Change control
374 Avaya Application Solutions IP Telephony Deployment Guide
●
Low-risk. These network changes have minor impact on user environments, and backing
out of the change is easy. Low-risk changes rarely require more than minimal
documentation. User notification is often unnecessary.
Additional risk levels night help identify the correct level of testing and validation prior to a
change.
Table 85: Test and validation risk levels
defines five different risk levels that might help
identify testing and validation requirements.
Table 85: Test and validation risk levels
Risk level
Definition
1
High potential impact to a large number of users (500+) or
business-critical service. Introducing a new product, software,
topology, or feature means network downtime.
2
High potential impact to large number of users (500+) or
business-critical service. Large increases in traffic or users,
backbone changes, or routing changes might require network
downtime.
3
Medium potential impact to smaller number of users or business
service. Any nonstandard change, such as a new product, software,
topology, features, or the addition of new users, increased traffic, or
nonstandard topology may require some network downtime.
4
Low potential impact, including adding new standard template
network modules (building or server switches, IP Telephones,
trunks, or routers); bringing up new remote offices or additional
proven access services; and all risk level 3 changes that have been
tested in the production environment. Change might require some
network downtime.
5
No user or service impact, including adding individual users to the
network, and standard configuration changes such as password,
banner, Simple Network Management Protocol (SNMP), or other
standard configuration parameters. No expected network downtime.
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 ...