show hub statistics
Syntax: | show hub statistics [hub id] |
Mode: Guest
Description: Displays statistics for the specified hub since the last time the clear-counteror restart command was entered.
Command Keyword Definition
•hub id—(Optional) Number used to identify the hub in a stack. An integer between 1 and 5. Read the section “Hub ID Numbers” earlier in this chapter for information about how to determine hub ID numbers.
Statistics are displayed in the following format:
Hub> show hub statistics 1
Alignment | CRC | Total |
Hub ID Frames Bytes Collisions Errors | Errors | Errors |
--------------------------------------------------------------
Command Display Definitions
•Hub ID—Position of the hub in the stack, from top to bottom.
•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 CRC errors.
•Total errors—Total number of errors, including the following types: frame control sequence, alignment, frames-too-long, short events, late events, jabber, and data rate mismatches.
