Why is it important to know how to design a LAN?
Why are access layer switches important?
What is Cisco Borderless Network?
What is converged network?
What are the three critical layers of a network?
What is resiliency in network?
How many layers of distribution access are there?
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How can I remotely access my LAN?
Use a VPN. If you connect to your local area network by using a virtual private network (VPN), you don't have to open your PC to the public internet. Instead, when you connect to the VPN, your RD client acts like it's part of the same network and be able to access your PC.
What are the best practices for LAN designing?
Here are a few network design best practices you should keep in mind as you create your WAN or LAN.Choose Equipment Designed for Your Needs. ... Take Wiring and Cabling into Account. ... Standardize as Much as Possible. ... Consider Redundancy. ... Make Monitoring and Management a Priority from the Beginning. ... Secure from Start to Finish.More items...
What is access network design?
An access network is a type of network which physically connects an end system to the immediate router (also known as the “edge router”) on a path from the end system to any other distant end system. Examples of access networks are ISP, home networks, enterprise networks, ADSL, mobile network, FITH etc.
What are the three main types of remote connections?
Remote Access Control MethodsDirect (Physical) Line. The first direct remote access control that can be implemented is a direct line from a computer to the company's LAN. ... Virtual Private Network. Another method which is more common is establishing a VPN. ... Deploying Microsoft RDS.
What are the LAN principles?
The Traditional LAN.The Modern LAN.Principle 1: Outside Looking In.Principle 2: Design for Security and Management.Principle 3: Maximize Efficiencies and Reduce Complexity.Principle 4: Deliver Environmentally Superior Solutions.Principle 5: LAN Separation.Principle 6: Reallocate Resources for ROI.
How do you implement network design?
Designing a network step by stepIdentify the requirements. ... Assess the current state of the network. ... Design your network topology. ... Choose the hardware and software. ... Plan for implementation and beyond.
Is LAN an access network?
A LAN is a computer network that consists of access points, cables, routers, and switches that enable devices to connect to web servers and internal servers within a single building, campus, or home network, and to other LANs via Wide Area Networks (WAN) or Metropolitan Area Network (MAN).
What is LAN explain LAN architecture?
A local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings, however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves.
What are the types of access networks?
Abstract. Ethernet, wireless LAN, ADSL, cable modem, and dialup are common access networks that have dramatically different characteristics. Fast and accurate classification of access networks can benefit a wide range of applications.
What methods can be used to connect remotely?
The primary remote access protocols in use today are the Serial Line Internet Protocol (SLIP), Point-to-Point Protocol (PPP), Point-to-Point Protocol over Ethernet (PPPoE), Point-to-Point Tunneling Protocol (PPTP), Remote Access Services (RAS), and Remote Desktop Protocol (RDP).
What is required for remote access?
Remote computer access requires a reliable internet connection. You'll need to activate or install software on the device you want to access, as well as on the device — or devices — you want to use to get that access.
What is remote access examples?
Accessing, writing to and reading from, files that are not local to a computer can be considered remote access. For example, storing and access files in the cloud grants remote access to a network that stores those files. Examples of include services such as Dropbox, Microsoft One Drive, and Google Drive.
What are the most important factors to consider when designing a new Ethernet LAN?
You should consider four main factors when selecting a LAN technology:Cost efficiency.Installed base.Maintainability.Performance.
What characteristics you must consider while designing a network?
General Network Design ConsiderationsScalability and modularity.Performance.Availability and reliability.Security and Cost.
What is considered for one to have a secure network design?
There are number of things to consider for network security design. They include; defense in depth, compartmentalization, the principle of least privilege, and the weakest link.
6 Design Principles of the Modern LAN | Network Computing
(Image: Pixabay) The Internet of Things (IoT) is changing everything with regard to the modern LAN, as Frost & Sullivan reported in an infographic.As the infographic shows, as enterprises embrace IoT, top challenges surface:
How to Design Switch Network or Designing LAN | CCDA - W7cloud
How to design LAN: LAN design or switching design are very important part of any Network and its play a very significant role in performance of network specially access-network.
Chapter 1: LAN Design
© 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3 1.1 Campus Wired LAN Designs
Network design checklist: How to design a local area network
Editor's note: If your customer wants you to design a local area network, there are numerous tasks to pursue -- working through a networking hierarchy that extends from the access layer to the core, determining what subnet mask to use and, in general, learning the customer's networking requirements.This network design checklist provides tips on how to build a local area network.
