Symptom
1. The signal strength is too weak to allow the STA to associate with the AP.
2. Signals are normal but services are not running properly.
please help confirm what type of issue you are facing? I think you'd better create a ticket for this issue.
Check whether the vap profile and the wired interface of the AP are correctly configured.
If the AP's wired interface is directly connected to the network device or works in back-to-back relay mode, the configurations of the wired interface must be correct so that service traffic can be forwarded correctly.
For example:
[AC6605]int GigabitEthernet 0/0/3
[AC6605-GigabitEthernet0/0/3]display this
#
interface GigabitEthernet0/0/3
port link-type trunk
port trunk pvid vlan 149
port trunk allow-pass vlan 149 to 150
am isolate GigabitEthernet0/0/1
#
return
[AC6605-wlan-view]vap-profile name ap6010
[AC6605-wlan-vap-prof-ap6010]display this
#
forward-mode tunnel
service-vlan vlan-id 150
ssid-profile ap6010
security-profile ap6010
#
return
Check whether an interface is created on the intermediate network or AC and added to the corresponding VLAN.
The Huawei network device allows data from a VLAN only when the VLAN has been created on the local device and corresponding interfaces are correctly configured (tagged or untagged mode). If the configurations are incorrect or the VLAN is not created, service data will be discarded.
[AC6605]display vlan brief
U:Up;D:Down;TG:Tagged;UT:Untagged;
VID Name Status Ports
------------------------------------------------------------------
1 enable UT: GE0/0/4(D) GE0/0/5(D) GE0/0/6(D) GE0/0/7(D)
GE0/0/8(D) GE0/0/9(D) GE0/0/10(D) GE0/0/11(D)
GE0/0/12(D) GE0/0/13(D) GE0/0/14(D)
GE0/0/15(D) GE0/0/16(D) GE0/0/17(D)
GE0/0/18(D) GE0/0/19(D) GE0/0/20(D)
GE0/0/21(D) GE0/0/22(D) GE0/0/23(D)
GE0/0/24(D) Wlan-Dbss0(U) Wlan-Dbss1(U)
XGE0/0/1(D) XGE0/0/2(D)
TG: GE0/0/1(U) GE0/0/3(U)
149 enable UT: GE0/0/3(U)
TG: GE0/0/1(U)
150 enable UT: GE0/0/1(U)
TG: GE0/0/3(U)
Check the current VLAN configuration.
[AC6605-GigabitEthernet0/0/3]display this
#
interface GigabitEthernet0/0/3
port link-type trunk
port trunk pvid vlan 149
port trunk allow-pass vlan 149 to 150
#
return
Check interface configuration on the root AP.
To prevent such a failure, pay attention to the following points:
Configure one management VLAN and one or more service VLANs.
By default, packets sent from an AP, including the DHCP packets and CAPWAP packets are not tagged. Configure the switch interface directly connected to the AP to tag these packets with the management VLAN ID. Packets can be then sent to the DCHP server or AC through control of VLANs and routes.
Packets sent from the STA are not tagged either. Configure the AP to tag these packets with service VLAN IDs.
In direct forwarding, ensure that packets from service VLANs can pass through upstream interfaces of the AP. Configure the upstream interfaces as hybrid or trunk interfaces and to allow packets from the management VLAN and service VLANs to pass through. For example, configure the interface to allow packets form management VLAN 10 and service VLAN 20.
port link-type trunk
port trunk pvid vlan 10
port trunk allow-pass vlan 10 20
or
port link-type hybrid
port hybrid pvid vlan 10
port hybrid untagged vlan 10
port hybrid tagged vlan 20
In tunnel forwarding, service packets are encapsulated in CAPWAP packets. Configure the AP's upstream interfaces as access, trunk, or hybrid interfaces and to allow only the management VLAN (allowing service VLANs may cause errors). For example, configure the interface to allow only packets from management VLAN 10.
port link-type access
port default-vlan 10
or
port link-type trunk
port trunk pvid vlan 10
port trunk allow-pass vlan 10
or
port link-type hybrid
port hybrid pvid vlan 10
port hybrid untagged vlan 10
If a Layer 3 network is deployed between the AC and AP, the AP that has obtained an IP address cannot discover the AC to register with by broadcasting CAPWAP packets. Configure DCHP Option 43 in packets to transfer both the AC's IP address and AP's IP address. Then, the AP can send unicast CAPWAP packets to discover the AC and register with the AC. You can also configure Option 15 in DNS packets to notify the AP of the AC location.
An AP can obtain an IP address using DHCP or has a static IP address manually configured. DHCP is the most commonly used method.
After changing the AP bridge role on a WDS network, you need to restart the AP to make the new role take effect; otherwise, the AP cannot register with the AC.
