Environment : This article applies to all Aruba controllers and ArubaOS versions.
Effective Isotropic Radiated Power (EIRP) - Is the amount of power that a theoretical isotropic antenna (which evenly distributes power in all directions) would emit to produce the peak power density observed in the direction of maximum antenna gain . EIRP can take into account the losses in transmission line and connectors and includes the gain of the antenna.
The EIRP is often stated in terms of decibels over a reference power emitted by an isotropic radiator with equivalent signal strength. The EIRP allows comparisons between different emitters regardless of type, size or form. From the EIRP, and with knowledge of a real antenna's gain, it is possible to calculate real power and field strength values. Formula to calculate===================
EIRP = Tx RF Power (dBm)+GA (dB) - FL (dB)
Explanation========== Tx RF Power :RF power measured at RF connector of the unit GA :Antenna gain FL : Feeder loss(cable loss or any other loss)
show ap bss-table (This command will show the EIRP value for the Ap) fm (forward mode): T-Tunnel, S-Split, D-Decrypt Tunnel, B-Bridge (s-standard, p-persistent, b-backup, a-always) Aruba AP BSS Table------------------bss ess s/p ip phy type ch/EIRP/max-EIRP cur-cl ap name in-t(s) tot-t mtu acl-state acl fm--- --- --- -- --- ---- ---------------- ------ ------- ------- ----- --- --------- --- --d8:c7:c8:3c:f7:51 babson 0/10 172.16.100.44 a-HT ap 48-/16/16 0 b-yukon-3 0 35m:58s 1500 - 1 Td8:c7:c8:3c:cb:62 roam1 0/10 172.16.100.74 g-HT ap 1/20/20 0 c-434 0 38m:57s 1500 - 47 Td8:c7:c8:3c:b5:31 babson 0/10 172.16.100.62 a-HT ap 157+/20.5/20.5 0 c-s122 0 45m:18s
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