Table of contents
A generation of smart solutions
The second generation smart solution
Three generations of smart solutions
Configure the wireless signal of the micro AP
Adjusting the Radio Parameters of a Micro AP
Dormitory scene features: small rooms, few users in a single room, dense rooms, and thick walls between rooms
Problems with traditional APs
Install AP deployment
Deployed in the room: high cost and waste of resources
Deployed in the corridor: dense deployment is required, and the interference is large; due to the barrier of the wall, the received signal is weak
Wall AP Deployment
There is one wall AP in each room, and one wall AP occupies 0.5 license. The license authorization cost of AC is high.
Each AP occupies a switch port, and the deployment cost of accessing a PoE switch is also high.
Indoor AP Deployment
Use an AP to connect the antenna to the room through a power splitter, a coupler, and a feeder
There are many devices involved, the installation is complicated, and the maintenance cost is high
Intelligent solution
A generation of smart solutions
AP220-E/AP220-E(M) only supports 802.11n + feeder + antenna
AP can achieve 1 point 6, connect 6 antennas through 6 feeder ports, and access to different rooms
advantage
1. 1 AP can cover 6 rooms, only occupying 1 License
2. The AP is in the corridor and connected to the room through the antenna; there is no need to enter each room when troubleshooting
shortcoming
1. Only supports 1-6 single-frequency single-stream (2.4Ghz), 1-6 is still too small compared to the dormitory scene and the bandwidth is small
2. When the device signal cannot be connected, it is not clear whether it is an AP problem or a feeder or antenna problem (there is no corresponding detection mechanism)
The second generation smart solution
AP220-E(M)-V2 only supports 802.11n + feeder + antenna
features
1. AP220-E(M)-V2 has 8 feeder ports, which can realize 1-4 dual-frequency dual-stream, 1-6 dual-frequency single-stream, 1-8 single-frequency single-stream (dual-stream and single-stream can be realized through line connection , through software configuration to achieve dual-frequency or single-frequency)
2. Added the antenna and feeder detection function, which can detect whether there is a problem with the antenna or feeder
How to achieve single frequency through configuration (the default transceiver mode of the RF card is 011, the decimal is 2, which means sending and receiving data to both antenna 0 and antenna 1)
We can change the transceiver mode of Radio1 to 001, indicating that only 1 antenna is used (use antenna 0)
We also changed Radio2 to 001 to use 1 antenna (use antenna 0)
At this time, the data can only achieve single frequency (some are single frequency 2.4Ghz, and some are single frequency 5Ghz)
Dual stream and single stream connections
There is a problem
The bandwidth of the provided antenna is not enough (1:8, the total bandwidth of the 8 antennas must not exceed the bandwidth of the radio card of the AP)
Three generations of smart solutions
AP5280 + Feeder + Antenna
The main improvement is to build the radio frequency card into the antenna (in the past, multiple antennas used 1/multiple radio frequency cards together)
Each antenna is a 2.4+5Ghz radio frequency card, and 5g also supports 802.11ac, which greatly improves the bandwidth
AP5280 supports 1 to 8, can connect 8 antennas, and each of the 8 antennas has 2 independent radio cards
Wisdom+Solution
AP host (AP products such as AM5528) + gigabit network cable + micro AP
The previous solutions used feeder cables with a maximum length of no more than 15m; Zhifen+ used Gigabit network cables with a maximum length of 100m
The AP host can be connected to multiple micro-APs through network cables and deployed in multiple rooms (1~24 ports of AM5528 are connected to micro-APs, and 25 and 26 ports are connected to uplink)
Technical principle
AM5528 adopts virtual Radio technology (abstracting the radio frequency card of the connected micro AP into the radio frequency card of the device), and externally reflects it as a device with multiple radio frequency cards
1 port of AM5528 is connected to a micro AP, and 2 radios are virtualized
For example, the 1 port of the AP host is virtualized as radio1 and radio2, corresponding to 2.4g and 5g respectively, and so on, and which radio is distinguished by superimposing one by one
Precautions
- The micro AP is powered by the AP host in a non-standard way, and other devices cannot be connected in series; therefore, the AP host cannot be connected to an ordinary mounted AP, nor can it supply power to other hosts; the micro AP cannot be connected to a POE switch.
- The AP host can only be a thin AP, which is controlled by the AC host
- It is recommended that the network cable not exceed 75m when the AP host is connected to the micro AP, and all of them are Gigabit
- The uplink switch of the AP host must be a gigabit switch
- One AP host occupies a fixed Lincense, which has nothing to do with the actual number of micro APs connected
tunnel establishment
The AP host establishes a tunnel, and the micro AP does not establish a tunnel (that is, the AC only manages the AP host)
AM5528 has two default Vlans:
1 vlan1, similar to the BVI 1 where the AP is installed, and establish a tunnel with the AC through this address
There is also an interface address of vlan 2444. This interface has an ip address enabled by default, and DHCP is enabled to assign an IP address to the micro AP. The micro AP uses this address to forward data.
