Operation Manual – Traffic AccountingH3C S7500 Series Ethernet Switches Chapter 1 Traffic Accounting Configuration1-2z Traffic accounting: the process in which the traffic accounting card analyzes andcalculates the traffic obtained from the traffic collection card. Traffic accounting isperformed on the basis of the users’ online IP addresses and the traffic groups towhich the accessed networks belong.1.1.2 Implementation Process of Traffic AccountingFigure 1-1 shows the implementation process of traffic accounting on the H3C S7500Series Switches.Figure 1-1 Implementation process of traffic accountingThe following section details the process of traffic accounting:1) After a user passes the 802.1x authentication, the user logs in successfully.2) The authenticator device obtains the online IP address of the user and starts tomeasure the traffic of the user.3) Traffic is generated while the user accesses networks.4) The traffic collection card sends the user's online traffic to the traffic accountingcard.5) The traffic accounting card performs traffic statistics based on traffic groups, andgenerates traffic statistics, which reflect the accumulative traffic generated sincethe user gets online.6) The traffic accounting card periodically sends traffic statistics to the accountingserver.7) When the user goes offline, the authenticator device sends the total traffic to theaccounting server.8) The accounting process is over for this user.1.2 Configuring Traffic Accounting1.2.1 Prerequisitesz A service card that serves as the traffic accounting card is plugged into the switch.z 802.1x is enabled on the switch.z A CAMS server is properly configured.