Survivability solutions
Issue 6 January 2008 267
Use the indicated links to access these documents on the Avaya Support web site.
Survivability solutions
Avaya Communication Manger release 3.0 introduces new features in support of enhancing
high availability and survivability. These features are in support of business continuity through
unscheduled outages such as network failure and congestion as well as scheduled outages
such as server upgrades.
General survivability features:
● S8700-series server separation
● Enterprise Survivable Server (ESS)
● Connection preserving upgrades for duplex servers
● Inter-Gateway Alternate Routing (IGAR)
Survivability for branch office media gateways:
● G700/G350 Media Gateway recovery via LSP
● Modem dial backup
● Auto fallback to primary Communication Manager for H.248 media gateways
● Connection-preserving failover for H.248 gateways
● G250 Media Gateway local survivability function (SLS)
Figure 78:
Release 3.0 system example on page 268 summarizes these enhancements:
