Installation guide

CUSTOMER RELEASE NOTES
10/17/07 P/N: 9038177-17 Subject to Change Without Notice Page: 15 of 21
F0615-O
Firmware Release 6.0.4.4:
Router redundancy protocol on intermediary devices between RBT-8xx0 switches in a Mobility Domain can
interfere with communication among the switches. The workaround to this issue is to set the FDB timer (default
300 seconds) and the ARP timer (default 1200 seconds) to the same values on the RBT switches. Enterasys
Networks recommends using 300 seconds as the value for both timers.
Mixing Autonegotiation with full-duplex mode on a link causes slow throughput and can cause an RBT-8xx0
port to stop forwarding. The slow throughput occurs because the side that is configured for autonegotiation falls
back to half-duplex. A stream of large packets sent to an RBT-8xx0 port in such a configuration can cause
forwarding on the link to stop.
The RBT switch allows ** to be specified as a MAC address glob, but this is invalid for MAC globs.
There is an open issue when deploying the command ―set port disable 1‖ does not disable the port on the RBT-
8100.
The RBT-8400 mishandles fragmented packets from the XSR router due to a limitation in the network
processor.
Clients using the RBTBG/RBTBJ wireless client card with the RBTBX-PC wireless PCI NIC adapter have
experienced extended periods of traffic loss (up to 33% ping loss over a ten-minute time span).
The external antenna names for the RBT-1602 AP have not been converted to the Enterasys specific naming
convention. Note: Refer to the Tech Tip on page 15 for important information about configuring antenna types
for an RBT-1602 Access Point.
If a location policy (ACL) is added to an SSID that is using Web Authentication, the preconfigured portal ACL
will be overwritten and fail to load the logon page. It is strongly recommended not to adjust settings on the
preconfigured web portal ACL.
Disabling the dot1x authcontrol function may cause authentication issues. This is a global setting, reaching
many portions of the authentication code. It should remain enabled at all times unless specifically directed to
disable it. This does NOT turn on dot1x on any of the SSIDs.
ACL names can contain special characters (/,\,-,_), but they cannot contain spaces. ACL names must also
begin with a letter and not a number.
Due to a hardware limitation for the RBT3K, the lowest achievable power setting is 10 dB (lowest setting).
The RBT-8400 4 front panel ports are 1Gb ports copper or fiber (default) only.
The unmanaged RBT3K (fat-AP) may encounter conversion upgrade issues to managed mode (thin-AP)
across a routed network.
A single "*" used for User Glob does not work when using TLS.
WEP keys cannot be entered in ASCII format. HEX format is currently the only supported input.
The RBT-1002 does not support the automatic generation of RSA values (fingerprints). The dynamic creation of
the fingerprint occurs on Access Points that are ‗fat-to-thin‘ conversion types.
Tech Tip for Choosing External Antenna Types for the RBT-1602
When you select an antenna type for the RBT-1602, the menu choices displayed are listed in the left-hand
column in the table below. Use the antenna part numbers listed the right-hand column to identify the correct menu
choice.
RASM/RBT Antenna Choice:
Enterasys Antenna Part Number:
ANT1060
RBTES-BG-S1060
ANT1120
RBTES-BG-S07120
ANT1180
RBTES-BG-S06180
ANT5060
RBTES-AW-S1460
ANT5120
RBTES-AW-S12120
ANT5180
RBTES-AW-S10180
For the most up-to-date information concerning known issues, go to the Global Knowledgebase section at
http://www.enterasys.com/support/. To report an issue not listed in this document or in the Global
Knowledgebase, contact our Technical Support Staff.