Cisco Cisco Aironet 3700i Access Point 白皮書
Copyright © 2013 Miercom Cisco Aironet 3702i Access Point
Page 5
In terms of functionality of the AP, there was no
change for the AP3702i. Using an 802.3af power
supply that provides up to 15.4 watts, it continued
to transmit three spatial streams by backing down
from 4x4 to 3x3 operation on both 2.4 GHz and
5 GHz. However, the functionality of the Aruba
AP-225 dropped to only one spatial stream on the
2.4 GHz radio.
change for the AP3702i. Using an 802.3af power
supply that provides up to 15.4 watts, it continued
to transmit three spatial streams by backing down
from 4x4 to 3x3 operation on both 2.4 GHz and
5 GHz. However, the functionality of the Aruba
AP-225 dropped to only one spatial stream on the
2.4 GHz radio.
Bottom Line
The Cisco Aironet 3702i is part of the Cisco
Aironet 3700 Series, the first from Cisco with built-
in 802.11ac functionality. It proved that it can add
significant value to a real-world WLAN now and will
continue to do so after the gigabit Wi-Fi standard is
finalized in early 2014.
Aironet 3700 Series, the first from Cisco with built-
in 802.11ac functionality. It proved that it can add
significant value to a real-world WLAN now and will
continue to do so after the gigabit Wi-Fi standard is
finalized in early 2014.
During rate at range tests, the AP3702i delivered a
high level of 802.11ac throughput, beginning with
10 feet Line of Sight and ending with 150 LOS and
Non-LOS. It maintained a high level of 802.11ac
throughput in two series of tests that simulated
real-world factors that can negatively impact
throughput: a high-density environment and RF
interference from a nearby access point.
high level of 802.11ac throughput, beginning with
10 feet Line of Sight and ending with 150 LOS and
Non-LOS. It maintained a high level of 802.11ac
throughput in two series of tests that simulated
real-world factors that can negatively impact
throughput: a high-density environment and RF
interference from a nearby access point.
While operating on reduced power, the AP3702i
proved that it can retain full functionality while
operating in each 802.11n mode, 2.4 GHz and
5 GHz.
proved that it can retain full functionality while
operating in each 802.11n mode, 2.4 GHz and
5 GHz.
Source: Miercom, November 2013
The AP3702i outperformed the Aruba AP-225 in
both scenarios as shown in
both scenarios as shown in
Figure 6
on
page 4
.
The advantage for the AP3702i was 4.8% without
802.11n 5 GHz interference (544 Mbps versus
519 Mbps). The gap increased to 87.7% (428
Mbps versus 228 Mbps) with interference.
802.11n 5 GHz interference (544 Mbps versus
519 Mbps). The gap increased to 87.7% (428
Mbps versus 228 Mbps) with interference.
In the AP3702i, noise suppression works
automatically. The RX Sensitivity Tuning-Based
Channel Reuse Feature in the Aruba AP-225
must be manually set. The AP-225 was tested
with the RX feature at various settings, without
any improvement in throughput.
automatically. The RX Sensitivity Tuning-Based
Channel Reuse Feature in the Aruba AP-225
must be manually set. The AP-225 was tested
with the RX feature at various settings, without
any improvement in throughput.
Performance on Reduced Power
This test assessed the throughput and
functionality of each AP while operating with
regular and reduced power.
functionality of each AP while operating with
regular and reduced power.
Both access points transmitted 802.11n 2.4 GHz
and 802.11 5 GHz signal. The clients, two Dell
Latitude E6430 laptops, faced the access point,
10 feet LOS.
and 802.11 5 GHz signal. The clients, two Dell
Latitude E6430 laptops, faced the access point,
10 feet LOS.
Two power supplies were used, the conventional
802.3at (PoE+) and reduced power 802.3af
(PoE).
802.3at (PoE+) and reduced power 802.3af
(PoE).
A drop in throughput was experienced by the
Aruba AP-225 at 2.4 GHz, 148 Mbps for 802.3at
to 55 for 802.3af, 169%.
Aruba AP-225 at 2.4 GHz, 148 Mbps for 802.3at
to 55 for 802.3af, 169%.
The Cisco AP3702i did not
experience a drop in
throughput at either
802.11n 2.4 GHz or 5 GHz
when dropping from
conventional 802.3at
(PoE+) power supply to a
reduced power 802.3af
(PoE). The Aruba AP-225
experienced a drop of
169% at 2.4 GHz.
PoE+
Cisco Aironet
3702i
PoE
Cisco Aironet
3702i
PoE+
Aruba AP‐225
PoE
Aruba AP‐225
2.4GHz
154
150
148
55
5GHz
293
286
283
279
0
90
180
270
360
450
Th
ro
ug
hp
ut
(
M
bps
)
Figure 7: 802.11n 2.4 GHz and 5 GHz Throughput, PoE+ vs PoE