Cisco 1503 Manuel du logiciel - Page 40

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Command Summary

show hub statistics

Syntax:

Mode:

Description:

3-40

Cisco Micro Hub User Guide

show hub statistics [hub id]

Guest

Displays statistics for the specified hub since the last time the clear-counter or

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

Hub ID

Frames

Bytes

--------------------------------------------------------------

1039

29354

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.

Alignment

Collisions

Errors

264

CRC

Total

Errors

486