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Cloud-based SD-WAN offers advanced features, such as enhanced security, seamless cloud, and support for mobile users, that result naturally from the use of cloud infrastructure. As a result, cloud-based SD-WAN can replace MPLS, enabling organizations to release resources once tied to WAN investments and create new capabilities. [34]
There are several types of Cisco Interface Card. Cisco introduced the High Speed WIC, or "HWIC" with the x800 series of Cisco Integrated Service Router including the 1800, 2800, and 3800 series'. The HWIC interface is limited to 400 mega-bits per second bandwidth bidirectional. [2] With the ISR G2 x900 series Cisco introduced the Enhanced HWIC.
An SD-WAN is a WAN managed using the principles of software-defined networking. [51] The main driver of SD-WAN is to lower WAN costs using more affordable and commercially available leased lines, as an alternative or partial replacement of more expensive MPLS lines. Control and management is administered separately from the hardware with ...
X.25 is an ITU-T standard protocol suite for packet-switched data communication in wide area networks (WAN). It was originally defined by the International Telegraph and Telephone Consultative Committee (CCITT, now ITU-T) in a series of drafts and finalized in a publication known as The Orange Book in 1976.
Dynamic Multipoint Virtual Private Network (DMVPN) [1] is a dynamic tunneling form of a virtual private network (VPN) supported on Cisco IOS-based routers, and Huawei AR G3 routers, [2] and on Unix-like operating systems.
These tools have capabilities in common with drawing tools and network monitoring tools. They are more specialized than general drawing tools and provide network engineers and IT systems administrators a higher level of automation and the ability to develop more detailed network topologies and diagrams.
Though network documentation can be done by hand, large organizations must use network documentation software, including diagramming tools, inventory management, and circuit and cable traces. Examples include draw.io, Graphical Networks' netTerrain, [4] Microsoft Visio, [5] Docusnap, Gliffy, [6] Opnet's Netmapper, and XIA Configuration. [7]
The Service Design Package (SDP) contains the core documentation of a service and is attached to its entry in the ITIL Service Portfolio.. The SDP is described in the book Service Design, one of the five books that comprises the core of ITIL.