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Page 66 / 160 Scroll up to view Page 61 - 65
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
54
Port
Select the port you want port error packet statistics for from the drop-down menu.
Interval
Select the desired setting between
2 seconds
and
60 seconds
or
Suspend
.
Clear
Clicking this button clears all statistics counters on this window.
CrcError
Counts otherwise valid frames that did not end on a byte (octet) boundary.
Undersize
The number of frames detected that are less than the minimum permitted frame size of 64
bytes and have a good CRC. Undersize frames usually indicate collision fragments, a
normal network occurrence.
Oversize
Counts packets received that were longer than 1518 octets, or if a VLAN frame 1522
octets, and less than the MAX_PKT_LEN. Internally, MAX_PKT_LEN is equal to 1522.
Fragment
The number of packets less than 64 bytes with either bad framing or an invalid CRC.
These are normally the result of collisions.
Jabber
The number of frames with lengths more than the MAX_PKT_LEN bytes. Internally,
MAX_PKT_LEN is equal to 1522.
Drop Packets
The number of frames that are dropped by this port since the last Switch reboot.
Excessive
Deferral
Counts the number of frames for which the first transmission attempt on a particular
interface was delayed because the medium was busy.
CRC Error
For 10 Mbps ports, the counter records CRC errors (FCS or alignment errors). For 100
Mbps ports, the counter records the sum of CRC errors and code errors (frames received
with rxerror signal).
Late Collision
Counts the number of times that a collision is detected later than 512 bit-times into the
transmission of a packet.
Excessive
Collision
The number of frames for which transmission failed due to excessive collisions.
Single Collision
The number of successfully transmitted frames for which transmission is inhibited by more
than one collision.
Collision
An estimate of the total number of collisions on this network segment.
Port Packet Analysis
Figure 6- 32.
Port Packet Analysis window
The information is described as follows:
Page 67 / 160
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
55
Parameter
Description
Port
Select the port you want port error analysis statistics for from the drop-down menu.
Interval
Select the desired setting between
2 seconds
and
60 second,
or
Suspend
.
Clear
Clicking this button clears all statistics counters on this window.
64
The total number of packets (including bad packets) received that were 64 octets in length
(excluding framing bits but including FCS octets).
65-127
The total number of packets (including bad packets) received that were between 65 and
127 octets in length inclusive (excluding framing bits but including FCS octets).
128-255
The total number of packets (including bad packets) received that were between 128 and
255 octets in length inclusive (excluding framing bits but including FCS octets).
256-511
The total number of packets (including bad packets) received that were between 256 and
511 octets in length inclusive (excluding framing bits but including FCS octets).
512-1023
The total number of packets (including bad packets) received that were between 512 and
1023 octets in length inclusive (excluding framing bits but including FCS octets).
1024-1518
The total number of packets (including bad packets) received that were between 1024 and
1518 octets in length inclusive (excluding framing bits but including FCS octets).
Unicast RX
Displays the number of unicast packets received by the switch in total number (Frames)
and the rate (Frames/sec).
Multicast RX
Displays the number of multicast packets received by the switch in total number (Frames)
and the rate (Frames/sec).
Broadcast RX
Displays the number of broadcast packets received by the switch in total number
(Frames) and the rate (Frames/sec).
RX Bytes
Displays the number of bytes (octets) received by the switch in total number (Total), and
rate (Total/sec).
RX Frames
Displays the number of packets (frames) received by the switch in total number (Total),
and rate (Total/sec).
TX Bytes
Displays the number of bytes (octets) transmitted by the switch in total number (Total),
and rate (Total/sec).
Address Tables
The Address Tables include the
MAC Address Table
and
ARP Table
.
Page 68 / 160
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
56
MAC Address Table
Figure 6- 33.
MAC Address Table window
The information is described as follows:
Parameter
Description
Browse
Click this button to initiate the desired method for viewing MAC addresses.
Clear
Clicking this button clears all statistics counters on this window.
Page 69 / 160
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
57
ARP Table
Figure 6- 34.
ARP Table window
Search the ARP entry table by Interface Name or by IP Address. You may also specify Static or Dynamic entries only by
selecting the Type and specifying
Static
or
Dynamic
from the pull-down menu. Click the
Find
button to initiate the search
for the ARP Table.
Clicking the
Clear Table
button to clear all statistics counters on this window.
Status
The Status windows include
GVRP Status
,
Router Ports
,
IGMP Snooping Group Table
, and
Switch History
.
GVRP Status
This allows the GVRP status for each of the switch’s ports to be viewed by VLAN. This window displays the ports on the
switch that are currently Egress or Untagged ports.
Page 70 / 160
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
58
Figure 6- 35.
GVRP Status window
Router Ports
This displays which of the switch’s ports are currently configured as router ports. A router port configured by a user (using
the console or Web-based management interfaces) is displayed as a static router port, designated by
S
. A router port that is
dynamically configured by the switch is designated by
D
.
Figure 6- 36.
Router Ports window
IGMP Snooping Group Table
This allows the switch’s IGMP Snooping table to be viewed. IGMP Snooping allows the switch to read the Multicast Group
IP address and the corresponding MAC address from IGMP packets that pass through the switch. The ports where the
IGMP packets were snooped are displayed, signified with an M. The number of IGMP reports that were snooped is also
displayed in the Reports
field.

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