Cisco 11503 Administration Guide - Page 259

Chapter 6 Configuring Remote Monitoring (RMON) Viewing RMON Information Table 6-5 Field Descriptions for the show rmon-history Command (continued) Field Octets Packets Errors Util% Description The total number of octets of data (including those in bad packets) received on the network, excluding framing bits but including FCS octets. You can use this object as a reasonable estimate of Ethernet utilization. If greater precision is desired, sample the Ethernet statistic packet and octet objects before and after a common interval. The differences in the sampled values are packets (Pkts) and Octets, respectively, and the number of seconds in the Interval. These values are used to calculate the utilization of a 10 Mbps Ethernet port as follows: Pkts * (9.6 + 6.4) + (Octets * .8) Utilization Interval * 10,000 The result of this equation is the utilization value, which is the utilization percentage of the Ethernet segment on a scale of 0 to 100 percent. The total number of received packets (including bad packets, broadcast packets, and multicast packets). The total number of errors that RMON received for this port. The bandwidth utilization percentage of the Ethernet segment on a scale of 0 to 100 percent. Viewing Events in a Log File The CSS can send notifications of RMON alarm events to a traplog file or a configured log location, such as a log file on the CSS disk, a CSS session, a host syslog daemon, or an e-mail address. The notification itself displays the time that the event occurred, the event number, and its configured description in parentheses. For example: FEB 15 15:41:22 EVENT#4 FIRED: (Service Toys exceeded 30,000 connections). OL-5647-02 Cisco Content Services Switch Administration Guide 6-33