What is remote access network?
One of the goals of remote-access network design is to provide a unified solution that allows for seamless connectivity to remote users. This article is about the providing remote access to users which are not in office, with this remote access these users may able to access their office’s network from home or from other offside location. The primary function of remote access is to provide access to your users to internal resources and applications. Because connection requirements drive the technology selection process, it is important that you analyze the application and network requirements in addition to reviewing the available service provider options.
What is MPLS in network?
MPLS provide a fast method for transferring the packet in data network by assigning labels. MPLS can run on many L2 technologies, including ATM, Frame Relay, PPP, Packet over SONET (POS), and Ethernet.
What is remote access server?
The Remote Access server acts as an IP-HTTPS listener and uses its server certificate to authenticate to IP-HTTPS clients. The IP-HTTPS name must be resolvable by DirectAccess clients that use public DNS servers.
What is direct access client?
DirectAccess clients attempt to reach the network location server to determine if they are on the internal network. Clients on the internal network must be able to resolve the name of the network location server, and they must be prevented from resolving the name when they are located on the Internet. To ensure that this occurs, by default, the FQDN of the network location server is added as an exemption rule to the NRPT. In addition, when you configure Remote Access, the following rules are created automatically:
What is a DNS suffix rule?
A DNS suffix rule for root domain or the domain name of the Remote Access server, and the IPv6 addresses that correspond to the intranet DNS servers that are configured on the Remote Access server. For example, if the Remote Access server is a member of the corp.contoso.com domain, a rule is created for the corp.contoso.com DNS suffix.
What is DNS in DirectAccess?
DNS is used to resolve requests from DirectAccess client computers that are not located on the internal network. DirectAccess clients attempt to connect to the DirectAccess network location server to determine whether they are located on the Internet or on the corporate network.
How to use ISATAP?
To use ISATAP do the following: 1. Register the ISATAP name on a DNS server for each domain on which you want to enable ISATAP-based connectivity, so that the ISATAP name is resolvable by the internal DNS server to the internal IPv4 address of the Remote Access server. 2.
Do you have to have a public IP address for DirectAccess?
Ensure that you do not have public IP addresses on the internal interface of the DirectAccess server. If you have public IP address on the internal interface, connectivity through ISATAP may fail.
Can DirectAccess use Teredo?
If the DirectAccess client cannot connect to the DirectAccess server with 6to4 or Teredo, it will use IP-HTTPS. To use Teredo, you must configure two consecutive IP addresses on the external facing network adapter. You cannot use Teredo if the Remote Access server has only one network adapter.
What is Layer 2 access?
An alternative that can handle Layer 2 access requirements and avoid the complexity of the traditional multilayer campus is called a Layer 2 access with simplified distribution layer design. The design uses multiple physical switches that act as a single logical switch, such as switch stack or Cisco StackWise Virtual Pair (SVP), or the less preferred single, highly-redundant physical switch. One advantage of this design is that spanning tree dependence is minimized, and all uplinks from the access layer to the distribution are active and passing traffic.
What is Cisco SD Access?
Cisco SD-Access Wireless is the fabric-enabled wireless solution that, unlike any alternative solution, fully integrates with a wired Cisco SD-Access model. The primary benefit of Cisco SD-Access Wireless is that organizations can have a common policy and unified experience across both wired and wireless. In this model, the fabric WLCs communicate wireless client information to the fabric control plane, and the fabric APs encapsulate traffic into the VXLAN data path.
What controllers support FlexConnect?
A shared controller architecture requires that the WLAN controller support both Cisco FlexConnect local switching and local mode. In this guide, the WLAN controllers that support both are the Cisco Catalyst 9800-80, 9800-40, 9800-L Series appliances and the Cisco Catalyst 9800-CL for private cloud wireless controllers.
What is Cisco FlexConnect?
Cisco FlexConnect is a wireless solution primarily for deployments that consist of multiple small remote sites (branches) connected into a central site. Cisco FlexConnect provides a highly cost-effective solution, enabling organizations to configure and control remote-site APs from the headquarters through the WAN, without deploying a controller in each remote site.
What is the link length of a Cisco 10/25GBASE-CSR module?
