Cisco Systems 2.5 Interface List, Select Chart Types to Monitor Group

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Cisco Router and Security Device Manager 2.5 User’s Guide
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Chapter42 Viewing Router Information
Interface Status
Interface List
Select the interface for which you want to display statistics from this list. The list
contains the name, IP address and subnet mask, the slot and port it is located in,
and any Cisco SDM or user description entered.
Select Chart Types to Monitor Group
These check boxes are the data items for which Cisco SDM can show statistics on
the selected interface. These data items are as follows:
•Packet Input—The number of packets received on the interface.
•Packet Output—The number of packets sent by the interface.
•Bandwidth Usage—The percent of bandwidth used by the interface, shown as
a percentage value. Here is how bandwidth percentage is computed:
Bandwidth percentage=(Kbps/bw) * 100,
where
bits per second= ((change in input+change in output) * 8) / poll interval
Kbps= bits per second/1024
bw=bandwidth capacity of the interface
Because the differences in bytes input and bytes output can only be co mputed
after the second view interval, the bandwidth percentage graph shows the
correct bandwidth usage starting with the second view interval. See the View
Interval section of this topic for polling intervals and view intervals.
•Bytes Input—The number of bytes received on the interface.
•Bytes Output—The number of bytes sent by the interface.
•Errors Input—The number of errors occurring while receiving data on the
interface.
•Errors Output—The number of errors occurring while sending data from t he
interface.
•Packets flow—The number of packets in the flow for the chosen interface.
This data item appears only if configured under Configure > Interfaces and
Connections > Edit > Application Service for the chosen interface.