HP 6125G HP 6125G & 6125G/XG Blade Switches Network Management and Mon - Page 105
NQA concepts, Test group, Test and probe
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The counting for the average or accumulate threshold type is performed per test, but the counting for the consecutive type is performed after the test group starts. • Triggered actions The following actions may be triggered: { none-NQA only records events for terminal display. It does not send trap information to the network management server. NQA DNS tests do not support the action of sending trap messages. The action to be triggered in DNS tests can only be the default one, none. { trap-only-NQA records events and sends trap messages to the network management server. • Reaction entry In a reaction entry, a monitored element, a threshold type, and the action to be triggered are configured to implement threshold monitoring. The state of a reaction entry can be invalid, over-threshold, or below-threshold, using the following workflow: { Before an NQA test group starts, the reaction entry is in the state of invalid. { After each test or probe, threshold violations are counted according to the threshold type and range configured in the entry. If the threshold is violated consecutively or accumulatively for a specific number of times, the state of the entry is set to over-threshold. Otherwise, the state of the entry is set to below-threshold. If the action to be triggered is configured as trap-only for a reaction entry, when the state of the entry changes, a trap message is generated and sent to the network management server. NQA concepts Test group An NQA test group specifies test parameters including the test type, destination address, and destination port. Each test group is uniquely identified by an administrator name and operation tag. You can configure and schedule multiple NQA test groups to test different objects. Test and probe After the NQA test group starts, tests are performed at a specific interval. During each test, a specific number of probe operations are performed. Both the test interval and the number of probe operations per test are configurable. But only one probe operation is performed during one voice test. In different test types, probe operation has the following different meanings: • During a TCP or DLSw test, one probe operation means setting up one connection. • During a UDP jitter or a voice test, one probe operation means continuously sending a specific number of probe packets. The number of probe packets is configurable. • During an FTP, HTTP, DHCP, or DNS test, one probe operation means uploading or downloading a file, obtaining a web page, obtaining an IP address through DHCP, or translating a domain name to an IP address. • During an ICMP echo or UDP echo test, one probe operation means sending an ICMP echo request or a UDP packet. • During an SNMP test, one probe operation means sending one SNMPv1 packet, one SNMPv2C packet, and one SNMPv3 packet. 98