How do I MBR thee, Let me count the ways… Troy Martin @troymart #WLPC
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How do I MBR thee,Let me count the ways…
Troy Martin
@troymart#WLPC
10 Minute Agenda
• Slogans
• Showcase the beacon frame
• Remind every one about “The Calculator” tool
• Bits in the air
• Minimum Basic Rate (MBR) Suggestions
“Carrots are good for your eyes….”
“Carrots have a high glycemic index…”
“Disable lower data rates...”
Beacon Frame
Figure 4-5: Beacon frame structure, CWAP Study Guide
@revolutionwifi @radzima
0
5
10
15
20
25
150 200 250 300 350 400
2 x APs HEARD on the SAME channel (CCI) – 3 SSIDs
802.11b-1M 802.11b-11M 802.11g-6M 802.11g-12M 802.11g-24M 802.11a-6M 802.11a-12M 802.11a-24M
0
5
10
15
20
25
30
35
150 200 250 300 350 400
3 x APs HEARD on the SAME channel (CCI) – 3 SSIDs
802.11b-1M 802.11b-11M 802.11g-6M 802.11g-12M 802.11g-24M 802.11a-6M 802.11a-12M 802.11a-24M
0
5
10
15
20
25
30
35
40
45
150 200 250 300 350 400
4 x APs HEARD on the SAME channel (CCI) – 3 SSIDs
802.11b-1M 802.11-11b 802.11g-6M 802.11g-12M 802.11g-24M 802.11a-6M 802.11a-12M 802.11a-24M
Grey coverage is -87dBm to -91dBm
…..Also the difference between 24Mbps and 6Mbps data rate
0
500
1000
1500
2000
2500
3000
3500
150 200 250 300 350 400
Beacon Airtime (µs) Consumtion at various Frame Sizes (Bytes)
802.11b-1M 802.11b-11M 802.11g-6M 802.11g-12M 802.11g-24M 802.11a-6M 802.11a-12M 802.11a-24M
What can we do to save airtime?
• Stop advertising • AP hostname• 11ax data rates / capabilities
• Disable QoS
• Disable RSN
• Disable OWE
• Reducing customized Information Elements (IE)
Leave the Data Rates alone, REDUCE Co-Channel Interference….42
Data Rates at Play
802.11b12
5.511
802.11g69
121824364854
802.11a69
121824364854
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How Do I Love Thee?
How do I love thee? Let me count the ways.
I love thee to the depth and breadth and height
My soul can reach, when feeling out of sight
For the ends of being and ideal grace.
I love thee to the level of every day’s
Most quiet need, by sun and candle-light.
I love thee freely, as men strive for right.
I love thee purely, as they turn from praise.
I love thee with the passion put to use
In my old griefs, and with my childhood’s faith.
I love thee with a love I seemed to lose
With my lost saints. I love thee with the breath,
Smiles, tears, of all my life; and, if God choose,
I shall but love thee better after death.
By Elizabeth Barrett Browning
66
❤️
CCI
The End
@troymart#WLPC
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