D-Link DES-3326SR, Руководство пользователя

Страница: 121 / 240

D-Link DES-3326SR Layer 3 Switch
The following fields from above are described in more detail:
Parameter Description
Unit Allows the selection of a particular switch in a switch stack if you have
installed the optional stacking module and have properly interconnected the
switches.
Port Allows the selection of a particular port on the switch.
Update Interval
< Suspend >
The interval (in seconds) that the table is updated. The default is Suspend.
RX Frames Received packets.
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).
Undersize The total number of frames received that were less than 64 octets long
(excluding framing bits, but including FCS octets) and were otherwise well
formed.
Oversize
The total number of frames received that were longer than 1518 octets
(excluding framing bits, but including FCS octets) and were otherwise well
formed.
Fragment The total number of frames received that were less that 64 octets in length
(excluding framing bits, but including FCS octets) and had either an FCS or
an alignment error.
Jabber The total number of frames received that were longer than 1518 octets
(excluding framing bits, but including FCS octets), and had either an FCS or
an alignment error.
Drop Packets
The total number of events in which packets were dropped due to a lack of
resources.
TX Frames Transmitted packets.
Excessive Deferral
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 Late Collisions. The number of times that a collision is detected later than
512 bit-times into the transmission of a packet.
Excessive Collision Excessive Collisions. The number of frames for which transmission failed
due to excessive collisions.
Single Collision Single Collision Frames. 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.
111