Abstract: Example implementations relate to management of clusters. A cluster recovery manager may comprise a processing resource; and a memory resource storing machine-readable instructions to cause the processing resource to: adjust, based on a monitored degree of performance of a controller of a controller cluster, a state of the controller to one of a first state and a second state; and reassign a corresponding portion of a plurality of APs managed by the controller periodically to a different controller until the state of the controller is determined to be adjustable to the first state. The reassignment can be triggered responsive to a state adjustment of the controller from the first state to the second state.

Abstract: Some examples relate to detecting network link failure. In an example, a determination may be made at a first network device on a network regarding an average round-trip delay time (RTD) between the first network device and a second network device over a given time interval during a given period of time. Then, for the given time interval, a keepalive packet may be sent from the first network device to the second network device at the average RTD of the given time interval for a keepalive time. In response to a determination, by the first network device that there is no acknowledgement of the keepalive packet from the second network device during the keepalive time, a network link between the first network device and the second network device may be identified as failed.

Abstract: In some examples, a non-transitory machine-readable storage medium having stored thereon machine-readable instructions to cause a computing processor to track a Layer 2 (L2) bit indicating a L2 connectedness between a first user anchor controller (UAC) corresponding to a client device and a second UAC acting as a standby UAC for the first UAC in a controller cluster, and reassign a third UAC to be the standby UAC for the first UAC in response to the L2 bit indicating that the first UAC is not connected to the second UAC in the same L2 network, wherein the first UAC is in the same L2 network as the third UAC.

Abstract: An example of a system may include a controller to monitor network parameters in a wireless local area network (WLAN), the controller may include a processing resource and a memory resource including instructions executable by the processing resource to analyze network parameters in the WLAN over a period of time, determine a threshold for the network parameters, determine a plurality of time intervals based on an upgrade to be applied to the WLAN, identify when the network parameters of the WLAN are below the determined threshold, and initiate the upgrade to the WLAN when the network parameters are below the determined threshold where the upgrade is performed during one of the plurality of time intervals.

Abstract: In an example, an access point includes a first and second Ethernet port, a processing resource and a memory resource storing machine readable instructions. The machine readable instructions may be to cause the processing resource to create a first communication channel between the access point and a first network zone using the first Ethernet port and to create a second communication channel between the access point and a second network zone using the second Ethernet port. The first and second network zones may be independently configured with respective first and second zone controllers and the first and second communication channels may exist simultaneously.

Abstract: An example of a system may include a processing resource and a computing device comprising instructions executable by the processing resource to determine an interval based on an amount of time to upgrade a network; determine a series of time windows based on the interval; analyze data traffic in the network over the series of time windows; identify a subset of the series of time windows that are sequential and non-overlapping; and select a particular time window from the subset of the series of time windows to perform an upgrade of the network based on the analyzed data traffic.

Abstract: An example of a system may include a processing resource and a computing device comprising instructions executable by the processing resource to assign a first radio, operable in a frequency band, of an access point (AP) to a prioritized data zone utilizing the AP; and assign a second radio, operable in the frequency band, of the AP to a plurality of non-prioritized data zones utilizing the AP.

Abstract: Some examples relate to detecting network link failure. In an example, a determination may be made at a first network device on a network regarding an average round-trip delay time (RTD) between the first network device and a second network device over a given time interval during a given period of time. Then, for the given time interval, a keepalive packet may be sent from the first network device to the second network device at the average RTD of the given time interval for a keepalive time. In response to a determination, by the first network device that there is no acknowledgement of the keepalive packet from the second network device during the keepalive time, a network link between the first network device and the second network device may be identified as failed.

Abstract: Example implementations relate to management of clusters. A cluster recovery manager may comprise a processing resource; and a memory resource storing machine-readable instructions to cause the processing resource to: adjust, based on a monitored degree of performance of a controller of a controller cluster, a state of the controller to one of a first state and a second state; and reassign a corresponding portion of a plurality of APs managed by the controller periodically to a different controller until the state of the controller is determined to be adjustable to the first state. The reassignment can be triggered responsive to a state adjustment of the controller from the first state to the second state.

