VariableDescription

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:

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

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ELS100-24TX specifications

Cabletron Systems ELS100-24TX is a versatile network switch designed to cater to the demands of modern data communication. Intended for use in enterprise environments, the ELS100-24TX offers a wealth of features, making it an excellent choice for businesses seeking to enhance their network infrastructure.

One of the standout characteristics of the ELS100-24TX is its 24 Ethernet ports, which support Fast Ethernet connectivity at 10/100 Mbps. This high port density allows organizations to connect multiple devices without the need for additional networking hardware, simplifying setup and reducing costs. The switch employs autosensing technology, enabling it to automatically detect and configure the optimal connection speed for each connected device.

The ELS100-24TX supports advanced features such as VLAN (Virtual Local Area Network) functionality, permitting network administrators to segment traffic for better management and security. With VLAN support, businesses can effectively separate different departments or functions, ensuring that sensitive data remains protected within its own network segment.

Additionally, the switch incorporates Spanning Tree Protocol (STP), which is crucial for preventing broadcast storms and ensuring network stability. STP helps maintain loop-free topology in redundant network configurations, making it an essential feature for enterprises that rely on high availability.

Another impressive aspect of the Cabletron ELS100-24TX is its support for Quality of Service (QoS). This functionality allows network managers to prioritize specific types of traffic, ensuring that critical applications—such as voice over IP (VoIP) or video conferencing—receive the necessary bandwidth for optimal performance.

In terms of management, the ELS100-24TX features a user-friendly interface and provides various management protocols, including SNMP (Simple Network Management Protocol). This makes it easier for system administrators to monitor network performance, troubleshoot issues, and configure settings efficiently.

The robust design of the ELS100-24TX offers reliable operation, making it suitable for a wide range of applications. With its solid performance, excellent feature set, and ease of use, the Cabletron Systems ELS100-24TX is a valuable asset for any organization looking to strengthen its network capabilities.