Easiest way to split users into separate classes?

[Christ Schlacta]

forgive me if I'm mistaken, but this scheme can only scale to powers of 
2.  that can be a potential inhibition to future expansion..  you have 
to scale from 2 to 4 servers, then to 8, then to 16...

On 2/22/2011 10:55, Jon Chesnut wrote:
> Apologies for the new thread - I forgot to change my subscription type from digest to individual before posting, so I'm unable to reply properly.
>
>
>> From: Bruce Hudson
>> Sent: Tuesday, February 22, 2011 11:08 AM
>> Subject: Re: Easiest way to split users into separate classes?
>>
>>     I do not have a server I can play with at the moment so this is a
>> completely untested suggestion. Mileage may vary.
>>
>>     class "public_wireless_a" {
>>         match suffix (binary-to-ascii (2, 8, ":", suffix (hardware,1)), 1);
>>     }
>>
>>     subclass "public_wireless_a" "0;
>>
>>
>>     class "public_wireless_b" {
>>         match suffix (binary-to-ascii (2, 8, ":", suffix (hardware,1)), 1);
>>     }
>>
>>     subclass "public_wireless_b" "1;
>>
>> I am not sure off-hand how to balance across three controllers. It would
>> depend on how closely you need to balance the load. The extension to four
>> is easy enough.
> Brilliant solution - thanks very much.  Working great.
>
> class "public_wireless_a" {match suffix (binary-to-ascii (2, 8, ":", suffix (hardware,1)), 1); }
>          subclass "public_wireless_a" "0";
>
> class "public_wireless_b" {match suffix (binary-to-ascii (2, 8, ":", suffix (hardware,1)), 1); }
>          subclass "public_wireless_b" "1";
>
>
>> Date: Tue, 22 Feb 2011 19:14:05 +0100
>> From: Peter Rathlev
>> Subject: Re: Easiest way to split users into separate classes?
>>
>>
>> How about matching the last bit of the hardware address instead? That
>> would leave you with only two classes to match:
>>
>> class "test_a" {
>>         match if substring(binary-to-ascii(2, 8, "", substring(hardware, 6, 1)), 1, 1) = "0";
>> }
>> class "test_b" {
>>         match if substring(binary-to-ascii(2, 8, "", substring(hardware, 6, 1)), 1, 1) = "1";
>> }
>>
>> Beware that I couldn't get this to work correctly using subclasses for
>> some reason, but the above seems to work fine.
>>
>> --
>> Peter
> Thanks!  Great minds apparently think alike.  :)
>
>
>> Date: Tue, 22 Feb 2011 12:33:16 -0600
>> From: Allie Hopkins
>> Subject: Re: Easiest way to split users into separate classes?
>>
>> While you can certainly do this via DHCP, why can't you do this via
>> the controllers?  We're a Cisco shop and the crew in charge of
>> wireless handle the distribution of the clients on the controllers,
>> not through us.
> The access controllers (pay gateways) don't support this type of feature.  While I could put a load balancer in front of them, doing basic load balancing across the 2 gateways through DHCP is doing the trick nicely.
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