Source Addressing

A port’s topology status (station or trunk) remains fixed while locking is in effect, even if the number of detected addresses changes.

Any ports disabled due to a violation (or because they were unlinked when locking was enabled) must be manually re-enabled via their Port menus, and

There are no additional Security features available.

If you are not sure which set of port locking features your device firmware supports, contact Cabletron Systems Technical Support.

Configuring Source Address Traps

The SEHI can issue several different traps in response to changes in the Source Address Table; you can enable and disable certain of these traps for the SEHI as a whole, and, if your device has very new firmware, they can also be enabled or disabled for each individual module and port.

NOTE

If the Module Traps and Port Traps buttons on the Repeater Source Address screen are grayed-out, your device firmware does NOT support the ability to enable and disable source addressing traps at the module and port levels. Contact Cabletron Systems Technical Support for information about upgrading your device firmware.

SPMA does not accept the trap messages; that task is left to your network management system. (See the appropriate network management system documentation for details about viewing trap messages.) When this utility is used in stand-alone mode, traps will either be ignored when they return to the workstation from which you are running SPMA for the SEHI, or they will turn up at another management workstation which has been configured to accept traps. Note also that, regardless of the configuration performed using this utility, NO traps will be sent by the device unless its trap table has been properly configured; see the SEHI hardware manual and/or the Trap Table chapter in the SPMA Tools Guide for more information.

You can enable and disable the following Source Address traps:

A newSourceAddress trap is generated when a station port — one receiving packets from zero, one, or two source addresses — receives a packet from a source address that is not currently in its source address table. Information included in this trap includes the board number, port number, and source address associated with the trap. Trunk ports — those receiving packets from three or more source addresses — will not issue newSourceAddress traps.

A sourceAddressTimeout trap is issued anytime a source address is aged out of the Source Address Table due to inactivity. The trap’s interesting information includes the board and port index, and the source address that timed out. (See Setting the Ageing Time, page 5-4, for more information.)

Other traps that will be sent in response to changes in source addressing (even when the above traps have been disabled) include:

Configuring Source Address Traps

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Cabletron Systems SEHI-22/24, SEHI-32/34 manual Configuring Source Address Traps

SEHI-22/24, SEHI-32/34 specifications

Cabletron Systems was a notable player in the networking hardware market during the rise of local area networks (LANs) in the late 20th century. Among its innovative products were the SEHI-22/24 and SEHI-32/34 modules, which were designed to enhance network capabilities in enterprise environments.

The SEHI-22/24 and SEHI-32/34 were versatile high-performance Ethernet switch modules that offered significant advantages in network management and connectivity. These modules were designed to work with Cabletron's modular switching and routing architecture, allowing for scalable solutions tailored to specific network demands. A key feature of the SEHI series was its support for a range of Ethernet standards, ensuring compatibility with diverse networking environments.

One notable characteristic of the SEHI-22/24 was its ability to support both 10Base-T and 100Base-TX Ethernet technologies. This dual support enabled organizations to leverage existing 10 Mbps infrastructure while facilitating upgrades to 100 Mbps speeds without needing a complete overhaul of the network. Similarly, the SEHI-32/34 offered even greater connectivity options, accommodating more users and devices while maintaining high throughput and low latency.

In terms of management features, the SEHI series was equipped with extensive traffic management capabilities, including Quality of Service (QoS) features that prioritized bandwidth for critical applications. This ensured that essential services such as voice over IP (VoIP) and video conferencing could function optimally, even during heavy network loads.

Furthermore, both modules featured advanced diagnostics and monitoring tools that provided network administrators with critical insights into traffic patterns and potential bottlenecks. This functionality was essential for maintaining network health and optimizing performance, especially in dynamic business environments.

Security also played a crucial role in the design of the SEHI-22/24 and SEHI-32/34. The modules incorporated support for various authentication methods and access controls, ensuring that sensitive data remained protected within the corporate network.

In summary, Cabletron Systems’ SEHI-22/24 and SEHI-32/34 offered significant advancements in Ethernet switching technology, allowing organizations to build robust, scalable, and secure networks. With their impressive features, compatibility, and capacity for management and security, these modules were instrumental in shaping reliable networking solutions for enterprises navigating the rapidly evolving digital landscape.