ap设备的mac与bssid转换规则

[xin_yu_jeqze1ee]

X需要了解到 ap设备的mac与bssid转换规则

[john_d]

Perhaps Xin is referring to how Ruckus APs generate their BSSID MAC addresses from the base MAC address? Either way we could use more detail on why those values matter -- I can't imagine wanting to derive those without just asking the APs via SmartZone API or SNMP....

[brian_powers]

That logic is not overly complicated though.  

Assume APs base MAC Address - D8:38:FC:38:75:F0

2.4 GHz base MAC Address - D8:38:FC:38:75:F8

5 GHz base MAC Address - D8:38:FC:38:75:FC

Base MAC address would be used for mesh networks.

The 7th digit increases by 4 (in hex format) from the base MAC address.  Once all of the hex options are used there, the 12th digit increases by 1 and the 7th digit restarts in incrementing.  This is based off of their wlan0/1 base MAC address.  See below.

rkscli: get wlanlist

name          status   type   wlanID   radioID  bssid             ssid                            

--------------------------------------------------------------------------------------------------

wlan0         up       AP     wlan0    0        d8:38:fc:38:75:f8 SSID01                         

wlan1         up       AP     wlan1    0        d8:38:fc:78:75:f8 SSID02                         

wlan2         up       AP     wlan2    0        d8:38:fc:b8:75:f8 SSID03                         

wlan3         up       AP     wlan3    0        d8:38:fc:f8:75:f8 SSID04                         

wlan4         up       AP     wlan4    0        d8:38:fc:38:75:f9 SSID05                         

wlan5         up       AP     wlan5    0        d8:38:fc:78:75:f9 SSID06                         

wlan6         up       AP     wlan6    0        d8:38:fc:b8:75:f9 SSID07                         

wlan7         up       AP     wlan7    0        d8:38:fc:f8:75:f9 SSID08                         

wlan8         up       AP     wlan8    0        d8:38:fc:38:75:fa SSID09                         

wlan9         up       AP     wlan9    0        d8:38:fc:78:75:fa SSID10                         

wlan10        up       AP     wlan10   0        d8:38:fc:b8:75:fa SSID11                         

wlan11        up       AP     wlan11   0        d8:38:fc:f8:75:fa SSID12                          

wlan12        up       AP     wlan12   0        d8:38:fc:38:75:fb SSID13                         

wlan13        up       AP     wlan13   0        d8:38:fc:78:75:fb SSID14                         

wlan14        up       AP     wlan14   0        d8:38:fc:b8:75:fb SSID15                         

recovery-ssid down     AP     wlan102  0        00:00:00:00:00:00 Recover.Me-3875F0              

wlan32        up       AP     wlan32   1        d8:38:fc:38:75:fc SSID01                         

wlan33        up       AP     wlan33   1        d8:38:fc:78:75:fc SSID02                         

wlan34        up       AP     wlan34   1        d8:38:fc:b8:75:fc SSID03                         

wlan35        up       AP     wlan35   1        d8:38:fc:f8:75:fc SSID04                         

wlan36        up       AP     wlan36   1        d8:38:fc:38:75:fd SSID05                         

wlan37        up       AP     wlan37   1        d8:38:fc:78:75:fd SSID06                         

wlan38        up       AP     wlan38   1        d8:38:fc:b8:75:fd SSID07                         

wlan39        up       AP     wlan39   1        d8:38:fc:f8:75:fd SSID08                         

wlan40        up       AP     wlan40   1        d8:38:fc:38:75:fe SSID09                         

wlan41        up       AP     wlan41   1        d8:38:fc:78:75:fe SSID10                         

wlan42        up       AP     wlan42   1        d8:38:fc:b8:75:fe SSID11                          

wlan43        up       AP     wlan43   1        d8:38:fc:f8:75:fe SSID12                         

wlan44        up       AP     wlan44   1        d8:38:fc:38:75:ff SSID13                         

wlan45        up       AP     wlan45   1        d8:38:fc:78:75:ff SSID14                         

wlan46        up       AP     wlan46   1        d8:38:fc:b8:75:ff SSID15                         

wlan47        up       AP     wlan47   1        d8:38:fc:f8:75:ff SSID16     

The interesting note here is that the 2.4 GHz radio gets wlans 0-14 and the 5 GHz radio gets wlans 32-47.  Doing the math there, the 2.4 GHz radio is limited to 15 SSIDs while the 5 GHz radio can actually accept 16.  This looks to be because of the recovery-ssid shown above assumed to be 2.4 GHz only.

Note some AP models only support up to 16 BSSIDs, so it'd be the 1st 8 per frequency. 


We had to figure out all of this so we could write some python scripts to rename APs within an Ekahau file automatically vs. manually.

[xin_yu_jeqze1ee]

Thank you very much for your answer. You have helped me a lot and the customer's problem has been solved.

[michael_brado]

Thanks John, that flipped a switch, and yes Brian thanks.

We have KBA-4495: BSSID to AP MAC Address translation

https://support.ruckuswireless.com/articles/000004495

[xin_yu_jeqze1ee]

hi, Michael Brado,
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