User's Manual

Altai A8n (ac) Series Super WiFi Base Station

Configuration Guide

for the corresponding CTS from the target client. Upon reception of

the CTS, the AP then sends the data frame. There are trade-offs

when considering what value you should set for the RTS/CTS

threshold. Smaller values will cause RTS to be sent more often,

increasing overheads. However, the more often RTS packets are

sent, the sooner the system can recover from collisions. It is

recommended to use the default value or only minor reductions of

the default setting.

4. Click Submit

5. Click Save & Apply

Change distance setting on A8n (ac)

Distance setting is the estimated distance of target area (round to the

nearest km); A8n (ac) adjusts the round-trip time latency according to

this setting.

1. 2.4G Interface: Go to Configuration > Wireless > Radio0 > Advanced

> Advanced Settings

5G Interface: Go to Configuration > Wireless > Radio1 > Advanced >

Advanced Settings

2. Type in the estimate distance of target area between 1 and 50 km

in Distance; 2 km is default setting.

3. Click Submit

4. Click Save & Apply

Enable IGMP Snooping

AP is a Layer 2 device when it is configured as Switch mode. However,

IGMP Snooping implementation on AP is a little bit different than that of

standard Layer 2 Switch.

Each Virtual AP (WLAN) port is similar to a Layer 2 switch port. With

IGMP Snooping enabled in the AP, clients associated to a VAP will only

receive multicast packets if there is at least one client joined the

multicast group in that VAP. Unlike ordinary IGMP Snooping

implementation, where Layer 2 switch converts multicast to unicast

and delivers them to devices registered with the multicast group, AP

should simply send out the multicast packets from the VAP which has at

least one client joined the multicast group. This is done because the

wireless media is a broadcast media. It does not need to be sent

multiple times when there are more than one registered clients.

When IGMP Snooping is turned on, multicast packets should be

dropped at the VAP exit if there is no client from the VAP who has

joined the corresponding multicast group.

The IGMP snooping forwarding table (port and multicast MAC address

mapping table) should support aging mechanism to age out the entry

which has no multicast traffic for a period of time.

1. 2.4G Interface: Go to Configuration > Wireless > Radio0 > Advanced

> Advanced Settings