ZyXEL Communications VES-1124 -, User Manual

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VES-1124 User’s Guide
Status, Port Details and VDSL Summary 5-11
Table 5-3 Status: Port Details (Ethernet)
LABEL DESCRIPTION
Multicast This field shows the number of good multicast frames received.
Broadcast This field shows the number of good broadcast frames received.
TX Collision
The following fields display information on collisions while transmitting.
Single This is a count of successfully transmitted frames for which transmission is inhibited by exactly
one collision.
Multiple This is a count of successfully transmitted frames for which transmission was inhibited by more
than one collision.
Excessive This is a count of frames for which transmission failed due to excessive collisions. Excessive
collision is defined as the number of maximum collisions before the retransmission count is
reset.
Late This is the number of times a late collision is detected, that is, after 512 bits of the frame have
already been transmitted.
RX Error
The following fields display detailed information about frames received with error.
FCS This field shows the number of frames received of the proper size but with CRC error(s) and a
non-integral number of octets.
OverSize This field shows the number of packets received that were bigger than the maximum frame size.
Align This field shows the number of frames received of proper size but with CRC error(s) and a non-
integral number of octets.
Jabber This field shows the number of frames received that were greater than the maximum octets
(specified for the system by the configuration software) long and with either CRC or alignment
error(s).
Fragment This field shows the number of packets received that were less than 64 octets long, and with
either CRC (Cyclic Redundant Check) or alignment error(s).
UnderSize This field shows the number of frames received that were less than 64 octets long and without
CRC error(s) or alignment error(s).
Dropped Packet
The following fields display detailed information about frames that were dropped.
All This field shows the total number of frames that were dropped.
FwdLkup This field shows the number of unicast packets that were dropped after the forwarding table
lookup.
InOverrun This field shows the number of the incoming packets that were dropped because of an input
FIFO overrun.