Alerts

Alerts will notify you when there are issues or potential issues with either the Exinda appliance system (such as CPU utilization and memory paging) or with your traffic (such as an application performance score dropped).The alerts can either be sent by email or by SNMP traps. Use the alerts to ensure the system and your network is operating the way you need it to.

	Note To email alerts, valid SMTP and email settings are required. See Configure Email. Recipients of the email alerts are configured where SMTP is configured. To send SNMP traps, valid SNMP settings are required. See Configure SNMP.

The following alerts can be enabled:

• SLA Latency - Alert raised when the specified latency for an SLA object is exceeded. See Configure Site Service Level Agreements.
• SLA Loss - Alert raised when there is loss for a SLA.
• APS - Alert raised when the defined threshold for an APS object is exceeded.
• APM - Alert raised when the defined threshold for an APM object is exceeded.
• Connection Limiting - Alert raised when one or more Virtual Circuits has connection limits enabled, and the threshold was reached.
• Max Accelerated Connections Exceeded - Alert raised when the number of accelerated connections exceeds the licensed limit. Connections over the licensed limit pass through the appliance and are not accelerated.

• Asymmetric Route Detection - Alert raised when traffic from a single connection comes in to the network through one interface or node, and goes out through another interface or node.
• SMB signed connections - Alert raised when SMB signed connections are present.
• MAPI Encrypted Connections - Alert raised when encrypted MAPI traffic to a Microsoft Exchange server is detected on an Exinda appliance. Encrypted MAPI traffic cannot be accelerated.

• CPU Utilization - Alert raised when the CPU  utilization threshold is reached. The defaults are 95% and 80% busy respectively.
• Disk Usage - Alert raised when the used disk space threshold is reached. The defaults are 7% and 10% free respectively.
• Memory Paging - Alert for memory use and paging.
• NIC Collisions - Alert raised when collisions are present on the interfaces. The defaults are 20 and 1 per 30 sec respectively.
• NIC Link Negotiation - Alert raised when the speed/duplex on an interface is set to auto, but it is negotiating at half duplex and/or 10Mbps.
• NIC Dropped packets - Alert raised when dropped packets are present on the interfaces.
• NIC Problems -RX - Alert raised when RX errors are present on the interfaces.
• NIC Problems -TX - Alert raised when TX errors are present on the interfaces.
• System Startup - Alert raised when the Exinda appliance boots up.
• Bridge Link - Alert raised when one of the links on an enabled bridge is down.
• Bridge Direction - Alert raised when the appliance cabling is incorrect. In most cases, it indicates the Exinda WAN interface has been incorrectly plugged into the LAN and vice versa.
• Redundant Power - Alert raised when one of the power supplies fails (only available on platforms with power redundancy).
• Redundant Storage - Alert raised when one of the hard disks fails (only available on platforms with storage redundancy).

Where do I find this configuration?

Go to Configuration > System > Setup > Alerts.

To enable alerts

1. To receive alert notifications, select the Enable checkbox for the appropriate alert.

   For a description of when each alert is triggered, refer to the table below.

2. Select what type of notification to receive: an Email, an SNMP Trap, or both.

3. For CPU Utilization, Disk Usage, or NIC Collisions alerts, specify the Trigger Threshold and Clear Threshold levels that cause the notifications to be sent.

   When the Trigger Threshold is reached, an alert notification is sent to the administrator. When the Clear Threshold values are reached, the notifications stop being sent.

4. Click Apply Changes.