Cisco Systems 5 manual 7lists and describes the ART metrics measured by NAM, Metric Description

Chapter 3 Monitoring and Analysis

Response Time

Figure 3-11 Transaction Time versus Response Time Measurements

Client request Server response

Packet 1 Packet 2 Packet N Application Packet 1 Packet 2 Packet N

response time

Total transaction time

210305

Table 3-7lists and describes the ART metrics measured by NAM 5.0.

Table 3-7			Application Response Time Metrics
	Metric			Description
	Average Response Time			Response Time is the time between the client request and the first response packet
				from the server, as observed at the NAM probing point. Increases in the response time
	Min Response Time
				usually indicate problems with server resources, such as the CPU, Memory, Disk, or
	Max Response Time
				I/O due to a lack of necessary resources or a poorly written application.
				This and other Response Time metrics are in millisecond (msec) units.
	Number of Responses			Total number of request-response pairs observed during the monitoring interval
	Number of Late Responses			Total number of responses that exceed the Max Response Time
	Number of Responses 1			Number of responses with a response time less than RspTime1 threshold
	Number of Responses 2			Number of responses with response time less than RspTime2 and larger than
				RspTime1
	Number of Responses 3			Number of responses with response time less than RspTime3 and larger than
				RspTime2
	Number of Responses 4			Number of responses with response time less than RspTime4 and larger than
				RspTime3
	Number of Responses 5			Number of responses with response time less than RspTime5 and larger than
				RspTime4
	Number of Responses 6			Number of responses with response time less than RspTime6 and larger than
				RspTime5
	Number of Responses 7			Number of responses with response time less than LateRsp and larger than RspTime6
	Client Bytes			Number of TCP payload bytes sent from the client(s) during the monitoring interval
	Server Bytes			Number of TCP payload bytes sent from the server(s) during the monitoring interval
	Client Packets			Number of TCP packets sent from the client(s) during the monitoring interval
	Server Packets			Number of TCP packets sent from the server(s) during the monitoring interval
	Average number of concurrent			Average number of concurrent TCP connections during the reporting interval
	connections
	Number of new connections			Number of new TCP connections made (TCP 3-way handshake) during the
				monitoring interval
	Number of closed connections			Number of TCP connections closed during the monitoring interval
		User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
	3-20			OL-22617-01