Cisco Systems 5, NAM - page 136

3-20
User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
OL-22617-01
Chapter 3 Monitoring and Analysis
Response Time
Figure 3-11 Transaction Time versus Response Time Measurements
Table 3-7 lists and describes the ART metrics measured by NAM 5.0.
Client request Server response
Application
response time
Total transaction time
210305
Packet 1 Packet 2 Packet N Packet 1 Packet 2 Packet N
Tab l e 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
usually indicate problems with server resources, such as the CPU, Memory, Disk, or
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.
Min Response Time
Max Response Time
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
connections
Average number of concurrent TCP connections during the reporting interval
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