Hub statistics menu, Sunnyvale, Table 1: types of ethernet frames(continued) – Allied Telesis AT-S10 TurboStack User Manual
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Management Menus
26
Hub Statistics Menu
When you select
Hub Statistics
from the main menu, the following
menu appears:
The menu allows you to choose the level of statistical information you
would like to see: from the hub to the type of Ethernet frame, also called
counters. The counters, described in Table 1, are standard MIB objects.
Table 1:
Types of Ethernet Frames
Frame Type
Description
Good Frames
Frames (packets) received without error.
CRC Errors
Frames with a Cyclic Redundancy Check (CRC) error, but with the
proper length (64-1518 bytes) and no Collision or Alignment
Error occurrences.
Alignment Errors
Frames with a non-integral number of bytes (i.e., the frame length
in bits was not evenly divisible by 8), but with the proper length
(64-1518 bytes).
Runts
Frames less than the Ethernet/IEEE 802.3 minimum frame length
(64 bytes including the CRC).
Long Frames
Frames greater than the Ethernet/IEEE 802.3 maximum frame
length (1518 bytes including the CRC).
Bad Frames
The sum of CRC Errors, Alignment Errors, and Long Frames.
Total Frames
The sum of Good Frames and Bad Frames.
Short Events
Frame fragments less than 74 bits in length.
Sunnyvale
Please select an option:
Hub overview
Module overview
Individual port overview
TOtal frames
Good frames
Bad frames
Crc errors
Alignment errors
Runt frames
LOng frames
TRansmit collisions
POrt collisions
LAte collisions
SHort events
Jabber lockups
PArtitions
Data rate mismatches
SOurce address changes
Zero all statistics counters on the entire hub
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