Avaya Integrated Management
226 Avaya Application Solutions IP Telephony Deployment Guide
Centralized (hybrid)
The centralized management model strives to make all network management available in a
central location. It generally begins with a framework product such as HP OpenView NNM. This
framework product serves as an SNMP trap receiver for alarm data sent by networking devices.
It also provides network topology discovery and availability testing.
Figure 67: Centralized management model
Additional management tools, such as Avaya MultiService Network Manager, attach to the
framework (
Figure 67: Centralized management model
). They can be launched directly from
the underlying application, and can share data with it. This allows a network administrator to go
to a central location for most network management and configuration tasks. Client devices are
configured to send alarm and event data to the centralized manager, generally through SNMP.
The management station also has the ability to periodically poll the client for specific
information. This can be used to graph performance, for example. Polling can also be used for
inventory management.
There are many advantages to this model:
●
Because a centralized location is used, fewer administrators are required to manage a
network.
●
Administrators are more likely to catch critical information because it is all in one place.
●
Administrators need to learn fewer interfaces, which reduces training costs.
●
More advanced centralized management products offer event correlation, which increases
the likelihood of proactively catching a problem before it adversely affects users.
The disadvantage to the centralized model is cost. Typically, centralized management tools cost
more than distributed tools. In addition, the implementation and integration can be complex.
Finally, the enterprise must adjust the manager as the network changes. If the management
server is not actively maintained, it quickly falls into disuse.
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 ...