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Change control
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
identify testing and validation requirements.
Table 85: Test and validation risk levels
Risk level
1
2
3
4
5
374 Avaya Application Solutions IP Telephony Deployment Guide
Definition
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.
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.
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.
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.
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.
defines five different risk levels that might help
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