FDDI Applications

Statistics are displayed in three ways:

¥By count (i.e., the number detected of each for the selected interval).

¥By rate (i.e., the number of each per second, as averaged over the selected interval).

¥Graphically, as a percentage of each with respect to total network load processed by the HSIM-F6 during the last interval.

You can view the concentrator performance for three different intervals:

¥Absolute Ð Counts recorded since the device was last started.

¥Cumulative Ð Counts recorded since the Concentrator Performance window was opened.

¥Delta Ð Counts recorded during a single polling interval that is set for SPECTRUM Element Manager (refer to the SPECTRUM Element Manager UserÕs Guide).

To change the interval, click to select the desired radio button in the Count Display panel in the top right hand corner of the window.

Available statistics are:

Transmit Frames

The number of frames transmitted by the HSIM-F6Õs MAC during the selected interval.

Receive Frames

The number of frames received by the HSIM-F6Õs MAC during the selected interval.

Frame Errors

The number of error frames detected by the HSIM-F6Õs MAC during the selected interval that had not been detected previously by other stations. Error frames may include frames with an invalid Frame Check Sequence (FCS), with data length errors, or with internal errors that prevent the MAC from transferring the frame to the Logical Link Control (LLC) layer.

Lost Frames

The number of frames detected by the HSIM-F6Õs MAC during the selected interval that have an unknown error, so their validity is in doubt. When the HSIM-F6Õs MAC encounters a frame of this type, it increments the Lost Frame counter and strips the remainder of the frame from the ring, replacing it with idle symbols.

FDDI Performance

6-11

Page 171
Image 171
Cabletron Systems 2000 manual Transmit Frames, Receive Frames, Frame Errors, Lost Frames

2000 specifications

Cabletron Systems was a prominent company in the networking and communications industry during the late 20th century, and by the year 2000, it had established itself as a leader in providing high-performance networking solutions. The company was known for its innovative approach to network architecture and its commitment to delivering reliable products that enabled seamless connectivity in various environments.

One of the primary features of Cabletron Systems in 2000 was its advanced networking technologies, including Local Area Network (LAN) and Wide Area Network (WAN) solutions. The company specialized in developing multi-layer switches that could efficiently manage traffic and deliver high-speed data transfer. Their products were particularly popular in enterprise settings, where network performance and reliability were paramount.

Cabletron's solutions included a range of products, from Ethernet switches to routers, which were designed with scalability and flexibility in mind. This allowed businesses to adapt their networks to accommodate growth, without the need for a complete overhaul of their infrastructure. The company’s Integrated Networking Architecture (INA) was a significant innovation during this period, enabling efficient communication and management of diverse network resources.

Another major characteristic of Cabletron Systems was its commitment to interoperability. The company’s products were designed to be compatible with several industry standards, ensuring that organizations could easily integrate Cabletron solutions into their existing networks. This focus on compatibility helped to foster collaboration among different devices and systems, further enhancing network efficiency.

Security was also a key feature of Cabletron’s offerings in 2000. With growing concerns about data breaches and unauthorized access, the company incorporated advanced security measures into its products. These features included robust authentication protocols, encryption options, and secure management interfaces, which helped safeguard sensitive data during transmission.

Customer support and service were paramount to Cabletron Systems' business model. The company provided extensive resources, including training and technical support, to ensure that customers could maximize the potential of their networking solutions. This dedication to customer satisfaction contributed significantly to Cabletron’s reputation in the marketplace.

In summary, Cabletron Systems in 2000 emerged as a frontrunner in the networking industry, characterized by its innovative technologies, commitment to interoperability, emphasis on security, and strong customer support. Their products and solutions were designed to empower businesses, helping them achieve greater efficiency, scalability, and reliability in their network operations.