Note: The Cisco 10/25GBASE-CSR Module supports a link length of up to 300/400m over OM3/4 at 10G, and up to 300/400m over OM3/4 at 25G – depending upon the multimode fiber quality. It also supports link lengths of 82m over OM2 at 10G, and up to 70m over OM2 at 25G. This module requires RS-FEC on the host port for full reach operation at 25G. Using BASE-R FEC the module can support 70/100m over OM3/4 and with-out FEC it can support 30/50m over OM3/4 at 25G, depending on the multimode fiber quality. For 10G operation FEC is not required
What is Cisco DNA?
Cisco Digital Network Architecture (Cisco DNA) provides a roadmap to digitization and a path to realize immediate benefits of network automation, assurance, and security. The campus local area network (LAN) is the network that supports devices people use within a location to connect to information. The use of the word campus does not imply any specific geographic size or organizational boundary—the campus LAN can range in size from a single switch at a small remote site up to a large multi-building infrastructure, supporting classrooms, carpeted office space, and similar places where people use their devices for their daily activities. The campus design incorporates both wired LAN and wireless LAN connectivity for a complete network access solution. This guide explains:
Can you connect a Cisco Catalyst 9800 controller to a LAN?
If you are only connecting a single Cisco Catalyst 9800 controller to the wired LAN, such as for an N+1 controller deployment, connect the single controller physical ports spread across redundant Cisco Catalyst switches in a Cisco StackWise Virtual pair, switch stack, or separate line cards in a highly redundant modular chassis.
What are the key interfaces of interest in WLC?
Figure 5-13 shows an example of the interface configuration summary on school WLC. The key interfaces of interest are ap-manger, manager, and wlan data1, wlan data2, and wlan voice1 interface s.
What is a Cisco wireless network?
The Cisco Unified Wireless Network (CUWN) is a unified wired and wireless network solution that addresses the wireless network security, deployment, management, and control aspects of deploying a wireless network. It combines the best elements of wireless and wired networking to deliver secure, scalable wireless networks with a low total cost of ownership.
What is the role of WLCs?
Part of a WLCs role is to manage the RF network in its area, and to provide mobility services to WLCs in its network. To define the area of the RF network that you are interested in managing, use an RF group name; to define the mobility services domain, use a mobility group. The details of RF groups and mobility groups are beyond the scope of this design guide, but the key point for the design is that the RF network area and the mobility services domain will typically be a single school campus, and only WLCs that are at the same school should have the same RF group name or mobility group name. Figure 5-15 shows an example of the RF and mobility group configuration on the controllers. Each school campus can be given a different RF group and mobility group as the WLCs are different schools and are not expected to be in the same RF group or mobility group.
What is CUWN network?
The CUWN network is composed of two key elem ents: Wireless LAN Controllers (WLCs) and Access Points (APs). These form the core of the Wireless LAN system, where the APs provide the radio connection between wireless clients and the network, and the WLCs provide network. Figure 5-2 illustrates one of the primary features of the architecture: how Lightweight Access Point Protocol (LWAPP) or Control and Provisioning of Wireless Access Points (CAPWAP) access points (LAPs) use the LWAPP/CAPWAP protocol to communicate with and tunnel traffic to a WLC.
Is a dual band access point better than a single band AP?
If your goal is to simply provide WLAN coverage without trying to optimize capacity and performance then a single band AP is an appropriate choice, but in most cases a dual band Access Point is a better long term choice.
What are the advantages of a stand alone VPN?
How healthy the budget is might determine that. One of the advantages of purchasing a stand alone specialty VPN appliances is that ' typically ' they might have more flexibility when it comes to user policy and security settings. Some appliances also might have more robust client applications.
Is remote access part of a business continuity plan?
In general remote access should be a part of a business continuity plan. That alone could be the reason you justify deployment, which would mean you'd need to ensure there is some language about remote access and how the design works to meet the BC plan needs.
What is remote access plan?
A remote-access plan is a key part of an organization’s digital transformation. It sounds obvious, but prior to the pandemic, 80 percent of companies did not have a remote access plan in place. It’s been a year of playing catch up, but now that many companies are coming out of crisis mode, they are looking at the future ...
Why create a hybrid environment?
