Change control
384 Avaya Application Solutions IP Telephony Deployment Guide
Implementation
If the process of assigning risk and documentation occurs before the implementation, the actual
implementation should be straightforward. Beware of the potential for changes to come from
multiple support personnel without their knowing about each other’s changes. This scenario can
lead to increased potential time out of service and misinterpretation of the problem.
Test and evaluation
In this phase, the person who initiated the change is responsible for ensuring that the
emergency change had the desired affect and if not, restarting the emergency change process.
Steps to take in the investigation of the change include the following:
●
Observe and document the impact of the change on the problem.
●
Observe and document any foreseen or unforeseen side effects of the change.
●
Determine whether the problem is resolved, and if so, make sure all necessary
documentation and network management updates occur to properly reflect the change.
●
If the change is unsuccessful, back out, and continue the emergency change process until
the problem is resolved or a workaround is in place.
Once the change is deemed successful, send all emergency change documentation to the
change controller for review and documentation by the change control team. The change
controller and change review team should perform a post mortem on the problem to determine
potential improvements to prevent future emergency changes of this type. You should also send
the information to engineering or architecture groups for review, and allow them the opportunity
to change solution templates, standard software versions, or network designs to better meet the
goals or requirements of your organization.
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 ...