Cisco Cisco Prime Infrastructure 3.0 Weißbuch
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How Does Application Visibility and Control Work?
AVC uses a number of technologies and consists of four functional components:
The Cisco AVC solution uses multiple technologies to recognize, analyze, and control more than 1000 applications
including voice and video, email, file sharing, gaming, peer-to-peer (P2P), and cloud-based applications.
Cisco AVC has the following functional components:
●
Application Recognition: With Cisco AVC, Cisco ASR 1000, ISR G2, and Cisco Wireless Controllers can
identify more than 1000 applications within the traffic flow using NBAR2, Cisco’s innovative deep packet
identify more than 1000 applications within the traffic flow using NBAR2, Cisco’s innovative deep packet
inspection (DPI) technology. In order to address the evolvin
g nature of applications, NBAR2’s application
signature can be updated through Protocol Pack while the router is in service.
●
Performance Collection and Exporting: Cisco AVC uses an embedded monitoring agent to collect
application response time (ART) metrics such as transaction time and latency for TCP applications, and
packet loss and jitter for voice and video applications. These metrics are aggregated and exported using
standard flow export formats such as NetFlow Version 9 and IPFIX.
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Management Tool: With open flow export formats such as NetFlow Version 9 and IPFIX, Cisco Prime
Infrastructure and other third-party network management tools can consume data exported by AVC. This
gives customers flexibility to use the Cisco management tool or to use the management tool of their choice.
●
Control: By utilizing common DPI technology, NBAR2, these routers can reprioritize critical applications or
enforce application bandwidth use using Cisco’s industry-leading quality of service (QoS) capabilities. In
enforce application bandwidth use using Cisco’s industry-leading quality of service (QoS) capabilities. In
addition, intelligent application path selection based on real-time performance is provided through Cisco
Performance Routing (PfR).