Abstract: An example of a system may include a controller to monitor network parameters in a wireless local area network (WLAN), the controller may include a processing resource and a memory resource including instructions executable by the processing resource to analyze network parameters in the WLAN over a period of time, determine a threshold for the network parameters, determine a plurality of time intervals based on an upgrade to be applied to the WLAN, identify when the network parameters of the WLAN are below the determined threshold, and initiate the upgrade to the WLAN when the network parameters are below the determined threshold where the upgrade is performed during one of the plurality of time intervals.

Abstract: An example of a system may include a processing resource and a computing device comprising instructions executable by the processing resource to assign a first radio, operable in a frequency band, of an access point (AP) to a prioritized data zone utilizing the AP; and assign a second radio, operable in the frequency band, of the AP to a plurality of non-prioritized data zones utilizing the AP.

Abstract: An example of a system may include a processing resource and a computing device comprising instructions executable by the processing resource to determine an interval based on an amount of time to upgrade a network; determine a series of time windows based on the interval; analyze data traffic in the network over the series of time windows; identify a subset of the series of time windows that are sequential and non-overlapping; and select a particular time window from the subset of the series of time windows to perform an upgrade of the network based on the analyzed data traffic.

Abstract: In an example, an access point includes a first and second Ethernet port, a processing resource and a memory resource storing machine readable instructions. The machine readable instructions may be to cause the processing resource to create a first communication channel between the access point and a first network zone using the first Ethernet port and to create a second communication channel between the access point and a second network zone using the second Ethernet port. The first and second network zones may be independently configured with respective first and second zone controllers and the first and second communication channels may exist simultaneously.

Abstract: In some examples, a non-transitory machine-readable storage medium having stored thereon machine-readable instructions to cause a computing processor to track a Layer 2 (L2) bit indicating a L2 connectedness between a first user anchor controller (UAC) corresponding to a client device and a second UAC acting as a standby UAC for the first UAC in a controller cluster, and reassign a third UAC to be the standby UAC for the first UAC in response to the L2 bit indicating that the first UAC is not connected to the second UAC in the same L2 network, wherein the first UAC is in the same L2 network as the third UAC.

Abstract: Example method includes: establishing, by an access point, a first connection to a first controller associated with a first zone; establishing, by the access point, a second connection to a second and different controller associated with a second and different zone; determining, by the access point, that the first zone is preferred over the second zone; receiving, by the access point, an association request from a new client device managed by the first controller; in response to a number of client devices managed by the second controller and associated with the access point exceeding a predefined number, selectively de-authenticating at least one client device managed by the second controller associated with multi-zones; and transmitting, by the access point, an association response to the new client device managed by the first controller to allow the new client device connect to the access point.

Abstract: Example method includes: establishing, by an access point, a first connection to a first controller associated with a first zone; establishing, by the access point, a second connection to a second and different controller associated with a second and different zone; determining, by the access point, that the first zone is preferred over the second zone; receiving, by the access point, an association request from a new client device managed by the first controller; in response to a number of client devices managed by the second controller and associated with the access point exceeding a predefined number, selectively de-authenticating at least one client device managed by the second controller associated with multi-zones; and transmitting, by the access point, an association response to the new client device managed by the first controller to allow the new client device connect to the access point.

Abstract: Example implementations relate to node load balancing. In some examples, an apparatus may comprise a processing resource that may execute instructions to determine that a first station is authenticated to a first node and authenticate the first station to a second node in response to a load balancing operation being triggered, wherein the second node is layer 2 (L2) connected to the first node. The processing resource may execute instructions to update an index associated with the apparatus in response to the first station being authenticated to the second node.

Abstract: The present disclosure discloses a method and a non-blocking uplink architecture for access points augmented by client association based load balancing. Specifically, an access point (AP) can receive a first data set using a particular radio of a plurality of radios, and then transmit the first data set to a network device by: (a) transmitting, to the network device, a first subset of the first data set using a first wired connection between the access point and the network device, and (b) transmitting, to the network device, a second subset of the first data set using a second wired connection between the access point and the network device. Moreover, the AP can select a particular wired connection for transmitting a subset data received from a radio of the AP to the network device, where multiple wired connections exist between the access point and the network device.