Reliability and Recovery
264 Avaya Application Solutions IP Telephony Deployment Guide
The following two tables show the result of the projected availability analysis for this
configuration.
The site availability values listed in the second column of
Table 56: Case Study I: Standard
Configuration Availability and Impact of WAN Outages on Each Site
on page 264 represent
Avaya Communication Manager solution availability values. The site availability values listed in
column 4 include the impact of the enterprises’ data network availability value on each site’s
solution.
This combined value is assessed by considering the components involved to complete a call
from point A to point B. For example, for the calls generated in Boston the following components
are involved: Servers in Atlanta, Control signaling link over Atlanta LAN connection, WAN link
between Boston and Atlanta, Boston LAN connection, and the Media Gateway in Boston.
Table 57: Example Site Availability Calculation.
shows the resulting calculation.
:
Table 56: Case Study I: Standard Configuration Availability
and Impact of WAN Outages on Each Site
Avaya Product
Enterprise’s Solutions including
LAN and WAN Link Availability
Site
Availability
Annual
Downtime
Minutes
Availability
Per Site Annual
Downtime
Minutes
Atlanta
99.95%
263
99.95%
263
Boston
99.95%
263
99%
5260 (88 hr)
Cleveland
99.95%
263
99%
5260 (88 hr)
Table 57: Example Site Availability Calculation.
Component
Availability
Downtime minutes per year
S8700 Servers in
Atlanta
99.9995%
1
1. The duplex S8700 hardware calculation projects higher availability. The listed
number is a projected number for both hardware and Avaya CM software
application supported by the servers.
2.6
Data network between
Atlanta and Boston
99% -- 99.5%
2630 to 5260
Boston Media Gateway
99.95%
262.98
Aggregated
98%--99.4%
3155.76 (2.6 + 2630 +
262.98) to 7863 (2.6 + 5260
+262.98)
Summary of Contents for Application Solutions
Page 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Page 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Page 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Page 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Page 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Page 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...