Pat Erley schrieb:
On 03/30/10 12:31, John Clark wrote:
What is the reason for this limit? Is it because of a hardware issue, or
certain chip sets don't support more, or
just from an earlier time?
John Clark.
I believe (this is from a vague memory of a chat a while back) that it's due
to beacon intervals... once you exceed 4 SSIDs in 1 device, it's nearly
impossible to beacon reliably on all 4 with traffic. So it's mostly a QOS
issue/sanity issue. If you're really interested in understanding it, I
suggest the o'rielly wireless networks book[1]. After reading it twice,
I have a much better understanding of how it all works. Worth every penny.
Just getting back to this question. I'll have to dig that book up. I
bought it some time ago, but haven't
been involved with 802.11 much in the last couple of years.
However, if it is a 'beacon interval' issue... then one wonders how that
is handled by 'commercial' entities
that claim to be able to support 8 or 16 SSID's???
Since the box I'm using is Atheros based, and the manufacturer uses the
Atheros SDK, and makes a
claim for supporting 8... one wonders???
If it's a matter of lazy fair, let the user beware, and allow more than
4, with the knowledge that through
put can be impacted, the for the sake of specsmanship, I'd allow the
capability... I realize some people
don't like that sort of marketeering approach... that that's the way the
world seems to go.
John Clark.
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