Control data flow forwarding path
Configure the AM5528 on the AC to go online. When the AM5528 goes online, it will carry 48 radio IDs (equivalent to reporting the virtual Radio ID to the AC)
Configure these Radio IDs on the AC, and send the configuration to AM5528; AM5528 will identify which radio frequency card the configuration is related to, and then send the configuration to the corresponding micro AP
The micro AP and AM5528 communicate through the TIPC protocol, which does not require IP addresses at both ends, and is identified by the service type
data flow forwarding path
Centralized forwarding (CAPWAP encapsulation and decapsulation on the micro AP)
The data arrives at the micro-AP, and the micro-AP performs CAPWAP encapsulation. The source IP is the IP address of AM5528, and the destination IP is the IP address of AC; the source MAC is the MAC of the micro-AP, and the destination MAC is the MAC of AM5528.
AM5528 changes the MAC address after receiving it and then sends it up
After AC receives it, it replies to the AP host (carrying radio id)
After receiving it, AM5528 matches the specified bytes in the first 80 bytes of the message according to the bits through ACL80 (ACL 80 is configured on AM5528 by default), and redirects it to the micro AP through radio
After receiving it, the micro AP forwards it to the corresponding user
local forwarding
After the micro AP receives the data, it converts it into an 802.3 wired frame and forwards it directly to the AP host
After the AP host receives it, it forwards it directly
Wisdom + scheme configuration
The configuration is the same as that of a normal square-mounted AP, you only need to see it as multiple radios of an AP.
Configure basic information
Go online to AM5228 before configuration
ap-config AM5528
ap-mac 0000-0001-0001 Bind the MAC address of AP5228
ap-group default bind user group
Configure the name of the micro AP
The difference from common APs is that common APs are configured through ap-name under ap-config; micro APs are configured and named through solt under ap-config of the AP host
ap-config AM5528
slot 3 AP3 Configure the name of the micro AP connected to the third slot as AP3
Configure the Vlan where the micro AP port resides (configure it as a service Vlan)
ap-config AM5528
wired-vlan 10 slot 2 port 1 The vlan of port 1 of the micro AP connected to port 2 of the AP host is 10
wired-vlan 10 port 1 The port 1 vlan of all micro APs connected to all ports of the AP host is 10
wired-vlan 10 All micro-APs connected to all ports of the AP host, all ports on the micro-AP have vlan 10
Configure to install and update the micro AP
ap-config AM5528
install update 3 Update the installation status of the 3-port micro AP
uninstall 3 Remove the micro AP installation information of port 3
reset slot 3 Restart the third slot of AM5228
Configure the wireless signal of the micro AP
All micro APs deploying the entire AP host release the same signal
wlan-config 1 AP Configure wlan-id as 1, SSID as AP
ap-group 123
interface-mapping 1 10 bind WLAN-ID 1 to vlan 10, and bind all radios
Different micro APs deploying AP hosts release different signals
wlan-config 1 Slot1 Configure wlan-id as 1 and SSID as Slot1
wlan-config 2 Slot2 Configure wlan-id as 2 and SSID as Slot2
ap-group default
interface-mapping 1 10 radio 1 Bind WLAN-ID 1 to vlan 10, and bind radio 1 and radio 2 (corresponding to the micro AP connected to port 1)
interface-mapping 1 10 radio 2
interface-mapping 2 10 radio 3 Bind WLAN-ID 2 to vlan 10, and bind radio 3 and radio 4 (corresponding to the micro AP connected by 2 ports)
interface-mapping 2 10 radio 4
The 2.4G and 5G release different signals of all micro APs deployed with the AP host
wlan-config 1 AP-5g
wlan-config 2 AP-2.4g
ap-group default
interface-mapping 1 10 radio 802.11n bind 802.11n 2.4g signal with Wlan-id 1
interface-mapping 2 10 radio 802.11n bind 802.11n 5g signal with Wlan-id 2
Adjusting the Radio Parameters of a Micro AP
ap-config AM5228
Chanel 6 radio 5 Configure the micro AP 2.4g connected to the AP main key 3 port as channel 6, and 5g as channel 149
chanel 149 radio 6
power local 30 radio 802.11b Configure the 802.11b power of all micro APs to be 30%
power local 30 radio 802.11a Configure the 802.11a power of all micro APs to be 30%