Cabletron Systems ELS100-24TX User Manual
35 Industrial Way
PO Box 5005
Rochester, NH 03867-5005
(603)332-9400
CUSTOMER RELEASE NOTES
SmartSTACK Fast Ethernet Switches
ELS100-24TX, ELS100-24TXG, and ELS100-24TXM
Firmware Version 2.01.07
(Release Notes Revised February 7, 2000)
INTRODUCTION:
The ELS100-24TX SmartSTACK Fast Ethernet Switch provides 24 10/100 Mbps RJ45 ports.
The ELS100-24TXG SmartSTACK Fast Ethernet Switch provides 24 10/100 Mbps RJ45 ports and 2 GPIM
interface slots for Gigabit connectivity via Cabletron GPIM modules. The GPIMs add two additional ports, 25
and 26, for a total of 26 potentially active ports.
The ELS100-24TXM SmartSTACK Fast Ethernet Switch provides 24 10/100 Mbps RJ45 ports and 2
100BASE-FX multimode and/or singlemode fiber SC ports via a plug-in module (EPIM100-2F2/2F3/2F4).
RJ45 ports 1 and 2 are disabled when the fiber ports are installed for a total of 24 potentially active ports.
It is recommended that one thoroughly review this release note prior to the installation or
upgrade of this product.
FIRMWARE SPECIFICATION:
Status Version No. Version Displayed as * Type Release Date
Current Version 2.01.07 2.1.1.7 Customer 12/10/99
Previous Version 2.01.00 2.1.0.0 Customer 08/13/99
Previous Version 2.00.02 2.0.0.2 Customer 02/11/99
Previous Version 1.00.02 1.0.0.2 Customer 11/01/98
Previous Version 1.00.01 1.0.0.1 Customer 09/01/98
Previous Version 1.00.00 1.0.0.0 Customer 08/01/98
* Note: This is the version displayed by local and remote management.
HARDWARE COMPATIBILITY:
ALL
BOOTPROM COMPATIBILITY:
Bootprom Version: 1.01 or greater
NETWORK MANAGEMENT SOFTWARE SUPPORT:
2/7/00 P/N: 9032741-08 Subject to Change Without Notice Page 1 of 7
35 Industrial Way
PO Box 5005
Rochester, NH 03867-5005
(603)332-9400
CUSTOMER RELEASE NOTES
NMS Platform Version No. Module No.
SPECTRUM Post 5.0 Rev. 1 /CS2/MMS2
(SM-CSI1064)
SPMA (Spectrum Portable Management Application) Post 3.2 Rev. 1
SPEL (Spectrum Element Manager) Post 2.02.00 N/A
If you install this image, you may not have control of all of the latest features of this product until the next
version(s) of network management software. Please review the software release notes for your specific
network management platform for details.
SUPPORTED FUNCTIONALITY:
Features Support
802.1P – Traffic Management/ Dynamic Multicast
Filtering
802.1Q – VLAN tagging and identification
802.1D – Transparent Bridging YES
YES
YES
Auto Negotiation
Broadcast Suppression
Local Management via TELNET
Modem Support (external)
Port Mirroring
RMON
SNMP
Virtual Networking – VLANs
Cabletron WebView
Port Trunking (“Link Aggregation”)
INSTALLATION AND CONFIGURATION NOTES:
In general, the ELS100-24TXG or ELS100-24TXM will not be shipped to you pre-configured with this version
of firmware. If you would like to upgrade an existing ELS100-24TX, ELS100-24TXG or ELS100-24TXM,
please follow the TFTP download instructions that are included with your firmware image upgrade kit. TFTP
download instructions are also available on the Cabletron Support Web Site at:
http://www.cabletron.com/support/techtips/tk0208-9.html.
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
FIRMWARE CHANGES AND ENHANCEMENTS:
2/7/00 P/N: 9032741-08 Subject to Change Without Notice Page 2 of 7
35 Industrial Way
PO Box 5005
Rochester, NH 03867-5005
(603)332-9400
CUSTOMER RELEASE NOTES
1. Support for the “Hunt Group” protocol (Smarttrunking) mode of port trunking was removed. Port
trunking is still supported. All trunking protocol selections were removed from the Trunking
Configuration Menu.
2. Changing port names via Cabletron WebView would not be saved to non-volatile memory. --This has
been fixed.
3. When connecting with Telnet from Sun Solaris 2.6, 2.7 and Red Hat Linux 5.2 and 6.0 into the switch,
extra asterisk (*) characters were displayed and each password character was echoed back. This has
been fixed.
4. Port mirroring options have been changed so that transmit and receive can now be set to yes/no
independently. Both can now be enabled at the same time; this was not possible in previous firmware
versions.
5. A new feature has been added to the Spanning Tree configuration screen in the user interface: menu
item “h. Spanning Tree Standby Enable”, which has allowable settings of YES or NO. The default
setting is YES. With this setting there is a 30-second forwarding delay time. If set to NO, all ports will
go into forwarding mode within approximately one second (Fast Port). This setting can be used to
avoid timeouts (with resulting failure to connect) at workstations directly attached to the switch. Note
that this setting affects all ports, and can not be set on an individual port basis.
The Spanning Tree Standby configuration option has also been added to the Web-Based
Management, and can be found in the Switch Configuration, then Spanning Tree Configuration
menus.
Note: A new MIB object has been added to the Cabletron Proprietary MIB, and is described here as a
supplement to Table 5-2 in the Installation and User Guide:
Variable Description
SwitchSpanningTreeStandby Globally enable/disable Spanning Tree Standby on the switch.
6. A change has been made which will prevent a mis-configuration of Port Mirroring. Port mirroring mis-
configuration causes the feature to be enabled in the hardware although the configuration screen
indicates it is disabled. A mis-configuration occurs when the mirrored port and mirroring port are
selected from two different clusters.
7. A verification prompt was added to eliminate the danger of accidentally enabling port mirroring. The
prompt is displayed if the current state of port mirroring is disabled and the user presses the “F” key to
enable port mirroring on the configuration menu.
8. Using Netscape Navigator for Web management had problems when the “reload” command was
invoked. This has been fixed.
9. When configuring VLANs, the user could not assign specific VLAN IDs. This has been fixed.
10. The dot1qNextFreeLocalVlanIndex should return “0”. This has been fixed.
11. A new feature has been added, whereby the switch will save all configuration information to non-
volatile memory before a TFTP file transfer request is processed.
12. A change has been made whereby the default is for diagnostic testing to be OFF. Diagnostics can be
enabled through the user interface: select System Configuration, then Power Up Diagnostics to toggle
between YES (enabled) and No (disabled).
13. SNMP Interface Index values were incorrectly returning the wrong port numbers (it would return Port
Number +1). – This has been fixed.
14. Fixed Spanning Tree bug: According to 802.1d, right after a topology change, root should use shorter
aging timeout (forward delay) instead of 5 minutes. It should use this timeout for (forward delay + max
age).
15. A bug that allowed system MAC addresses to be improperly aged out, causing loss of TCP/IP
connections, had previously existed. -- This has been fixed.
2/7/00 P/N: 9032741-08 Subject to Change Without Notice Page 3 of 7
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