Understanding the AVVID Architecture
Today's networks carriage an added avant-garde arrangement of casework such as articulation and video, and appliance cartage including analytical e-business and advice services. To abetment arrangement architects in the able architectonics of able networks, Cisco created the Architectonics for Voice, Video, and Integrated Abstracts (AVVID). The AVVID architectonics is based on an open, multiservice archetypal and is composed of four interrelated, yet audible layers as follows:
Network Basement Layer
Services Ascendancy Layer
Application Intelligence Layer
Client Layer
The Cisco AVVID end-to-end architectural archetypal is apparent in Figure 1.1.
Figure 1.1: The AVVID Architectural Archetypal
The Arrangement Basement Band provides the background for the AVVID architectonics and is composed of switches, firewalls, IDS, VPN and aegis appliances, gateways, and routers. These are the accessories and casework that accommodate the basal carriage mechanisms for the network. It is in the Arrangement Basement Band that able argumentation is functionally applied, accouterment QoS, security, wire acceleration switching, and adapted routing. Specific examples in the Arrangement Basement Band ability accommodate Cisco Catalyst 6500 switches, Cisco PIX firewalls, Cisco 4200 Series IDS, and Cisco 7500 Series routers.
The Casework Ascendancy Band provides administration of mechanisms activated in the Arrangement Basement Band such as QoS and action control, agreeable administration control, wireless admission control, and alarm control, amid others. This band is composed of ascendancy consoles abnormally ill-fitted to abetment in the administration of the complexities present in the Arrangement Basement Layer. For instance, the CiscoWorks administration modules and the PIX Device Manager are both examples of systems that could be present in the Casework Ascendancy Layer.
These apparatus accommodate reliable and able advice amid the Client Layer, composed of AVVID accessories such as IP phones, wireless devices, PCs, and video accessories and the Appliance Layer. The Client Band has become added adult in contempo years to absolutely advantage the growing account of avant-garde applications that advance added business functionality. This composure places demands on the Arrangement Basement Band for added throughput, bargain latency, and added focused services. For example, the arrangement capabilities delivered to the IP Telephone about-face anchorage ability be altered than those provided to a archetypal desktop workstation about-face port. This could be provided by admission anchorage QoS allocation and appearance in the Arrangement Basement Band and controlled via the Casework Ascendancy Layer, which proves the charge for holistic and absolute AVVID design.
The Appliance Band provides the accoutrement and argumentation that advance added able and able business processing. The Appliance Band includes functionality such as telephony application, messaging, video agreeable distribution, and e-commerce services. Anniversary of these casework relies on the able accomplishing of the Arrangement Basement Layer. An archetype of an Appliance Band basic is Cisco Alarm Manager. This appliance provides the functionality and argumentation abaft the IP phones aural the enterprise. It relies on added applications such as Directory Casework to accommodate affidavit and different casework to anniversary IP Phone user. Along with the Client Band IP Phones, it additionally relies on a able-bodied and anatomic arrangement over which it can accommodate services.
The overarching affair of the AVVID architectonics is the use of a distinct converged IP arrangement for voice, video, and abstracts traffic. Doing so facilitates assets in operational and abstruse efficiency, and reduces absolute amount of buying for those brief from acceptable break of casework beyond assorted infrastructures. AVVID additionally incorporates centralized ascendancy and administration of the basement for added authoritative productivity.
The allowances of AVVID are
Integration By application the Cisco AVVID architectonics and applying the arrangement intelligence imbedded aural IP, companies can advance absolute accoutrement to advance productivity.
Intelligence AVVID promotes the prioritization of cartage and delivers able arrangement casework to aerate arrangement ability and performance.
Innovation Cisco barter can acclimate bound to a alteration business environment.
Interoperability Standards-based APIs accredit affiliation with third-party developers.
With the added assurance on the IP arrangement basement comes amplified requirements for arrangement capacity, QoS, resiliency, and security, however. These analytical arrangement attributes are imbedded throughout the Cisco AVVID architecture. For added advice apropos Cisco AVVID, go to www.cisco.com/go/avvid. To abode the charge for security, Cisco developed the SAFE blueprint, which augments the AVVID architecture.