Virtual Service Metrics

Metrics are collected for the virtual service object type.

Virtual Service Metrics

Metric Name	Category	Description
Average Bandwidth	L4 statistics	Average transmit and receive network bandwidth between client and virtual service.
Average New Established Connections	L4 statistics	Averaged rate of new client connections per second.
Percent Connections DOS Attacks	L4 statistics	Fraction of L4 connections owing to DoS.
Average New SSL Handshakes	L7 statistics	Average new successful SSL sessions.
Max SSL Open Connections	L7 statistics	Maximum number of open SSL sessions.
RPS	Virtual Service Metrics	Average rate of client HTTP requests received by the virtual service per second.
CPS	Virtual Service Metrics	Rate of total connections per second.
Open Connections	Virtual Service Metrics	Max number of open connections.
Client RTT	Virtual Service Metrics	Average network round trip time between client and virtual service.
Server RTT	Virtual Service Metrics	Averaged RTT across all connections closed.
App response	Virtual Service Metrics	Average latency measured for pool server.
Data transfer time	Virtual Service Metrics	Average client data transfer time that represents latency of sending response to the client excluding the RTT time. Higher client data transfer time signifies lower bandwidth between client and the service engine.
End to end timing	Virtual Service Metrics	Average network round trip time between the client and virtual service.
Request packets	Virtual Service Metrics	Average rate of packets received per second.
Tx packets	Virtual Service Metrics	Average rate of packets transmitted per second.
Requests	Virtual Service Metrics	Average rate of client HTTP requests received by the virtual service per second.
Request Errors %	Virtual Service Metrics	Percent of 4xx and 5xx responses.
Rx Packets	Virtual Service Metrics	Average rate of packets received per second.
Tx Packets	Virtual Service Metrics	Average rate of packets transmitted per second.
DoS attacks	Virtual Service Metrics	Number DDOS attacks occurring.
Throughput	Virtual Service Metrics	Average transmit and receive network bandwidth between client and virtual service.
HTTP / HTTP2 Request	Virtual Service Metrics	Rate of HTTP responses sent per second and average number of client HTTP2 requests received by the Virtual Service per second.
DNS Query Types	Virtual Service Metrics	Rate of DNS Responses of type A per second, rate of DNS Requests of type AAAA per second, rate of DNS Requests of type NS per second, rate of DNS requests of type SRV per second, rate of DNS requests of type MX per second, and rate of DNS requests of type OTHER per second.
DNS Queries, % errors	Virtual Service Metrics	Rate of DNS responses per second, including errors and Percentage of DNS responses with errors.
TCP vs UDP	Virtual Service Metrics	Rate of TCP queries per second and rate of UDP queries per second.
Total Score	Health Score	Total health score of the virtual service. The final health score for the virtual service equals the performance score minus the various penalty scores.
Security Threat Level	Health Score	Security penalty score of the virtual service. The security penalty shows risks due to configuration settings that leave a site vulnerable, as well as vulnerability to attacks such as DDoS.
Anomaly Score	Health Score	Anomaly penalty score of the virtual service. Anomaly is defined as traffic that is outside the statistical norm for the time period.
Resource Score	Health Score	Resource penalty score of the virtual service. Any penalty assessed because of resource availability issues is assigned a score, which is then subtracted from the performance score.
Performance Score	Health Score	Performance score of the virtual service. Performance is comprised of end user’s experience and server response. The performance score is a positive number from 0 (down) to 100 (ideal).