User guide

18-6 E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
S
TATUS
M
ONITORING AND
S
TATISTICS
The following port receive error information is collected by the switch:
• Receive Bad CRC Frames (RX CRC) — The total number of frames received by the
port that were of the correct length, but contained a bad FCS value.
• Receive Oversize Frames (RX Over) — The total number of good frames received
by the port greater than the supported maximum length of 1,522 bytes. For products
that use the “i” chipset, ports with jumbo frames enabled do no increment this
counter.
• Receive Undersize Frames (RX Under) — The total number of frames received by
the port that were less than 64 bytes long.
• Receive Fragmented Frames (RX Frag) — The total number of frames received by
the port were of incorrect length and contained a bad FCS value.
• Receive Jabber Frames (RX Jab) — The total number of frames received by the port
that was of greater than the support maximum length and had a Cyclic Redundancy
Check (CRC) error.
• Receive Alignment Errors (RX Align) — The total number of frames received by the
port that occurs if a frame has a CRC error and does not contain an integral number
of octets.
• Receive Frames Lost (RX Lost) — The total number of frames received by the port
that were lost because of buffer overflow in the switch.
P
ORT
M
ONITORING
D
ISPLAY
K
EYS
Table 18-2 describes the keys used to control the displays that appear when you issue
any of the
show port
commands.
Table 18-2: Port Monitoring Display Keys
Key(s) Description
U Displays the previous page of ports.
D Displays the next page of ports.
[Esc] or [Return] Exits from the screen.
0 Clears all counters.