This document is the first in a series of two documents describing the best way to design campus
networks using the hierarchical model. The second document, High Availability Campus Recovery
Analysis, provides extensive test results showing the convergence times for the different topologies
described in this document, and is available at the following website:
This document provides design guidance for implementing a routed (Layer 3 switched) access layer
using EIGRP or OSPF as the campus routing protocol. It is an accompaniment to the hierarchical campus
design guides, Designing a Campus Network for High Availability and High Availability Campus
Recovery Analysis, and includes the following sections
For campus networks, Cisco recommends a hierarchical network design that distributes networking
function at each layer through a layered organization. The hierarchical model enables the design of a
modular topology using “building blocks” that are scalable and allow the network to meet evolving
The hierarchical model is based on a modular design, which is easy to scale, understand, and
troubleshoot because it follows a deterministic traffic pattern. The principle advantages of the
hierarchical model are:...
Objectives in chapter 2: Design and plan VLANs, trunks, and addressing to meet business requirements, technical requirements, and constraints; design and plan VLANs, trunks, and addressing to meet business requirements, technical requirements, and constraints; configure VTP in the campus network to support business and technical requirements;...
As of November 8, 2010, Manually entered IP addresses are no longer supported on campus if the device is capable of using DHCP. This is true for normal dynamically assigned IP's and Static IP's. All NEW devices added to the network must be set to receive their network address via DHCP (Dynamic Host Configuration Protocol). This is the default setting for campus PC and Mac workstations and most printers. No user action is anticipated. There is no change or downtime expected for the vast majority of campus workstations or devices. We have made great efforts to put exceptions in place...
This document guides customers in their planning or deployment of IPv6 in campus networks. This
document does not introduce campus design fundamentals and best practices, IPv6, transition
mechanisms, or IPv4-to-IPv6 feature comparisons. Document Objectives, page 3 provides additional
information about the purpose of this document and references to related documents.
campus network is a building or group of buildings that
connects to one network, called an enterprise network. Typically, one company
owns the entire network, including the wiring between buildings. This
local area network (LAN) typically uses Ethernet, Token Ring, Fiber Distributed
Data Interface (FDDI), or Asynchronous Transfer Mode (ATM)
The main challenge for network administrators is to make the campus
network run efficiently and effectively. To do this, they must understand
current campus networks as well as the new emerging campus networks....
This Study Guide is based on the current pool of exam questions for the 640-604 – Switching 3.0 exam. As
such it provides all the information required to pass the Cisco 640-604 exam and is organized around the
specific skills that are tested in that exam. Thus, the information contained in this Study Guide is specific to
the 640-604 exam and does not represent a complete reference work on the subject of Building Cisco
Multilayer Switched Networks.
Both small and large enterprise campuses require a highly available and secure, intelligent network
infrastructure to support business solutions such as voice, video, wireless, and mission-critical data
applications. To provide such a reliable network infrastructure, the overall system of components that
make up the campus must minimize disruptions caused by component failures.
Offers hierarchy—each layer has
• Modular topology—building blocks
• Easy to grow, understand, and
• Creates small fault domains—clear
demarcations and isolation
• Promotes load balancing and
• Promotes deterministic traffic patterns
• Incorporates balance of both Layer 2 and
Layer 3 technology, leveraging the
strength of both
• Can be applied to all campus designs;
multilayer L2/L3 and routed access
This network documentation policy is an internal IT policy and defines the requirements for
network documentation. This policy defines the level of network documentation required such as
documentation of which switch ports connect to what rooms and computers. It defines who will
have access to read network documentation and who will have access to change it. It also defines
who will be notified when changes are made to the network.
Chapter 1 include objectives: Describe common campus design options and how design choices affect implementation and support of a campus LAN; describe the access, distribution, and core layers; describe small, medium, and large campus network designs;...
Chapter 7 objectives: Assess the impact of WLAN’s, voice and video on campus infrastructure operations; describe quality of service in a campus infrastructure to support advanced services; implement multicast in a campus infrastructure to support advanced services;...
This document provides design considerations and guidelines for implementing Cisco Quality of Service
within an enterprise environment.
This document is the second major update to the design guidelines and information presented in the
Cisco AVVID Network Infrastructure Enterprise Quality of Service Design Solutions Reference Network
Design (August, 2002).
This document assumes that you are already familiar with Quality of Service terms and concepts. If you
want to review any of those terms and concepts, refer to Cisco Quality of Service documentation at:...
This Study Guide is targeted specifically at people who wish to take the Cisco CCNP 640-606 – Support
(CIT) exam. This information in this Study Guide is specific to the exam. It is not a complete reference work.
Although our Study Guides are aimed at new comers to the world of IT, the concepts dealt with in this Study
Guide are complex and require an understanding of material provided for the Cisco Certified Network
Associate (CCNA) exam 640-607. Knowledge of CompTIA’s A+ course would also be advantageous but is
not a requirement....
The following 3 questions all refer to the scenario below: The company Certkiller
manufactures and imports fasteners like bolts and nuts. The company's network consists of a main campus
composed of three separate building that are less than 150 meters apart, connected with Category 5e copper
wiring. Network access as well as distribution takes place by means of 100 Mbps hubs, and the core is a 100
Mbps Layer-2 switch. The company has been in existence for 8 years and thus development in the network
resulted in a series of steps that involved minimal planning.
This study focuses on the future direction in wireless/mobile telecommunications as a standalone concept for building wireless IP systems, including commercial, campus, local and global networks. It examines the integration of the Internet and mobile networks, which are merging as a result of global demand for seamless mobile communication.
This document provides design recommendations, configuration examples, and scalability test results for implementing a next-generation WAN for Voice and Video Enabled IPsec VPN (V3PN) based on a service provider WAN interface handoff using Ethernet at the enterprise campus and branch locations. This document provides the enterprise network manager with configuration and performance guidance to successfully implement or migrate to a WAN architecture using Ethernet as an access technology to a service provider network....