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Avaya Unified Communications Management in Computer Networking is the name of a collection of GUI software programs from Avaya. It uses a service-oriented architecture (SOA) that serves as a foundation forunifying the configuration and monitoring of Avaya Unified Communications Servers and data systems .
The developmental history of this system extends back to the BayStack 5000 family shortly after the technology was bought from Bay Networks. [11] Software version 6.0 added PIM-SM and Dual Agents. In June 2009 Software version 6.1 was released removing the licensing requirements for the IP Flow Information Export {IPFIX} feature, added force ...
The Avaya Ethernet Routing Switch 8600 or ERS 8600, previously known as the Passport 8600 or the Accelar 8000, is a modular chassis combination hardware router and switch used in computer networking. The system, originally designed and manufactured by Nortel , was manufactured by Avaya from 2009 until 2017.
Geographic redundancy corrects the vulnerabilities of redundant devices deployed by geographically separating backup devices. Geographic redundancy reduces the likelihood of events such as power outages, floods, HVAC failures, lightning strikes, tornadoes, building fires, wildfires, and mass shootings disabling most of the system if not the entirety of it.
The Virtual Router Redundancy Protocol (VRRP) is a computer networking protocol that provides for automatic assignment of available Internet Protocol (IP) routers to participating hosts. This increases the availability and reliability of routing paths via automatic default gateway selections on an IP subnetwork .
The idea of incorporating redundancy in order to improve the reliability of a system was pioneered by John von Neumann in the 1950s. [24] Two kinds of redundancy are possible: [25] space redundancy and time redundancy. Space redundancy provides additional components, functions, or data items that are unnecessary for fault-free operation.
However, ARQ requires the availability of a back channel, results in possibly increased latency due to retransmissions, and requires the maintenance of buffers and timers for retransmissions, which in the case of network congestion can put a strain on the server and overall network capacity.
Redundancy is a form of resilience that ensures system availability in the event of component failure. Components ( N ) have at least one independent backup component (+1). The level of resilience is referred to as active/passive or standby as backup components do not actively participate within the system during normal operation.