Hewlett Packard Enterprise aruba, Troubleshooting Manual, Page: 40 / 41

Chapter 7
Mesh Networks
Mesh Networks
The following are common issues observed in mesh networks:
n
APs are Unable to Establish a Mesh Link
APs are Unable to Establish a Mesh Link
The following procedure describes how to troubleshoot issues, if APs fail to establish a mesh link:
1. Check Mesh Cluster Name and Mesh Cluster Key of the APs
2. Check the Extended SSID Settings of the APs
3. Check if a 5 GHz SSID is Configured on the Network
4. Check the Uplink Connection of the Mesh Point AP
5. Check the RF Environment of the Mesh APs
Check Mesh Cluster Name and Mesh Cluster Key of the APs
APs must have the same mesh cluster name and mesh cluster key to form a cluster. The mesh cluster name
and the mesh cluster key is configured using the
mesh-cluster command.
Run the show mesh cluster configuration command in the CLI to view mesh cluster information of the
AP. Check the cluster details on mesh APs to verify if they have the same mesh cluster name and mesh
cluster key.
The sample below displays the mesh cluster details, generated by the show mesh cluster configuration
command:
(Instant AP)# show mesh cluster configuration
Mesh cluster name :mesh_clusterl
Mesh cluster key :Manual
Check the Extended SSID Settings of the APs
Ensure that Extended SSID is disabled in the AP. APs will fail to establish a mesh link, if extended SSID is
enabled. The extended SSID setting is available in General > Advanced options in Configuration >
System page of the Instant WebUI.
Check if a 5 GHz SSID is Configured on the Network
Th 5 GHz radio of the AP is used to handle the mesh-backhaul traffic. Instant APs automatically disable the 5
GHz radio if there are no active networks in the 5 GHz band. Therefore, it is necessary to have an
SSID operating on the 5GHz band to keep alive the 5 GHz radio of the AP.
Run the show network command to view the list of networks enabled on the AP. Check the network list for
5 GHz networks. If there are no 5 GHz networks, configure an SSID to operate in the 5 GHz band.
Check the Uplink Connection of the Mesh Point AP
In mesh networks, the AP with the Ethernet uplink connection will function as the mesh portal AP and there
can be only one mesh portal in a mesh cluster. If two APs in a mesh network have Ethernet uplink, both the
Aruba Instant AP | Troubleshooting Guide 40