Webinar NETGEAR - Il nuovo WC7500 e le soluzioni appliance Prosafe per la gestione wireless

Editor's Notes

1. This presentation accompanies the 29th June 15 launch by NETGEAR of Business Central, the company’s first secure, cloud-based IT service platform. Business Central is designed to provide small to mid-sized organizations with an affordable way to establish, provision and manage key IT networking services and network devices. The first service module to debut under the Business Central umbrella is the new Business Central Wireless Manager (http://wireless.netgear.com), which enables companies as well as Value-Added Resellers (VARs) and other Systems Integrators (SIs) to centrally manage an entire wireless network across multiple borders, cities, buildings and floors, anytime and anywhere, securely through the cloud.
2. The NETGEAR ProSafe 20-AP Wireless Controller WC7520 offers a high-performance and fully-featured Wireless LAN architecture to meet the demands of medium-sized schools, colleges and universities with thousands of users. Focusing on ease-of-use, the WC7520 Controller simplifies Wireless deployments and network management with best-in-class Wireless reliability, coverage, and performance. The scalable WC7520 Controller enables education entities to grow their wireless network as needed with a dramatic return on investment: WC7520 scales up to 50 access points (AP) - and up to 150 access points (AP) with stacking for larger deployments including controller redundancy. If you do not require redundancy or roaming, and scalability is not a key requirement then consider our WMS5316 Management Solution.
3. This section will provide an overview of Business Central and Wireless Manager and distinguish between the two for clarity.
4. The NETGEAR ProSafe 20-AP Wireless Controller WC7520 offers a high-performance and fully-featured Wireless LAN architecture to meet the demands of medium-sized schools, colleges and universities with thousands of users. Focusing on ease-of-use, the WC7520 Controller simplifies Wireless deployments and network management with best-in-class Wireless reliability, coverage, and performance. The scalable WC7520 Controller enables education entities to grow their wireless network as needed with a dramatic return on investment: WC7520 scales up to 50 access points (AP) - and up to 150 access points (AP) with stacking for larger deployments including controller redundancy. If you do not require redundancy or roaming, and scalability is not a key requirement then consider our WMS5316 Management Solution.
5. Looking briefly at the WC7520, this solutoin is suited to those who require simple, basic managed wireless connectivity. As such, customers will be unlikely to need or want a rich feature set, so future 11ac upgrade requirements are not as important as providing a centralised managed network. The WC7520 price points will also now appeal to more price sensitive customers who up until now have not considered a managed network, but continued to use standalone Access Points. Primary schools, museums and assisted living centres are good examples of vertical customer types that will find the WC7520 appealing.
6. The NETGEAR ProSafe WC7600 offers a high-performance and fully-featured Wireless LAN architecture to meet the demands of medium-sized schools, colleges and universities with thousands of users. Focusing on ease-of-use, the WC7600 Controller simplifies Wireless deployments and network management with best-in-class Wireless reliability, coverage, and performance. WC7600 scales up to 50 access points (AP) - and up to 150 access points (AP) with stacking for larger deployments including controller redundancy. It is also ac ready for future and evolving network needs.
7. The NETGEAR ProSafe WC9500 offers a high-performance and fully-featured Wireless LAN architecture to meet the demands of medium-sized schools, colleges and universities with thousands of users. Focusing on ease-of-use, the WC9500 Controller simplifies Wireless deployments and network management with best-in-class Wireless reliability, coverage, and performance. WC9500 scales up to 200 access points (AP) - and up to 600 access points (AP) with stacking for larger deployments including controller redundancy. It is also ac ready for future and evolving network needs.
8. This slide highlights the customer characteristics where the WC7600 represents the best fit. From video streaming, through to premium WNDAP620 and WNDAP660 management, the WC7600 is a fully featured enterprise grade platform that scale and support up to 6000 clients in a clustered arrangement. It is also suited to those customers with a high concentration of wireless users and where wireless traffic if expected to be heavy.
9. NETGEAR’s extensive range of Access Points start from SoHo designed standalone units that offer simple installation and are ideal for use where coverage is key, but centralised management is not required. Stepping up the range, a choice of performance based AP’s include latest generation 11n solutions including single and dual band support options – all controller managed or standalone as required. For premium performance, our high end 11n AP’s provide 3 x 3 MIMO – the best you can get for range and throughput performance with speeds up to Gig that match wired networks.
10. This section will provide an overview of Business Central and Wireless Manager and distinguish between the two for clarity.
11. Better scalability versus centralized forwarding architecture Cisco, Meru, Aruba
12. When a wireless client sends out the ARP over the air (for example, wireless client sends out ARP to find out the MAC of a particular IP address), this broadcast packet reaches the controller and the controller sends out this ARP to all of the AP’s in the network. In the WC7520 implementation, every AP’s in the managed list will forward this ARP over the air. This broadcast is send out at the lowest PHY rate, therefore, taking up precious airtime. In the WC7600, the ARP suppression setting is on by default, and when a wireless client sends out the ARP packet and reaches the controller, the controller send out the ARP request to all of the AP’s via the wired interface. When the AP’s receives the ARP broadcast packet, only the AP’s that have the client in his range sends out the ARP request to the connected client. The benefit is a drastic reduction of unnecessary broadcast traffic over the air, therefore, increasing the air time for legitimate data traffic
13. The next recommendation is to utilize the load balancing functionality of the controller to effectively utilize the over the air resource to ensure that we load balance the traffic to all of the AP’s that can be seen by the clients at indicated from the previous chart. Based on our internal testing, we recommend to set the number of maximum clients to 25 as the right level of threshold. This will ensure that no more than 25 high throughput clients get access to this AP and setting the minimum RSSI threshold to -73 dBm (or 40) will ensure that only ‘good’ clients gets on the reception of a particular AP.
14. example of network configuration in which AP1 has access to VLAN “20” and a wireless client connects on VLAN “20”, when the same client roam’s to AP2 which has only access to VLAN “10” for the same SSID, in such scenario, the AP-2 tunnels this client traffic to AP1 and locally forwards the traffic from AP-1 to VLAN “20” switch while retaining connectivity with a server in the VLAN “20” wired network. L3 roam implementation in WC9500/WC7600 supports distributed roaming model using dynamically created AP-to-AP GRE tunnels. When a client connects to an AP for first time, this AP is assumed to be home AP for the client and profile VLAN is assigned to client. After this when this client roams to new AP which is broadcasting same SSID with different VLAN, Client is marked as L3 roamed client and if both the APs are directly reachable we tunnel back all outbound data from the client from new AP to home AP and any data towards client always comes to home AP first and then gets tunneled to new AP. If the APs are not directly reachable, client data is tunneled to home AP through APController GRE tunnel. This tunnel is established as soon as AP connects to controller and remains there till AP is managed by the controller.