●Packet Filters – (set in commands from the protocol) specifies the types of packets that can be received on this interface (more than one category can be specified:

◆Directed and Multicast or Group and Fuctional

◆Broadcast

◆Promiscuous (any packet on the LAN)

◆Any Source Packet (any source routing packet on the LAN)

●Packets In/Out – is the number of packets received/transmitted over the interface.

●Bytes In/Out – is the number of bytes received/transm itted over the interface.

●Multi-Cast In/Out – is the number of packets received/transmitted via a multicast address over the interface.

●Broadcast In/Out – is the number of packets received/transmitted via a broadcast address over the interface.

●Frm Dropped In/Out – is the number of incoming/outgoing frames that were dropped.

●Q Dropped In – is the number of incoming Q-packets that were dropped.

●Dropped Timeout – is the number of transmitted frames that did not return due to a timeout or reception of another frame.

●Errors In – is the number of errors received over the interface.

Ethernet-Specific Statistics

●Alignment Errors – is the number of frames with FCS (frame check sequence) errors due to non-integral lengths.

●Xmt w/1 Coll – is the number of frames that were transmitted after one collision (with a frame transmitted from another node).

●Overrun Errors – is the number of frames that were not accepted due to DMA (direct memory access) overrun errors.

●Xmt w/mul Coll – is the number of frames that were transmitted after multiple collisions.

●Xmt/Deferral – is the number of frames that were held up due to traffic from other directions, then transmitted later.

●Xmt CD Heartbeat – is the number of frames that were transmitted containing a CD (collision detection) signal .

●Not Xmt (Coll) – is the number of frames that were not transmitted due to colli- sions.

●Frm w/lost CS – is the number of frames that experienced a loss of the CS (carrier sense) signal at the receiving node.

●Late Collisions – is the number of transmitted frames that were involved in col- lisions while outside the flow control window.

●Underruns – is the number of frames that were not accepted due to DMA (direct memory access) underrun errors.

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Cabletron Systems 1800 manual Ethernet-Specific Statistics
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1800 specifications

Cabletron Systems, a leading player in network management and telecommunications solutions during the late 20th century, introduced several innovative products that played a crucial role in shaping enterprise networking. Among these were the Cabletron FRX6000, FRX4000, and the FRX1800, which delivered advanced features aimed at enhancing network performance, security, and scalability.

The Cabletron FRX6000 was designed as a robust multi-layer switch, ideal for large-scale enterprise environments. It supported extensive routing capabilities, allowing organizations to manage traffic efficiently even under heavy loads. The FRX6000 boasted high throughput rates and low latency, making it suitable for demanding applications. With support for various network protocols, including IP, IPX, and AppleTalk, its adaptability made it a versatile choice for diverse networking needs. Moreover, security features like VLAN support and Access Control Lists (ACLs) provided enhanced protection against potential threats.

Moving to the FRX4000, this model offered a balance between performance and cost-effectiveness. The FRX4000 maintained many of the essential features of its larger counterpart while catering to medium-sized enterprises. It provided Layer 3 routing and could handle multiple simultaneous connections, ensuring seamless communication across departments. The modular design allowed for easy upgrades, enabling businesses to expand their network infrastructure without significant overhauls. This made the FRX4000 an attractive option for organizations looking to optimize their network investments.

Lastly, the FRX1800, designed for small to medium businesses, focused on simplicity and ease of use while still incorporating powerful network management capabilities. Its user-friendly interface made it accessible for organizations lacking extensive IT resources. The FRX1800 provided essential functionalities such as Integrated Layer 2 switching and routing, network monitoring, and basic security features, ensuring that even smaller companies could maintain efficient, reliable networking without overwhelming complexity.

All three models utilized advanced technologies, including a high bandwidth backbone and state-of-the-art switching architecture, to enable fast and reliable data transfer. They also supported Quality of Service (QoS) mechanisms, allowing businesses to prioritize critical applications and ensure consistent performance across the network.

In summary, the Cabletron FRX6000, FRX4000, and FRX1800 were pivotal in enhancing network capabilities, providing organizations with scalable, secure, and high-performance options tailored to their specific needs.
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