Cisco Systems 1503 manual Statistics Commands, Show system statistics, Hub show system statistics

Statistics Commands

Statistics Commands

Use the commands in this section to display statistics for a stack, a specific hub in a stack, or a specific port in a stack since a restart or since the counter was last cleared.

show system statistics

Syntax: show system statistics

Mode: Guest

Description: Displays statistics for the entire stack.

Statistics are displayed in the following format:

Hub> show system statistics

Frames: 9755

Bytes: 78040

Collisions: 671

Alignment errors: 45

CRC errors: 33

Total errors: 867

Command Display Definitions

•Frames—Number of frames (packets) passing through the hub.

•Bytes—Number of bytes passing through the hub.

•Collisions—Number of times that network devices attached to any one of the hubs in the stack have attempted to send data simultaneously.

•Alignment errors—Number of mis-synchronized data packets.

•CRC errors—Number of cyclic redundancy check (CRC) errors.

•Total errors—Total number of errors of the following types: frame control sequence, alignment, frames-too-long, short events, late events, jabber, and data rate mismatches.

Using Your Hub Software 3-39