It’s a better user experience and it provides you with the flexibility to future-proof your environment when you want to make changes without disrupting the user experience. Most firms still don't have a secure remote access solution in place.
Is remote access necessary?
Remote access isn’t just necessary for productivity ; it’s a strategic decision as well. With a robust remote access plan in place, you can recruit or bring on talent from anywhere in the world. You’ve heard the stories of workers moving out of commuting distance during the pandemic.
Do remote users need MFA?
While you might decide to allow users on the network to log in with single-layer authentication, remote users should need to pass through MFA almost universally. If you have a preferred MFA provider, be sure to design it into your remote access solution. And if you do not, it’s time to think about getting one.
Is MFA part of remote access?
But resources exposed for remote access absolutely must be locked up securely, and MFA should be part of your remote access plan.
How to connect to a remote desktop?
1. Start the Viewer app and click Add connection: 2. Enter a descriptive name and the IP address of the Host PC. Click OK: 3. Enter Host access password in the password prompt and click OK: 4. The remote session will start in the selected connection mode .
What is remote utilities?
Remote Utilities allows you to back up and encrypt your address books stored locally. Related links: Address book.
What port is the host allowed to use?
Make sure the Host PC is allowed to accept connections at TCP port 5650 (default value). An exception is added to your Windows Firewall automatically when you install the Host. If you changed the Host port to a different value or if you use a different firewall software, you need to add an exception manually. Learn more about Remote Utilities ports.
What is direct connection?
A direct connection is possible when the Host is in direct visibility to the Viewer, i.e. the Host can be addressed by its IP address or hostname (DNS name). This connection type does not require any intermediary (relay) servers in-between Viewer and Host and is by definition the fastest way to access a remote Host.
What is an address book?
An address book is a place where you can keep and organize your remote connections. Each connection represents a specific remote computer. Connections have properties such as the destination address, access password (if saved), color depth and so on.
How to find the IP address of a host?
Determine the private (local) IP address of the Host computer. An easy way to do this is to hover your mouse pointer over the Host icon. The tooltip will show your local IP address. In our example it's 192.168.0.35.
Can a viewer and host be on the same LAN?
If the Viewer and Host are on the same LAN or VPN, establishing a direct connection is possible. In this case no intermediary web server is used.
How do organizations secure remote access?
With virtual desktops, end users access systems by using their device as a remote controller of sorts. With virtual desktops, users see a reflection of what they are accessing, but all information actually lives on another device. This way, you can access what you need without hosting it on the local device and sending data over unsecured connections.
Why should user devices be provisioned with secure connections?
User devices should be provisioned with secure connections to protect company data . Cybersecurity is still a primary concern, regardless of where your workforce resides. Companies with multiple offices frequently use dedicated circuits to connect branch offices to a central location.
What is thin client?
Similar to virtual desktops, thin clients are devices that securely access resources that are stored in your environment. Because the resources and data are stored on your systems, you can limit access and ensure that data is not being shared outside of your organization.
Why is it important to know how to design a LAN?
Why is this so important? If someone knows how to design something, it means that person knows and understands the components that comprise the object. By knowing how to design a LAN, a network professional knows the network components and how those components interact with one another. The professional would also know what products to buy to expand the network.
Why are access layer switches important?
Building intelligence into access layer switches allows applications to operate on the network more efficiently and securely.
What is Cisco Borderless Network?
The Cisco Borderless Network is a network architecture that combines several innovations and design considerations to allow organizations to connect anyone, anywhere, anytime, and on any device securely, reliably, and seamlessly.
What is converged network?
The words converged network can mean several things to a network engineer: (1) a single network designed to handle voice, video, and data; (2) an internal network where the Layer 3 devices, such as routers, have a complete routing table to be able to accurately and efficiently send data to a remote destination; and (3) a switch network that has completed calculations that result in a single path through the switch network. In this chapter, we explore the first description.
What are the three critical layers of a network?
The three critical layers within these tiered designs are the access, distribution, and core layers. Each layer can be seen as a well-defined, structured module with specific roles and functions in the campus network. Introducing modularity into the campus hierarchical design further ensures that the campus network remains resilient and flexible enough to provide critical network services. Modularity also helps to allow for growth and changes that occur over time.
What is resiliency in network?
Resiliency: Satisfies user expectations for keeping the network always on
How many layers of distribution access are there?
There are three layers of distribution access:
