Troubleshooting Guide

EtherJet
CardBus
Adapter. If the
network speed
is forced to 10
Mbps, severe
throughput
problems can
be
experienced.
reversed cables, can
be set to OFF in order
to disable polarity
correction. This
restores normal
throughput.
IBM ThinClient
Workstations
Link flaps
continuously
after extended
operation.
Workstations
earlier than
Service Pack
3.0 bounce the
link on the
switch after
continuous use
when attached
to Catalyst
2948G or 4000
switches on
software
version 6.x and
later.
Upgrade IBM
ThinClient to Service
Pack 3.0.
Intel Pro/100
Consistent link
up/down
connections to
Catalyst
switches.
May be caused
by power
management.
Contact Intel
technical
support for
further
information.
1. Choose Control
Panel > System
> Hardware >
Device
Manager.
2. Choose
Network
Adapters >
Intel Pro 100 +.
3. At the Power
Management
tab, uncheck
Allow the
computer to
turn off
this device .
Intel Pro/1000 T
Gigabit Copper NIC
When an Intel
Pro/1000 T
NIC is
connected to a
Catalyst
switch, you can
see poor
network
connections or
excessive
numbers of
dropped
packets. The
interoperability
issue arises
when a module
with a ten bit
interface (TBI)
transmits an
odd byte
packet to a
receiver with a
Gigabit media-
independent
interface
(GMII).
The
interoperability
issue arises
from the
implementation
of Carrier
Extension.
Carrier
Extension is
detailed in
subsection
35.2.3.5 in the
IEEE 802.3
specification.
Carrier
Extension can
be used to pad
the last byte of
a packet, so
the packet is
aligned on an
even-
numbered
boundary.
Contact Intel technical
support for the latest
driver.
Sun Microsystems
QFE Card
Unable to
manually set
speed and
duplex
correctly.
Manually
setting speed
and duplex
only affects the
first of four
ports.
Contact vendor
technical support to
obtain the latest driver
to resolve the issue.
Sun Microsystems
v1.1 Gigabit Cards
Unable to
establish link.
V1.1 can
potentially not
establish link to
switch.
Contact vendor
technical support or
v2.0 Gigabit Card.