Traffic engineering
154 Avaya Application Solutions IP Telephony Deployment Guide
The general formulas used to populate the COI matrix entries in
Table 22: Inbound COI matrix
for the Uniform Distribution model in Example 2: Uniform Distribution model
on page 151,
Table 23: Outbound COI matrix for Uniform Distribution Model in Example 2: Uniform
Distribution model
on page 152, and
Table 24: Intercom COI matrix for the Uniform Distribution
model in Example 2: Uniform Distribution model
on page 153, respectively, for the Uniform
Distribution model are:
Additional comments regarding
Example 2: Uniform Distribution model
In the Uniform Distribution model introduced in
Example 2: Uniform Distribution model
, the
relative weights that are associated with the various sites correspond to the distribution of
stations throughout the sites. Alternatively, the weights could correspond to the relative overall
station usages in the various sites. Such a model takes into account not only the number of
stations, but also how busy the stations are. In
Example 2: Uniform Distribution model
, since
every station is assumed to have the same usage (specifically, 0.11 Erlangs), the weights that
are based on the number of stations per site are exactly the same as the weights that are based
on the overall station usage per site. Such a model is not always appropriate. For example,
consider a system with two sites, with 100 stations in each site. Suppose that the average
usage per station in Site 1 is 0.1 Erlangs, and that the average usage per station in Site 2 is 0.2
Erlangs. In a Uniform Distribution model where the weights are based on station usage per
endpoint, a caller in Site 1 is twice as likely to call a station in Site 2 than a station in Site 1
(because the total station usage in Site 2 is 20 Erlangs, and the total station usage in Site 1 is
only 10 Erlangs). The general formulas used to populate the COI matrix entries in
Table 22: Inbound COI matrix for the Uniform Distribution model in Example 2: Uniform
Distribution model
on page 151,
Table 23: Outbound COI matrix for Uniform Distribution Model
in Example 2: Uniform Distribution model
on page 152, and
Table 24: Intercom COI matrix for
the Uniform Distribution model in Example 2: Uniform Distribution model
on page 153,
respectively, for the Uniform Distribution model based on relative SUR are:
Inbound CUR to Site i
number of stations in Site i
total number of stations
------------------------------------------------------------------
total inbound CUR
(
)
×
=
Outbound CUR from Site i
number of stations in Site i
total number of stations
------------------------------------------------------------------
total outbound CUR
(
)
×
=
Intercom CUR from Site i to Site j
number of stations in Site j
total number of stations
------------------------------------------------------------------
total intercom CUR
originating in Site i
×
=
Inbound CUR to Site i
total station usage in Site i
total station usage
------------------------------------------------------------------
total inbound CUR
(
)
×
=
Outbound CUR from Site i
total station usage in Site i
total station usage
------------------------------------------------------------------
total outbound CUR
(
)
×
=
Intercom CUR from Site i to Site j
total station usage in Site j
total station usage
------------------------------------------------------------------
total intercom CUR
originating in Site i
×
=
Содержание Application Solutions
Страница 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Страница 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Страница 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 74: ...Avaya Application Solutions platforms 74 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Страница 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 214: ...Voice quality network requirements 214 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 239: ...Reliability Issue 3 4 1 June 2005 239 Figure 69 S8700 Media Server in a high reliability configuration ...
Страница 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Страница 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 350: ...Implementing Communication Manager on a data network 350 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Страница 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...