Virtual Wireless LAN (vWLAN) by BlueSocket

vWLAN is virtual wireless lan technology is being developed by www.bluesoket.com and company is recently acquired by Adtran. The solution offering is basically based on the extension of roaming user to his home AP network. As per my understanding, every access point need to fill the details of each user location and access rights policies which is really cumbersome.

As per above diagram(captured from white paper), all the roles are configured on AP-2 for student and when the student roams from Ap-2 to AP-5, AP-5 sees that the student location is based out of AP-2, so AP-5 extends its tunnel to AP-2 and AP-2 allocated the ip address and all the access roles to user student.

If IP address allocation is the only concern, in that case home agent kind of device should be used which is actually responsible of allocating same ip address where ever you roam.

If I compare the solution with normal access points and controllers, it is bit weird; instead of doing the centralization they are opting distributed architecture consequences unnecessary use of bandwidth from one AP to another AP in case of roaming user.

Virtual Wireless LAN Whitepaper


Note:This is completely a personal view and has nothing to do with any person or company.
 




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Improving WAN Throughput With Forward Error Correction

Forward Error Correction aka as FEC but in cisco terminilogy it is forward equivalence class which is totally different. FEC is a technology which is well known to correct bit errors at the physical layer. But it is being adapted by network layer to improve the application performance across the wan link consequently wan link performance also increases. FEC mainly comes in picture where the statical multiplexing is used. When TCP senses the packet loss over the wan link, it actually reduces the amount of data transfer over the link. These type of problems actually back off the data transmission rate and companies never utilize the link properly. This all works according to the nagle's algorithm. To over these problems FEC is used to increase the performance and throughput of the wan link. FEC plays vital role in the wan acceleration.

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