of that guide.
2 N e t w o r k P r o v i s i o n i n g C o n s i d e r a t i o n s
Cisco MeetingPlace Express sends and receives a mix of traffic including web
conferencing and audio streams. The web conferencing is high bandwidth and the audio
streams have severe latency and packet loss requirements. The network needs to be
provisioned appropriately to avoid either saturating links, affecting both Cisco
MeetingPlace Express and other applications, or damaging the voice quality.
Best practices for provisioning the network for Cisco MeetingPlace Express include the
following:
conferencing and audio streams. The web conferencing is high bandwidth and the audio
streams have severe latency and packet loss requirements. The network needs to be
provisioned appropriately to avoid either saturating links, affecting both Cisco
MeetingPlace Express and other applications, or damaging the voice quality.
Best practices for provisioning the network for Cisco MeetingPlace Express include the
following:
•
Make sure that the network is provisioned to expedite voice traffic. This can be
done by using Differentiated Services Code Point (DSCP) packet marking or by
isolating the voice traffic onto a separate physical network. If using DSCP, make
sure that the local switch honors the DSCP marking supplied by Cisco
MeetingPlace Express.
isolating the voice traffic onto a separate physical network. If using DSCP, make
sure that the local switch honors the DSCP marking supplied by Cisco
MeetingPlace Express.
•
Make sure that your voice gateways properly handle Dual Tone Multifrequency
(DTMF) digits and echo cancellation, as described below.
•
Assume that Cisco MeetingPlace Express is capable of demanding in excess of
1Mbs for each concurrent web conferencing user, although the average is much
less. If your system is licensed for more than about 40 concurrent users, it will
probably benefit from a gigabit Ethernet link and network backbone.
less. If your system is licensed for more than about 40 concurrent users, it will
probably benefit from a gigabit Ethernet link and network backbone.
•
Look for “pinch points” in the network, where multiple users share a relatively
slow line. Wide Area Network (WAN) links often act as pinch points. Make sure
that those links have adequate bandwidth available for this application as you
intend to use it.
that those links have adequate bandwidth available for this application as you
intend to use it.
•
Explicitly configure the Ethernet links rather than relying on auto-negotiation.
2.1 Voi c e ov e r I P ( VoI P) Voi c e
For good voice quality, Cisco MeetingPlace Express needs to be set up on a network that
can provide the following:
can provide the following:
•
Adequate bandwidth to and from the server for all the voice connections.
•
Quality of Service (QOS) or traffic isolation so that other types of traffic will not
interfere with the voice streams.
•
Low latency between the phone and the server.