Connectivity Alerts

HPE Aruba Networking Central allows network administrators and users with admin permissions to configure alerts. For more information, see Configuring Alerts.

Following are the connectivity alerts that you can configure:

• DNS Delay Detected—Generates an alert when clients experience delay or timeout event occurs in response from the DNS Domain Name System. A DNS server functions as a phone book for the intranet and Internet users. It converts human-readable computer host names into IP addresses and IP addresses into host names. It stores several records for a domain name such as an address 'A' record, name server (NS), and mail exchanger (MX) records. The Address 'A' record is the most important record that is stored in a DNS server, because it provides the required IP address for a network peripheral or element. server. Set the severity values to generate an alert if the percentage of delay from the DNS server exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• DNS Failure Detected—Generates an alert when wireless clients experience a high number of connection failure with the DNS server. Set the severity values to generate an alert if the DNS failure percentage exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• DHCP Delay Detected—Generates an alert when there is an DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  delay or timeout event occurs from client to AP in the network. Set the severity values to generate an alert if the percentage of the DHCP delay exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• DHCP Failure Detected—Generates an alert when there is high number of DHCP failure observed from client to AP in the network. Set the severity values to generate an alert if the DHCP failure percentage exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• Authentication Delay Detected—Generates an alert when there is a delay or timeout event occurs during the client authentication process with the AP in the network. Authentication failures include the following:
  • Wi-Fi Wi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. security key-exchange failures
  • 802.1x authentication failures
  • MAC Media Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. authentication failures
  • Captive failures

  Set the severity values to generate an alert if the percentage of the authentication delay or timeout event exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.

• Authentication Failure Detected—Generates an alert when there are high number of client authentication failures in the network. Authentication failures include the following:
  • Wi-Fi security key-exchange failures
  • 802.1x authentication failures
  • MAC authentication failures
  • Captive failures

  Set the severity values to generate an alert if the authentication failure percentage exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.

• Association Delay Detected—Generates an alert when client association delay or timeout event is detected in the network. Set the severity values to generate an alert if the percentage of the association delay exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• Association Failure Detected—Generates an alert when client association failure is detected in the network. Set the severity values to generate an alert if the association failure percentage exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• Wi-Fi Security Key-Exchange Delay Detected—Generates an alert when there is a delay or timeout event occurs during the client authentication (Wi-Fi Security Key-Exchange) with the AP in the network. Set the severity values to generate an alert if the percentage of the Wi-Fi Security Key-Exchange delay exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• Wi-Fi Security Key-Exchange Failure Detected—Generates an alert when there are high number of client authentication failures (Wi-Fi Security Key-Exchange) in the network. Set the severity values to generate an alert if the percentage of the Wi-Fi Security Key-Exchange failure exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• 802.1X 802.1X is an IEEE standard for port-based network access control designed to enhance 802.11 WLAN security. 802.1X provides an authentication framework that allows a user to be authenticated by a central authority. Authentication Delay Detected—Generates an alert when there is a delay or timeout event occurs during the 802.1X authentication process in the network. Set the severity values to generate an alert if the percentage of the 802.1X authentication delay detected exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• 802.1X Authentication Failure Detected—Generates an alert when there are high number of 802.1X authentication failures in the network. Set the severity values to generate an alert if the percentage of the 802.1X authentication failure detected exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• MAC Authentication Delay Detected—Generates an alert when there is a delay or timeout event occurs during the MAC authentication process in the network. Set the severity values to generate an alert if the percentage of the MAC authentication delay detected exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• MAC Authentication Failure Detected—Generates an alert when there are high number of MAC authentication failures in the network. Set the severity values to generate an alert if the percentage of the MAC authentication failure detected exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• Captive Delay Detected—Generates an alert when there is a delay or timeout event occurs during the captive portal A captive portal is a web page that allows the users to authenticate and sign in before connecting to a public-access network. Captive portals are typically used by business centers, airports, hotel lobbies, coffee shops, and other venues that offer free Wi-Fi hotspots for the guest users. authentication process in the network. Set the severity values to generate an alert if the percentage of the captive portal detected exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.
• Captive Failure Detected—Generates an alert when there are high number of captive portal failures in the network. Set the severity values to generate an alert if the percentage of the captive failure detected exceeds the threshold value. The Duration field displays the duration after which the alert is generated. The default value is 30 minutes. You can add additional rules for this alert.