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This section covers designs for high availability network services in the access layer. Redundancy Models When designing a network topology...
High Availability Network Services
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Virtual Switching System (VSS) solves the Spanning Tree Protocol unused blocked links problem by converting the distribution switching pair into...
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For the access layer of a campus LAN, you can classify and mark frames or packets to apply quality-of-service (QoS)...
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Demand for bandwidth in metropolitan-area networks (MANs) is increasing due to the high throughput requirements of data-intensive applications. Today, many...
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Dense wavelength-division multiplexing (DWDM) increases the bandwidth capabilities of fiber by using different wavelengths of light called channels over the...
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Software-defined networking is a centralized approach to managing a network that abstracts away the underlying network infrastructure from its applications....
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Layer 3 VPN service provides routed Layer 3 connections between sites. With Layer 3 VPNs, you exchange routes with the...
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Because VPLS provides a Layer 2 switched segment between sites, you can choose to control the Layer 3 routing between...
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Cisco developed Generic Routing Encapsulation (GRE) to encapsulate a variety of protocols inside IP tunnels. This approach consists of minimal...
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Depending on the cost of downtime for an organization, different levels of redundancy can be implemented for a remote site....
