NS3000/iX Operations and Maintenance Reference Manual (36922-90042)
204 AppendixA
LINKCONTROL Command
NS 3000/iX 100VG-AnyLAN Link Statistics
alignment errors occur frequently, one of the following may be the
cause:
• A 100VG-AnyLAN adapter card is not operating to within 802.12
specifications.
• A 100VG-AnyLAN hub is performing poorly.
• The 100VG-AnyLAN cable is not CAT-3 or CAT-5 grade.
• A section of 100VG-AnyLAN cable contains wire pairs which are not
properly twisted, paired, or of equal length.
Link disconnects — Number of times the link driver noticed the link
had previously been established, but was no longer up. This may occur
because the cable was unplugged, the hub was powered off, the hub
automatically requested a reconnect, or normally (at link shutdown
time). This total does not include repetitive, failed attempts by the link
driver to reestablish the link. The maximum value of this 32-bit field is
2147483647.
Link speed — Maximum link speed (either 100 or 10) in millions of
bits per second, the link is currently configured to operate at. When
displaying a 100VG-AnyLAN link operating in 100VG-AnyLAN mode,
this value will always be 100. When a 100VG-AnyLAN link is operating
in 10Base-T mode, this value will always be 10.
Link mode — Electrical mode the link is currently operating at. When
displaying a 100VG-AnyLAN link operating in 100VG-AnyLAN mode,
this value will always be “100VG-AnyLAN”. When a 100VG-AnyLAN
link is operating in 10Base-T mode, this value will be “10Base-T”.
Link training result — The result of the last automatic
100VG-AnyLAN “link training” operation performed during link
establishment. If the cable is connected to an operational
100VG-AnyLAN hub port, the link is configured for 100VG-AnyLAN
operation in NMCONFIG, and the link driver has been started, this
value should be “CONNECTED”. Most other values indicate a problem
with the hub port, the connection to that 100VG-AnyLAN hub port, or
the cable grade is not CAT-3 or CAT-5.
Receive bytes norm — Total number of bytes successfully received
over the medium at normal priority. This includes unicast, multicast,
broadcast, and link training frames. It does not include frames received
by the adapter card but dropped because no upper layer protocol had
requested those frames, or because the link was disconnected. The
maximum value of this 64-bit field is 17 digits, or about 99 million
Gbytes. In the example above, 5.30 billion bytes were received, or about
5.06 Gbytes.
Receive bytes hipri — Total number of bytes successfully received
over the medium at high (demand) priority. This includes unicast,
multicast, and broadcast frames. It also includes frames for which