Troubleshooting Guide

Appendix A: Information to Gather Before Creating a Service Request
If the troubleshooting procedure outlined in this document does not resolve your issue, you need to create
a service request with Cisco Technical Support. Before you create a service request, gather this
information:
1. Identify the specific problem with NIC-to-switch interoperability.
For example, is the problem only with DHCP, Novell IPX, login, or performance?
2. Issue the show
tech-support command from all affected Cisco devices, if applicable; or, issue the
show
module , show config , show version , or the show port commands.
3. Know the make and model of the NIC.
4. Know the operating system and the NIC driver version.
5. Verify the consistency of the problem.
For example, does the problem occur across multiple Catalyst switches?
Xircom RealPort2
CardBus Ethernet
10/100 Adapter
(R2BE/RBE/CBE)
Models
Initial network
connections
can fail. DHCP
can obtain an
IP address,
and Windows
NT login and
Novell IPX can
fail.
adapter first
establishes link
to one of its
ports because
of initialization
delays. This
problem is
most
commonly
seen when the
network
adapter is
connected
directly to ports
on the switch.
The adapter,
by default,
when used
under some
operating
systems, has
almost no
delay between
link and the
initial network
request.
A new keyword,
Initialization Delay, is
added to the adapter
advanced properties
that prevents
forwarding of network
requests for a user-
selectable period of
time. Delays can be
added ranging from 1–
60 seconds. In most
cases, if you add a
delay in the 1–3 second
range, it resolves the
problem.
Xircom RealPort2
CardBus Ethernet
10/100 Adapter
(R2BE/RBE/CBE)
Models
Not able to
connect to the
network or get
an IP address
from the DHCP
server when
connected to a
port replicator
or docking
station.
Possible Basic
Input/Output
System (BIOS)
or driver
update
required.
Contact vendor
support for
more
information.
If you attempt to use a
CBE/CBE2/RBE in a
port replicator or
docking station, with
Windows 95, and have
problems, confirm that
your laptop has the
latest BIOS and that
the latest manufacturer
patches and utility
software are installed.
Xircom XE2000
PCMCIA NIC
Does not
autonegotiate
to 100 Mbps,
full-duplex.
NIC only
autonegotiates
to 100 Mbps,
half-duplex.
Known limitation of
XE2000 NIC. Refer to
the XE2000 release
notes.
PROXIM TSUNAMI
5054-R Wireless
Bridge
Not negotiating
properly with
Cisco catalyst
4510R-E.
Ports of
Catalyst
4510R-E and
PROXIM
TSUNAMI
5054-R
Wireless
Bridge
negotiation fails
and the
success rate is
intermittent.
PROXIM TSUNAMI
5054-R is incompatible
with Catalyst 4510R-E.